Progress 10/01/19 to 09/30/20
Outputs
Target Audience:Target audiences: Scientific peers, Students, Environmental Engineering Industry, State and Federal Environmental Regulatory Agencies, Farmers, USDA, Plastic Producers, Organic Councils, General public, Conservation districts, Consultants, State Commodity Commissions, Regional Grower Associations. Efforts: We have reached out to target audience through a variety of means. Information obtained through our research and extension activities have been incorporated in formal education programs, such a classroom instruction, field days, extension classes, podcasts and workshops, and journal publications. Flury and Sanguinet have been featured in the WSU Wheat Beat Podcast. Participants Tao and Pan, who have formal extension appointments, have spent considerable efforts in outreach and extension activities. Soil health and nutrient management research findings and concepts were presented at various workshops, field days, and biosolids conferences to over 300 producers, practitioners, and field consultants. Participant Friesen also participated in outreach workshops reaching ~100 producers, practitioners, and field consultants. Friesen also led a series of co-innovation workshops involving 60 researchers, students, growers, conservation districts, and field consultants. Participants D. Griffin LaHue and G. LaHue presented on soil health work at extension events and grower conferences to over 200 producers and consultants, and led a soil health workshop with 27 attendees including growers, industry representatives, and state government employees. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?We have provided training of high school students, undergraduate students, graduate students, and visiting scientists. We have also provided training to professionals (compost professionals, engineers, farmers, consultants) through workshops and field days. One PhD student has received his degree, and several new students and postdocs have been hired. Students had the opportunity to attend and present at the international meeting of the Tri-Societies in San Antonio and at other international meetings (such as the American Society for Horticultural Science and the Ecological Society of America). How have the results been disseminated to communities of interest?Journal articles have been published, research results have been presented at invited seminars and volunteered presentations at professional meetings. A compost workshop was held to educate and inform compost professionals on how to build compost and inform them about newest research results. We also communicated findings in the form of podcasts to farmers and stakeholders. We conducted on-farm research to develop strategies for emerging and long-standing management issues; updated existing and develop new guidelines, technical bulletins, and factsheets; and provided educational programs such as workshops, webinar series, videos, virtual soil health cafe, newspaper articles. What do you plan to do during the next reporting period to accomplish the goals?We will continue the work on the biodegradable plastic mulches and their impacts on soil quality. We will expand that work by studying on fate and transport of macro- and nanoplastics in terrestrial systems. We will continue to conduct applied on-farm research using cutting-edge digital agricultural technologies and big data to bring the WA farm industry advanced knowledge in fertility, soil health, and residue management. We will continue research on managing soils, water, and nutrients to help producers make data-driven decisions that reduce costs, increase production, and/or protect natural resources. This includes ongoing work on irrigation and nutrient management (and their interaction with plant disease), as well as new research on subirrigation impacts on soil water and nutrient dynamics. We will conduct soil health assessments across valuable specialty crop systems-such as potatoes, wine grapes, onions, and hops- to better understand how management of these systems drives physical, biological and chemical soil health properties and to assist growers in tracking improvements in their soils. We propose to focus on the role of root traits, root anatomy and morphology on nutrient uptake and water use efficiency. We will also focus on factor such as lignin content contributes to stress resilience.
Impacts
What was accomplished under these goals?
Objective (1): To identify and quantify mechanisms of flow and transport of water, energy, and solutes in the root zone and rhizosphere. Our work on biodegradable plastic mulch films has shown that biodegradable plastic films do not negatively impact soil health over a 4-year period. Comprehensive soil health assessments were conducted over a 4-year period in Washington and Tennessee. Soil health under biodegradable plastic mulch was equal or better than under polyethylene plastic mulch. We then also investigated the degradation of biodegradable plastics in soil. Degradation in soil takes much longer than what standard laboratory tests would predict, and it can take several years (4 to 6 years) before full degradation occurs. We also evaluated whether plastic particles in the soil can potentially be taken up by plants. Our studies indicate that plastic particles accumulated at the surface of wheat and Arabidopsis, but we did not find any uptake into the interior of the roots. We also tested whether and how biochar particles move through a soil, and found that biochar particles can facilitate the movement of antibiotics and organic contaminants. In a recent review articles, we summarized recent work on surface and colloid properties of biochar particles. Objective (2): To determine the role of the soil microbiome on metal and nutrient biogeochemistry. Working within the bioenergy crop switchgrass, we performed greenhouse and controlled growth chamber experiments relating nitrogen fertilization, root exudate chemistry and root morphology, and interactions with the microbiome. We found one particular taxon Micromonospora that was associated with shifts in plant root length and published this research paper. We also published a research paper documenting shifts in switchgrass root exudates in response to N fertilization using sterile growth systems, with plant roots exuding primarily sugars under high N and shifting to organic acid exudation under low N. We also published a paper describing the optimization of N-fixation potentials in the lab used a cocktail of carbon sources. Using the model legume Medicago, we published a paper showing how plant allocation to N-fixing symbionts shifts in response to varying N and light levels. In addition, we published several review papers on plant-microbe interactions. One considered the role of partner choice in maintaining beneficial interactions and reviewed the literature as well as presenting a simple simulation model exploring how host selection generates genomic patterns of linkage in symbiont genomes. Another reported results of a broad meta-analysis of the effect size of bacterial and fungal partners on ameliorating biotic and abiotic stress and found that overall fungi has stronger effects than bacteria, particularly for biotic stress. Finally, we wrote an Annual Review that considered how social evolution forces operate within plant pathogens, re-evaluating existing examples and making the prediction that the evolution of "cheating pathogens" could be an effective form of biocontrol. Objective (3): To develop management strategies to optimize water and nutrient supply, delivery, and uptake by plants while minimizing availability and uptake of toxic substances and particles. Long-term research contributed concepts and data to support the building of the first U.S. commercial straw pulping plant, which started commercial operation in January 2020. The Columbia Pulp Mill has stimulated the rural economy around Starbuck, WA and it will process 250,000 dry tons of straw/Y at full capacity. It is producing cellulose fiber for paper and cardboard production and a lignin rich coproduct that our research has shown to improve soil health and carbon storage when returned to the soil. Creation of a local straw market is predicted to reduce field burning and better enable direct-seeding in no-till systems. As a result of extension & outreach programs, 17 farmers limed approximately 50,000 acres which led to yield increases of 370,000 bushels winter wheat or 10,000 tons lentils. This yield increase translates into $1.5-7M/year for farmers. And, farmers started growing cover crops or switched to no-till. These changes translate into an annual reduction of 98,000 tons of soil and 1,800 tons of soil organic matter (1,044 tons soil organic carbon) lost to erosional processes. Preliminary data from our work with soil moisture management and irrigation thresholds suggest that conventional irrigation scheduling practices do not optimize crop production while minimizing producer costs and resource use for either spinach seed production or cider apple production. Results have been shared with producers through local, regional, and national events, leading to a change in knowledge. This highlights the importance of continued research to help producers manage inter-annual variability in weather patterns and adapt to climate change impacts. No recommendations have been made at this stage of the research (needs further study) and as such, no changes in actions have been documented. Additionally, we made progress toward establishing a soil health database and baseline soil health assessment of annual and perennial specialty crop systems in Washington. By sampling across numerous farms and collecting detailed management and soils data, we will not only be able to generate improved scoring curves for soil health indicators in the Pacific Northwest, we will also begin to understand which practices are most effective at improving soil health, leading to more efficient nutrient cycling and improved soil-water relations. Objective (4): To determine how root growth and development as well and phenotypically plastic root traits impact crop health and productivity. We reported the impact of a novel irrigation strategy called direct root zone (DRZ) deficit irrigation on yield, water use efficiency, and root growth in grapevines. We found that DRZ promoted deeper rooting and limited rooting in the top 60 cm of the soil profile. In addition, DRZ improve water use efficiency in comparison to surface drip irrigation. In wheat, we found a negative correlation between root area and root diameter and also found that there was a correlation between heading date and root area.
Publications
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
LaHue, G.T. Supplemental irrigation strategies for spinach seed production in western Washington. . Oral presentation at the 2019 American Society of Agronomy and Soil Science Society of America Annual Meeting, San Antonio, TX, November 13th, 2019.
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Ma, X, Jacoby, P., Sanguinet KA, (2020) Improving Net Photosynthetic Rate and Rooting Depth of Grapevines Through a Novel Irrigation Strategy in a Semi-Arid Climate Frontiers in Plant Science https://doi.org/10.3389/fpls.2020.575303
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Smertenko T, Turner G, Fahy D, Brew-Appiah RAT, Alfero-Alco R, de Almieda Engler J, Sanguinet KA, Smertenko A. (2020) Brachypodium distachyon MAP20 functions in metaxylem pit development and contributes to drought recovery, New Phytologist, https://doi.org/10.1111/nph.16383
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Ghimire B, Hulbert S, Steber C, Garland-Campbell K, Sanguinet KA. (2020) Characterization of root traits for improvement of spring wheat in the Pacific Northwest, Agronomy Journal, 121: 1(228-40)
https://doi.org/10.1002/agj2.20040
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Ma X, Sanguinet KA, Jacoby P. (2020) Direct root-zone irrigation outperforms surface drip irrigation for grape yield and crop water use efficiency while restricting root growth. Agricultural Water Management, 231, 105993 https://doi.org/10.1016/j.agwat.2019.105993
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
Brew-Appiah RAT, Sanguinet KA (2020) Analysis of SALP1 genes in wheat for stress tolerance, Lind Field Day Abstract, June 2020
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
Peracchi LP, Brew-Appiah RAT, Sanguinet KA (2020) Exploring CAD genes as agents for stress-tolerant wheat, Lind Field Day Abstract, June 2020
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
Sanguinet KA. 2020. The role of the BUZZ kinase in post-initiation root hair growth. 28th Plant and Animal Genome Meeting, San Diego, CA January 14, 2020.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
Asthana P, Zuger R, Brew-Appiah RAT, Sanguinet KA, Burke IC. 2020. EPSPS gene amplification confers glyphosate resistance in downy brome. WSWS/WSWS Annual Conference. March 2-5, Maui, Hawaii, oral paper presentation
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
L Ga��n, R White III, ML Friesen, T Peever, A Amiri. A Genome Resource for the Apple Powdery Mildew Pathogen Podosphaera leucotricha Phytopathology DOI 10.1094/PHYTO-05-20-0158-A.
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Friesen ML. 2020. Social evolution and cheating in plant pathogens Annual Review of Phytopathology
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Smercina DN, Bowsher AW, Evans SE, Friesen ML, Eder EK, Hoyt DW, Tiemann LK. 2020. Switchgrass Rhizosphere Metabolite Chemistry Driven by Nitrogen Availability. Phytobiomes PBIOMES-09
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Porter SS., Bantay R., Ibaretta K., Friel CA., Garoutte A., Gdanetz K., Moore BM., Shetty PS., Siler E., Friesen, ML. 2020. Beneficial microbes ameliorate abiotic and biotic sources of stress on plants. Functional Ecology DOI: 10.1111/1365-2435.13499
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Petipas RH, Bowsher A, Bekkerring C, Mclachlan E, White RA, Younginger B, Jack CN, Tiemann LK, Evans SE, Friesen ML. (2020) Interactive effects of microbes and nitrogen on Panicum virgatum root functional traits and patterns of phenotypic selection. International Journal of Plant Sciences 181, no. 1 (January 2020): 20-32. DOI: 10.1086/706198
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Friel, CA, Friesen, ML. 2019. Legumes modulate allocation to rhizobial nitrogen fixation in response to factorial light and nitrogen manipulation. Frontiers in Plant Science 10:1316 DOI 10.3389/fpls.2019.01316
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Smercina, D, Evans, SE, Friesen, ML, Tiemann, LK. 2019. Optimization of the 15N2 incorporation and Acetylene Reduction Methods for Free-Living Nitrogen Fixation. Plant and Soil 445, pages595611 DOI: 10.1007/s11104-019-04307-3
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Younginger, BY, Friesen, ML. (2019) Connecting signals and benefits through partner choice in plant-microbe interactions. FEMS Microbiology Letters Sep 1;366(18). doi: 10.1093/femsle/fnz217
- Type:
Conference Papers and Presentations
Status:
Accepted
Year Published:
2020
Citation:
D. Griffin LaHue, Advanced Topics in Soil Science: Soil Health Across Scales, Graduate Seminar, Fall 2020
- Type:
Websites
Status:
Accepted
Year Published:
2020
Citation:
WSU Soil Health website, soilhealth.wsu.edu. Created by D. Griffin LaHue, C. Benedict. Created
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
LaHue, D.G. Opening the Black Box: Integrating soil biology into soil health testing and system management. Columbia Basin Soil Health Working Group meeting, July 21, 2020. Audience: 12 potato industry professionals (processors, commissioners), 5 farmers, 10 researchers (Invited by Washington Potato Commission)
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
LaHue, D.G., D. McMoran, S. Seefeldt, T. Una, B. Maupin. Cover crop alternatives for potato growers in Western Washington. Western Washington Annual Potato Workshop, February 21, 2020. Audience: ~ 35 growers and agricultural professionals (Invited presentation)
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
Koenig, R., C. Kruger, D.G. LaHue (co-presentation). Managing soil health in potatoes. 2019 Potato Summit of the Washington Potato Commission, Spokane, WA, December 10, 2019. Audience: ~60 attendees, 45 growers, 15 agricultural professionals (Invited presentation).
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
D.G. LaHue, T. Una, B. Schacht, C. Benedict, G.T. LaHue, L.W. DeVetter. Alternative tillage in raspberry alleyways to reduce costs and improve soil health. Small Fruit Conference, Lynden, WA, December 5, 2019. Audience: ~30 attendees, ~10 farmers.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
D.G. LaHue, Soil health across Washington State. Pacific Northwest Vegetable Association Conference, Kennewick, WA, November 20, 2019. Audience: ~50 farmers and consultants (Invited presentation).
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
LaHue, D.G. Soil health concepts and management. Training for farmers in Viva Farms Cultivating Success Program, Mount Vernon, WA, October 24, 2019. Audience: ~ 20 farmers (Invited presentation).
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
LaHue, D.G. The Ins and Outs of Soil Carbon. Presentation organized by WSU Island County Extension, Coupeville, WA, October 21, 2019. Audience: 42 attendees, 20 farmers, 1 county commissioner (Invited presentation).
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Zhang, H., M. Flury, C. Miles, H. Liu, and L. DeVetter, Soil-biodegradable plastic mulches undergo minimal in-soil degradation in a perennial raspberry system after 18 months, Horticulturae, 6, 47, doi:10.3390/horticulturae6030047, 2020.
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Ghimire, S., M. Flury, E. J. Scheenstra, and C. A. Miles, Sampling and degradation of biodegradable plastic and paper mulches in field after tillage incorporation, Sci. Total Environ., 703, 135577, doi.org/10.1016/j.scitotenv.2019.135577, 2020.
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Yang, W., T. Feng, M. Flury, B. Li, and J. Shang, Effect of sulfamethazine on surface characteristics of biochar colloids and its implications for transport in porous media, Environ. Pollut., 256, 113482, doi.org/10.1016/j.envpol.2019.113482, 2020.
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Yang, W., J. Shang, B. Li, and M. Flury, Surface and colloid properties of biochar and implications for transport in porous media, Critical Rev. Environ. Sci. Technol., 50, 24842522, 2020.
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Beres, B.L., J.L. Hatfield, J.A. Kirkegaard, S.D. Eigenbrode, W.L. Pan, R. P. Lollato, J.R. Hunt, S. Strydhorst, K. Porker, D. Lyon, J. Ransom and J. Wiersma. 2020. Front. Plant Sci. Towards a better understanding of Genotype � Environment � Management interactions a global Wheat Initiative agronomic research strategy. Research Topic: Exploring GxExM Synergies in World-Wide Wheat Production and the Opportunities for International Collaboration. Front. Plant. Sci. 11: article 828. https//:DOI: 10.3389/fpls.2020.00828
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Porter, M. W.L. Pan, W. Schillinger, I. Madsen, and H. Tao. 2020. Winter canola response to soil and fertilizer nitrogen in semiarid Mediterranean conditions. Agron. J. 112: 801-814. https//:DOI: 10.1002/agj2.20119
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Breslauer, R.S., D.J. Brown, W.L. Pan, D.R. Huggins, and H. Tao. 2020. Dense subsoils limit winter wheat rooting depth and soil water depletion. Agron. J. 112: 81-91. https//:DOI: 10.1002/agj2.20037
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Pan, W.L., K.K. Kidwell, V.A. McCracken, R.P. Bolton. M. Allen. 2020. Economically optimal wheat yield, protein and nitrogen use component responses to varying N supply and genotype. Front. Plant Sci. 10: article 1790. https//:DOI: 10.3389/fpls.2019.01790
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
Pan, W.L. 2019. SSSA Presidents message: 2019: A Momentous Year for SSSA . CSA News, 64 (12),14. doi:10.2134/csa2019.64.1206
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
Pierzynski, G., EA Guertal, W. Pan. 2019. Presidents message: Answers to Common Questions Regarding the ACSESSWiley Partnership , CSA News, 64 (12), 18-19.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
Pan, W.L. 2019. SSSA Presidents message: Drawing Inspiration (and New Members) from Youth Activism for Climate Change, Global Health . CSA News, 64 (11), 21-22. https://doi.org/10.2134/csa2019.64.1106
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Alege, F.P., G.J. Miito, L.W. Devetter, H. Tao, P.M. Ndegwa. 2020. Effect of blending dairy manure compost and canola meal on pellets quality and nutrients concentrations. Transactions of the ASABE. doi: 10.13031/trans.14057
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Delwiche, S., H. Tao, R.S. Breslauer, B.T. Vinyard, and S.R. Rausch. 2020. Is it necessary to manage falling number in the field? Agrosystems, Geosciences & Environment. 3(1): e20014. doi: https://doi.org/10.1002/agg2.20014
- Type:
Other
Status:
Published
Year Published:
2020
Citation:
Porter, M.J., W.L. Pan, W.F. Schillinger, I.J. Madsen, H. Tao. 2020, Winter canola response to soil and fertilizer nitrogen. Crop & Soil magazine. 53(2):38-45. American Society of Agronomy. Online ISSN: 2325-3606, Print ISSN: 0162-5098. Madison, WI. DOI: 10.1002/crso.20020
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
Lu, Q., R. Bunn, E. Whitney, H. Tao, and L. DeVetter. 2020. Impacts of mycorrhizal fungal inoculants and fertilizer sources on red raspberry. American Society for Horticultural Science (ASHS) Annual Conference. Aug. 9-13. Orlando, FL. 1st place in Graduate Student Poster Competition.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
Friedrichsen, C., A. Lavoie, C. Wardropper, C. McFarland, M. Friesen, H. Tao, S. Daroub, J.D. Wulforst, D.R. Huggins. 2020. Cultural understandings of soil health. Results from an inter-cultural project. EURO SOIL 2020 Congress. Geneva, Switzerland. August 24-28, 2020.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
McFarland C., C. Friedrichsen, H. Tao, M.L. Friesen. July 31, 2020. Working Together for Soil Health: using liberating structures for co-learning, co-innovation, and building soil health community in Washington. Soil Health Initiative 5th Annual Meeting. Virtual.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
Alege, F.P., G.J. Miito, L.E. DeVetter, H. Tao, P.M. Ndegwa. July 12-15, 2020. Effects of blending dairy manure compost and canola meal on pellets quality and nutrients concentration. ASABE Annual International Meeting. Omaha, NE.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
Alege, F.P., G.J. Miito, L.E. DeVetter, H. Tao, P.M. Ndegwa. July 12-15, 2020. Co-pelletization of dairy manure compost and fishmeal. ASABE Annual International Meeting. Omaha, NE.
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Sintim, H. Y., A. I. Bary, D. G. Hayes, L. C. Wadsworth, M. B. Anunciado, M. E. English, S. Bandopadhyay, S. M. Schaeffer, J. M. DeBruyn, C. A. Miles, J. P. Reganold, and M. Flury, In situ degradation of biodegradable plastic mulch films in compost and agricultural soil, Sci. Total Environ., 727, 138668, doi.org/10.1016/j.scitotenv.2020.138668, 2020.
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Kessenich, B. L., N. Pokhrel, J. K. Kibue, E. Nakouzi, M. Flury, L. Maibaum, and J. J. D. Yoreo, Negatively-charged lipids exhibit negligible effects on the water repellency of montmorillonite films, ACS Omega, 5,1215412161, 2020.
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Taylor, S. E., C. I. Pearce, K. A. Sanguinet, D. Hu, W. B. Chrisler, Y.-M. Kim, Z. Wang, and M. Flury, Polystyrene nano- and microplastic accumulation at Arabidopsis and wheat root cap cells, but no evidence for uptake into roots, Environ. Sci.: Nano, 7, 19421953, 2020.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
Sloan C., Griffin D., Benedict C., DeVetter L.W., and G.T. LaHue. Quantifying nitrogen supply from soil organic matter for highbush blueberry production. Oral presentation at the American Society for Horticultural Science Annual Meeting, Virtual, August 11th, 2020.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
LaHue G.T., Alexander T., Scheenstra E., King J., and C. Miles. Optimizing cider orchard performance with irrigation scheduling and regulated deficit irrigation Poster presentation at CiderCON 2020, Oakland, CA, January 30th, 2020.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2020
Citation:
LaHue G.T., Alexander T., Scheenstra E., King J., and C. Miles. Regulated deficit irrigation: increasing cider orchard water use efficiency and fruit quality? Oral presentation at CiderCON 2020, Oakland, CA, January 29th, 2020.
|
Progress 10/01/18 to 09/30/19
Outputs
Target Audience:Target audiences: Scientific peers, Students, Environmental Engineering Industry, State and Federal Environmental Regulatory Agencies, Farmers, USDA, Plastic Producers, Organic Councils, General public, Conservation districts, Consultants, State Commodity Commissions. Efforts: We have reached out to target audience through a variety of means. Information obtained through our research and extension activities have been incorporated in formal education programs, such a classroom instruction, field days, extension classes, podcasts and workshops, and journal publications. We have provided internship opportunities for students in our laboratories, including undergraduate and high school students. Participants Tao, Pan, Griffin LaHue, and LaHue, who have formal extension appointments, have spent considerable efforts in outreach and extension activities in both eastern and western Washington. Soil and nutrient management research findings and concepts were presented at Washington Oilseed Cropping Systems and crop/soil consultant workshops, field days, soil health workshops and focus groups, and biosolids conferences to over 200 producers, practitioners, and field consultants. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?We have provided training of high school students, undergraduate students, graduate students, Master Gardeners, and visiting scientists. We have also provided training to professionals (compost professionals, engineers, farmers, consultants) through workshops and field days. How have the results been disseminated to communities of interest?Journal articles have been published, research results have been presented at invited seminars and volunteered presentations at professional meetings. A compost workshop was held to educate and inform compost professionals on how to build compost and inform them about newest research results. Two soil health workshops, one in Whatcom County and one in Snohomish County, were organized for farmers to learn about key soil health concepts, potential management strategies to improve their soils, and ways in which they can measure and track the quality of their soils. What do you plan to do during the next reporting period to accomplish the goals?We will continue the work on the biodegradable plastic mulches and their impacts on soil quality. We will also continue to work on examining the habitability of extreme environments. We will work on evaluating fate and transport of the plant pathogen Phytophthora in porous media and soils. We will continue our work on hydraulic characterization of biochars. We will undertake a soil health assessment of seven major specialty cropping systems in Washington to inform road-mapping for Washington's Soil Health Initiative, identify key physical, chemical, and biological indicators for tracking soil health improvements, and to inform scoring curves for the Pacific Northwest region. For Objective 3, we will evaluate alternative water and nutrient management strategies in diverse cropping systems, including blueberry, cider apple, onion, and spinach crops. We will continue to examine root architectural traits of winter wheat, grapevines, and model plant systems to determine the impact of irrigation regimes, management, and environmental factors on root growth and health.
Impacts
What was accomplished under these goals?
A 25 year-old collaboration between WSU soil science and UW pulp and paper engineering generated an interdisciplinary scientific data set and laid the conceptual foundation for the 2019 building of a large-scale $250 million straw pulping plant in rural eastern Washington, the first pulping plant of any kind to be built in the U.S. in over a decade. The plant will employ 100 people and process 250,000 tons of wheat straw per year, producing 140,000 ADMT of fiber and 30,000,000 gallons of bio-polymer for use in sustainable consumer and industrial products. Further, our collaborative soil health research with national projects lead by the Soil Health Initiative and the USDA-NRCS have provided two sampling and analytical frameworks for moving forward on a new 2019 Washington State Soil Health Initiative. Our work also demonstrated that biodegradable plastic mulch films do not cause negative impacts on soil health over the short-term (~4 years), but long-term studies are needed before biodegradable plastic mulches can be safely recommended. This results directly informs regulations currently underway by the National Organic Program. We also developed a WSU farmers' network as a platform on which farmers, stakeholders, and researchers can put farmers' data in use, pool ideas, exchange information, and use what they learn together for co-innovation. Field-scale on-farm precision experimentation supported by the network can enhance the success of employing the 4Rs of nutrient stewardship. Objective (1): To identify and quantify mechanisms of flow and transport of water, energy, solutes, and colloids in the root zone and rhizosphere. We evaluated the degradation of biodegradable plastics during composting and determined whether additives from the plastics are released upon degradation. Two biodegradable plastic films-one containing polybutylene co-adipate co-terephthalate (PBAT) and the other containing polylactic acid/poly-hydroxyalkanoate (PLA/PHA)-were placed into meshbags and buried in the compost.The results showed >99% macroscopic degradation of PLA/PHA and 97% for PBAT film. Polymers in the biodegradable films degraded; however, micro- and nanoparticles, most likely carbon black, were observed on meshbags. We also tested whether metals leach from biosolids applied to the soil surface. Biosolids samples were irrigated with water while biosolids were subjected to different temperatures, water contents, or freezing-thawing. Higher drying temperature enhanced metal leaching, however, water content or freezing-thawing had no significant effects on metal leaching. Thus, freezing of biosolids during winter will likely not cause an enhanced leaching of metals in spring when biosolids and soils thaw. Application of biosolids in fall should therefore not cause enhanced leaching of metals out of land-applied biosolids. Objective (2): To determine the role of the soil microbiome on metal and nutrient biogeochemistry. We continued work to identify soil bacterial species and fungal species associated with Fe chlorosis in Concord vineyards, as well as to sequence the genomes of organisms secreting siderophores and organic acids that alter Fe bioavailability. We developed a high-throughput technique to assess siderophore production in soils and plant tissues, and applied that method for advanced metagenomics analysis to further target vineyard management for nutrient deficiencies. We also applied the method to the wheat rhizosphere in a greenhouse study and have examined the impact of wheat genotype on microbiome community structure and siderophore production. We continued our work on examining whether the driest places on earth can be a habitat for an active microbial community or whether the microbes found at these locations are rather dormant or dead cells. We have investigated special habitats, such as gyspum and halite rocks and soil under large boulders. These results have implications for the prospect of life on other planets such as Mars. Ongoing work is determining the impacts of cover crop species on soil microbial community composition and evaluating whether changes in the soil microbiome remain into a proceeding potato crop. These parameters are looked at in concert with measurements of plant nutrient availability and microbially available pools of carbon and nitrogen. Objective (3): To develop management strategies to optimize water and nutrient supply, delivery, and uptake by plants while minimizing availability and uptake of toxic substances and particles. We evaluated the effects of four biodegradable plastic mulches on soil health at two sites (Knoxville, TN and Mount Vernon, WA) under pie pumpkin (Cucurbita pepo) production. Cellulosic paper, polyethylene, and no-mulch served as controls. Soil health was first assessed in May 2015, and then every six months until Fall 2018, by measuring 19 soil properties (physical, chemical, and biological). The results showed poor correlations and high spatial variations for most of the soil properties. The soil properties, soil health indicators, and soil functions were affected more by site and time than by the mulch treatments. Our ongoing work includes evaluating the potential of regulated deficit irrigation to reduce irrigation water use in cider apple orchards and improve fruit quality attributes to achieve more desirable cider characteristics, determining irrigation thresholds to optimize the production of high-value spinach seed crops, and investigating the effect of variable soil organic matter on nitrogen supply for the soil and optimal nitrogen application rates in blueberries. Continued work on the impacts of long-term biosolids applications in no-till, dryland systems showed increases in microbially available carbon and nitrogen pools (i.e. active carbon and soil protein) at the soil surface with greater historical biosolids applications, but limited effects below 15 cm. However, there is a clear benefit of biosolids on crop yields compared to synthetic fertilizer. Additionally, we have evaluated alternative tillage practices (3 implements/passes vs. 1 spader pass) in raspberry alleyways for effects on compaction, saturated hydraulic conductivity, impacts on fungal-to-bacterial ratios, and carbon and nutrient stratification in the soil profile. Objective (4): To determine how root growth and development as well and phenotypically plastic root traits impact crop health and productivity. We investigated the impact of deficit irrigation on wine grape growth and quality parameters. Mainly, we found that direct root zone subsurface irrigation at 30, 60, and 90 cm depths did not have an impact on yield or quality, but did change root distribution in the upper 60 cm soil profile. We also found that the continuous root growth of perennial wheat root systems and successful over wintering of rhizomes is of paramount importance for successful development of viable perennial grass cropping systems. Moreover, we found evidence for the involvement of auxin transporters PIN2 and AUX1 in root growth inhibition in response to CBIs herbicides and upon destabilization of the cell wall.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Breslauer, R., D. Brown, W.L. Pan; D.R. Huggins; I.J. Madsen; H. Tao. 2019. Dense subsoils limit winter wheat rooting depth and soil water depletion. Agron. J. first look doi: 10.2134/agronj2019.03.0188
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Tao H, Pan WL, Carter P, Wang K. 2019. Addition of lignin to lime materials for expedited pH increase and improved vertical mobility of lime in no-till soils. Soil Use Manage. 35:314322. https://doi.org/10.1111/sum.12483
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Madsen, I.J. and W.L. Pan. 2019. Assessment of the relative potencies of N fertilizer sources on canola seedling root systems. Agron. J. 111:24452452. https://doi:10.2134/agronj2019.01.0039
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Sarah Waldo, Eric S. Russell, Kirill Kostyanovsky, Shelley N. Pressley, Patrick T. OKeeffe, David R. Huggins, Claudio O. St�ckle, William L. Pan, and Brian K. Lamb. 2019. N2O Emissions from Two Tillage Regimes: High Spatial Variability and Long Pulses Observed Using Static Chambers and the Flux-gradient Technique. Journal of Geophysical Research: Biogeosciences 7: 1887-1904. https://doi.org/10.1029/2019JG005032
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Nahar, K. and W. L. Pan. 2019. High resolution in situ rhizosphere imaging of root growth dynamics in oilseed castor plant (Ricinus communis L.) using digital scanners. Modeling Earth Systems and Environment, 5: 781792. First online https://doi.org/10.1007/s40808-018-0564-4
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Cong W, Miao Y, Xu L, Zhang Y, Yuan C, Wang J, Zhuang T, Lin X, Jiang L, Wang N, Ma J, Sanguinet KA, Liu B, Rustgi S, Ou X. (2019) Transgenerational Memory of Gene Expression Changes Induced by Heavy Metal Stress in Rice (Oryza sativa L.) BMC Plant Biology 19 (1); 282
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Ma X, Sanguinet KA, Jacoby P. (2019) Performance of direct root-zone deficit irrigation on Vitis vinifera Cabernet Sauvignon production and root distribution in southcentral Washington, Agricultural Water Management, 221, 47-57.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Brew-Appiah RAT, Peracchi LM, Sanguinet KA. (2019) Never the two shall mix: Robust indel markers to ensure the fidelity of two pivotal and closely-related accessions of Brachypodium distachyon, Plants, (8) 6: 153
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Zhang Z, Fu T, Lui Z, Wang X, Xun H, Li G, Ding B, Dong Y, Lin X, Sanguinet KA, Liu B, Wu Y. (2019) Extensive changes in gene expression and alternative splicing due to homeologous exchange in rice segmental allopolyploids, Theoretical and Applied Genetics, 132 (8); 22952308.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Clark I, Jones SS, Reganold JP, Sanguinet KA, Murphy KM. (2019) Agronomic performance of perennial grain genotypes in the Palouse region of the Pacific Northwest, USA, Frontiers in Sustainable Food Systems, 3, 39
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Lehman T, Sanguinet KA. (2019) Auxin and cell wall crosstalk as revealed by the Arabidopsis thaliana cellulose synthase mutant radially swollen 1, Plant and Cell Physiology, 60 (7): 1487-1503
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Brew-Appiah RAT, Sanguinet KA. (2018) Considerations of AOX functionality revealed by critical motifs and unique domains, International Journal of Molecular Sciences, 19(10), 2972
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Schlatter, D.C., Hansen, J.C., Schillinger, W.F., Sullivan, T.S., & T.C. Paulitz, 2019. Common and unique microbial communities in the rhizosphere of wheat and canola in a semiarid Mediterranean environment. Applied Soil Ecology, 144: 170-181.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Stacey, N., Lewis, R., Davenport, J., and T.S. Sullivan, 2019. Composted biosolids for golf course turfgrass management: Impacts on soil microbiome and nutrient cycling. Applied Soil Ecology, 144: 31-41.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Lewis, R., Islam, A., Dilla-Ermita, J.C., Hulbert, S.H., and T. S. Sullivan 2019. High-throughput siderophore screening from environmental samples: plant tissues, bulk soils, and rhizosphere soils. Journal of Visualized Experiments, Issue 144, e59137
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Lewis, R., Opdahl, L., Islam, A., Davenport, J., and T. S. Sullivan, 2019. Comparative genomics, siderophore production, and iron scavenging potential of root zone soil bacteria isolated from Concord grape vineyards. Microbial Ecology (DOI: 10.1007/s00248-019-01324-8).
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Sullivan, T.S., and G.M. Gadd, 2019. Metal bioavailability and the soil microbiome. Advances in Agronomy, Volume 155 (https://www.elsevier.com/books/advances-in-agronomy/sparks/978-0-12-817408-1).
- Type:
Book Chapters
Status:
Published
Year Published:
2019
Citation:
Hayes, D. G., M. B. Anunciado, J. M. DeBruyn, S. Bandopadhyay, S. Schaeffer, M. English, S. Ghimire, C. Miles, M. Flury, and H. Y. Sintim, Chapter 11: Biodegradable plastic mulch films for sustainable specialty crop production, in Polymers For Agri-Food Applications, edited by T. J. Gutierrez, Springer, 2019.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
Sullivan, T.S. (2019) Importance of Soil Microorganisms in Soil Health, Annual G.S. Long Company, Inc. Grower Meeting, Yakima, WA. Jan 22, 2019.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
Sullivan, T.S. (2019) The Role of Soil Biology in Soil Health, Columbia Conservation District Annual Meeting, Dayton, WA. Jan 17, 2019.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2018
Citation:
Sullivan, T.S. (2018) Soil Microbial Communities of Healthy and Chlorotic Vines, Washington State Grape Society Annual Meeting, Sunnyside, WA. Nov 2018.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
Haiying Tao, Katherine Naasko, Isaac Madsen, William L Pan. 2019. Soil Health Indicators for Dryland Production Systems in the Inland Pacific Northwest. SSSA International Meetings, San Diego, CA
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
Rachel Breslauer, Haiying Tao, David J. Brown, William L Pan. 2019. How Does Reduced Rooting Depth in Wheat Impact Use of Stored Soil Water? SSSA International Meetings, San Diego, CA
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2018
Citation:
Xiaochi Ma, Andrei Smertenko, Markus Keller, Pete Jacoby, Karen Sanguinet. 2018. Enhancing crop production and water conservation through direct root-zone irrigation strategy. American Society of Agronomy, Crop Science Society of America Annual Meeting. November 4-7. Baltimore, MD.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
LaHue, G.T., D.E. Griffin. Soil management for growing good fruit . Presentation to the Snohomish County Fruit Society, Snohomish, WA, September 12th, 2019. (Invited presentation)
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
G.T. LaHue, D.E. Griffin, D. Stranik. Soil health on the dairy. Soil health workshop for dairy farmers in Whatcom County put on in collaboration with the Whatcom County Conservation District, Lynden, WA, September 5, 2019. (Invited presentation)
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
LaHue, G.T.. Soil fertility and soil testing . Class Presented to Cloud Mountain Farm Centers internship program, Everson, WA, September 4th, 2019. (Invited presentation)
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
LaHue, G.T.. Irrigation and soil moisture . Class Presented to Cloud Mountain Farm Centers internship program, Everson, WA, September 4th, 2019. (Invited presentation)
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
G.T. LaHue, D.E. Griffin. Soil carbon and climate change. Presented to the Transition Fidalgo and Friends community group, Anacortes, WA, August 27, 2019.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2019
Citation:
Griffin, D.E., G.T. LaHue. Soil health challenges and opportunities in western Washington. Presented at the WSU Mount Vernon NWREC Field Day, July 11, 2019.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Shen, C., S. A. Bradford, M. Flury, Y. Huang, Z. Wang, and B. Li, DLVO interaction energies for hollow particles: The filling matters, Langmuir, 34, 1276412775, 2018.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Wang, Z., S. E. Taylor, P. Sharma, and M. Flury, Poor extraction efficiencies of polystyrene nano- and microplastics from biosolids and soil, PLoS ONE, 13, e0208009, doi.org/10.1371/journal.pone.0208009, 2018.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Yang, W., J. Shang, P. Sharma, B. Li, K. Liu, and M. Flury, Colloidal Yang, W., J. Shang, P. Sharma, B. Li, K. Liu, and M. Flury, Colloidal stability and aggregation kinetics of biochar colloids: Effects of pyrolysis temperature, cation type, and humic acid concentrations, Sci. Total Environ., 658, 13061315, 2019.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Wang, Z., and M. Flury, Effects of freezing-thawing and wetting-drying on heavy metal leaching from biosolids, Water Environ. Res., 91, 465-474, 2019.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Sintim, H. Y., S. Bandopadhyay, M. E. English, A. I. Bary, J. M. DeBruyn, S. M. Schaeffer, C. A. Miles, J. P. Reganold, and M. Flury, Impacts of biodegradable plastic mulches on soil health, Agric. Ecosystems Environ., 273, 3649, 2019.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Sintim, H. Y., A. I. Bary, D. G. Hayes, M. E. English, S. M. Schaeffer, C. A. Miles, A. Zelenyuk, K. Suski, and M. Flury, Release of micro- and nanoparticles from biodegradable plastic during in situ composting, Sci. Total Environ., 675, 686693, 2019.
|
Progress 10/02/17 to 09/30/18
Outputs
Target Audience:Target audiences: Scientific peers, Students, Environmental Engineering Industry, State and Federal Environmental Regulatory Agencies, Farmers, USDA, Plastic Producers, Organic Councils, General public, Conservation districts, Consultants, State Commodity Commissions. Efforts: We have reached out to target audience through a variety of means. Information obtained through our research and extension activities have been incorporated in formal education programs, such a classroom instruction, field days, extension classes, podcasts and workshops. We have provided internship opportunities for students in our laboratories, including high school students. Participants Tao and Pan, who have formal extension appointments, have spend considerable efforts in outreach and extension activities. Soil and nutrient management research findings and concepts were presented at Washington Oilseed Cropping Systems workshops and field days to over 200 producers and field consultants. We mentored 2 undergraduate research summer interns in an intense 9 week session designed to introduce students to soils research, and professional development. This program was supported by a USDA grant and administered by Dr. Johnson-Maynard at U Idaho. Presentations were made at conferences for viticulture and small fruits on nutrient management as well as on the impact of using poor quality irrigation water in degrading vineyard soils. These presentation provided outreach to grower in both eastern and western Washington as well as field consultants and members of commodity commissions. Presentations to three different audiences reached over 350 participants. We contributed to teaching of Soil Science 201 as well as in the classroom Vit_Enology 433 with 44 and 16 students, respectively. Oral presentations were made at the SSSA meeting in Nov 2017 on alternative sources of phosphorus in corn and dried bean production. We also presented work with high-school student interns each summer, and gave several outreach talks at Soil Acidity and Soil Health Workshops. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?We have provided training of high school students, undergraduate students, graduate students, and visiting scientists. We have also provided training to professionals (compost professionals, engineers, farmers, consultants) through workshops and field days. How have the results been disseminated to communities of interest?Journal articles have been published, research results have been presented at invited seminars and volunteered presentations at professional meetings. A compost workshop was held to educate and inform compost professionals on how to build compost and inform them about newest research results. Also, a lecture on root development and root system architecture was presented at the Healthy Soils Workshop, Feb 2018. What do you plan to do during the next reporting period to accomplish the goals?We will continue the work on the biodegradable plastic mulches and their impacts on soil quality. We will particularly look at the degradation of biodegradable plastics in soil and compost and quantify their environmental impact. We will also continue our work on the topic of plastics in biosolids and soils. Work on nitrogen effects on cropping systems in the Pacific Northwest will continue as well as the work on metal availability and the soil microbiome.
Impacts
What was accomplished under these goals?
Soils and plants, together with soil organisms, form the basis for US agriculture and urban development. In this project, we focus on processes and mechanisms in the soil-plant system and to determine how soil-plant interactions affect agricultural, urban, and natural ecosystems. Better understanding of soil-plant interactions is essential to maintain healthy soils and sustainable agricultural and urban systems. Our project has tested biodegradable plastic mulches, and we have shown that biodegradable plastic mulches do not negatively impact soil quality over a time period of two years. Biodegradable plastic mulches may be valuable alternatives to polyethylene mulch for specialty crop production. We also have evaluated the effects of climate change on crop production in the Pacific Northwest. Research in support of the use of canola in the Pacific Northwest has led to an increase in canola use in Washington state. We have further demonstrated that alternative nutrient sources can effectively be used in both agricultural and non-agricultural settings alike. In corn and dried bean, we found two organic sources of phosphorus (composted chicken manure and anaerobically digested dairy manure) were able to equally support yield and plant productivity. Additionally, our research has shown that composted biosolids can effectively be utilized as a source of nitrogen on golf course fairways with no impact to the aesthetic requirements of this highly managed environment. We also have characterized spring and winter wheat root systems and determined the impact of root growth traits on yield and drought responses. Objective (1): To identify and quantify mechanisms of flow and transport of water, energy, solutes, and colloids in the root zone and rhizosphere. We have quantified mechanisms of how biodegradable plastic mulches reduce water use in specialty crop production. Field experiments were conducted to assess water use of pumpkin plants when grown with biodegradable plastic mulches as ground cover. We found significant water conservation with the use of biodegradable plastics. At the same time, soil quality was measured and found not to be negatively affected within two years of use of the biodegradable plastics. We have also studied how earthworms interact with biodegradable plastics. We found that earthworms will drag plastic into their burrows, and ingest biodegradable plastic after the plastics has weathered to some extent. We have started experiments to study the interaction of plastic particles with plant roots. Plants were grown in Magenta boxes in the presence of plastic beads in the root zone. Uptake of plastic beads by plants is being investigated. So far, we have not detected plant uptake of plastic beads. Objective (2): To determine the role of the soil microbiome on metal and nutrient biogeochemistry. We examined whether the driest places on earth can be a habitat for an active microbial community or whether the microbes found at these locations are rather dormant or dead cells. From samples taken from the Atacama Desert, we found evidence for the presence of a periodically metabolically active, microbial community. We found that the microbial populations have undergone selection and adaptation in response to their specific soil micro-environment, and in particular to the degree of aridity. These results have implications for the prospect of life on other planets such as Mars. Objective (3): To develop management strategies to optimize water and nutrient supply, delivery, and uptake by plants while minimizing availability and uptake of toxic substances and particles. We have worked on promoting and developing measurement tools to quantify water flow and nutrient uptake by plants. Lysimeters are sophisticated devices to quantify and monitor water and chemical fluxes in the rhizosphere. A special issue on the use of lysimeters in vadose zone research has been edited. We have evaluated the impacts of nitrogen on uptake of silica by wheat. We continued our research on evaluating the suitability of canola as an oil seed crop in the Pacific Northwest and evaluated the opportunities for an increased role of winter crops as adaptation to climate change in dryland cropping systems of the Pacific Northwest. Given that there are limited reserves of mineral phosphorus, our research evaluated composted chicken manure and anaerobically digested dairy manure as alternatives to synthetic phosphorus nutrient sources. We demonstrated that commodity crops corn and dried bean can effectively be grown using the alternative nutrient sources while maintaining yield and quality. This short term research was not able to include an evaluation of changes in soil organic matter content, but it is possible that additional gains to soil health could be realized using the alternative nutrient sources. Our work in turf grass systems on golf courses showed that the use of composted biosolids can effectively provide nitrogen to the system without adversely affecting the aesthetics of this highly managed system. Objective (4): To determine how root growth and development as well and phenotypically plastic root traits impact crop health and productivity. We have examined both the impact of root traits and root system architecture on wheat root growth as well as determined that lignin content and monomer composition are potentially important traits for both abiotic and biotic stress tolerance. In addition, we have characterized the SALP and ALTERNATIVE OXIDASE (AOX) families in wheat and their role in abiotic stress, particularly in the context of roots.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Schulze-Makuch, D., et al. A transitory microbial habitat in the hyperarid Atacama Desert, Proc. Natl. Acad. Sci. USA, 115, 26702675, 2018.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Zhang, L., H. Y. Sintim, A. I. Bary, D. G. Hayes, L. C. Wadsworth, M. B. Anunciado, and M. Flury, Ingestion and transport of polyethylene and biodegradable plastic mulch by Lumbricus terrestris, Sci. Total Environ., 16001608, 2018.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Putz, T., J. Fank, and M. Flury, Lysimeters in vadose zone research, Vadose Zone J., 17, 180035, doi:10.2136/vzj2018.02.0035, 2018.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Saglam, M., H. Y. Sintim, A. I. Bary, C. A. Miles, S. Ghimire, D. A. Inglis, and M. Flury, Modeling the effect of biodegradable paper and plastic mulch on soil moisture dynamics, Agric. Water Manage., 193, 240250, 2017.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Beard, T.; Maaz, T., Borrelli, K.; Harsh, J. and Pan, W. 2018. Nitrogen impacts wheat and canola silica accumulation, soil silica forms and crusting. J Env. Qual. doi:10.2134/jeq2018.01.0052.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Chi, J.,, Waldo, S., Pressley, S. N., Russell, E. S., OKeeffe, P. T., Pan W. L., Huggins, D. R., St�ckle, C. O., Brooks, E. S., and Lamb, B. K. 2017. Effects of Climate Conditions and Management Practices on Agricultural Carbon and Water Budgets in the Inland Pacific Northwest USA. JGR-Biogeosciences 65 (48), 1042910438.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Hammac, A.H., T.M. Maaz, R.T. Koenig, I.C. Burke, W.L. Pan. Water, temperature, and nitrogen effects on canola (Brassica napus L.) yield, protein, and oil. 2017. Journal of Agriculture and Food Chemistry 65: 1042910438.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Maaz, T. M., W. Schillinger, S. Machado, E. Brooks, , J. Maynard-Johnson, I. L. E. Young, , F. L. Young, I. Leslie, A. Glover, I. J. Madsen, A. Esser, H. Collins, , and W.L. Pan. 2017. Impact of Climate Change Adaptation Strategies on Winter Wheat and Cropping System Performance across Precipitation Gradients in the Inland Pacific Northwest, USA. Front. Environ. Sci. Available on line: https://doi.org/10.3389/fenvs.2017.00023.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Pan, W. L., Schillinger, W. F., Young, F. L., Kirby E. M., Yorgey, G. G., Borrelli, K. A., Brooks, E. S., McCracken, V. A., Maaz, T. M., Machado, S., Madsen, I. J., Johnson-Maynard, J. L, Port L. E., Painter, K., Huggins D. R., Esser, A. D., Collins, H. P., Stockle, C. O. and Eigenbrode, S. D. 2017. Integrating historic agronomic and policy lessons with new technologies to drive farmer decisions for farm and climate: The case of inland Pacific Northwestern U.S. Frontiers in Environmental Science doi: 10.3389/fenvs.2017.00076.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Port L.E., F.L.Young and Pan W.L. 2017. Managing high-residue no-till fallow in the low-rainfall zone of the Pacific Northwest. Crop, Forage & Turfgrass Management 3:2017-03-0024.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Pan W.L., L.E. Port, Y. Xiao, A.I. Bary and C.G. Cogger. 2017. Soil carbon and nitrogen fractionation balances during long-term biosolids applications. Soil Science Society of America Journal, doi: 10.2136/sssaj2017.03.0075.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Maaz, T. and W.L. Pan. 2017. Residual fertilizer and crop sequence impact rotational nitrogen use efficiency. Agron. J. 109: 6: 2839-2862.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Maaz, T.M., J.D. Wulfhorst, V. McCracken, H. Kaur, I. Roth, D. Huggins, A. Esser, J. Kirkegaard, W. Pan. 2017. Economic, policy, and social challenges of introducing oilseed and pulse crops into dryland wheat rotations. Agriculture, Ecosystems and Environment. http://www.sciencedirect.com/science/article/pii/S016788091730138X
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
St�ckle CS, Higgins S, Nelson R, Abatzoglou J, Huggins D, Pan W, Karimi T, Antle J, Eigenbrode S and Brooks E. 2017. Evaluating opportunities for an increased role of winter crops as adaptation to climate change in dryland cropping systems of the U.S. Inland Pacific Northwest. Climate Change doi:10.1007/s10584-017-1950-z.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Chi, J., Waldo, S., Pressley, S. N., Russell, E. S., OKeeffe, P. T., Pan, W. L. Lamb, B. K. 2017. Effects of climatic conditions and management practices on agricultural carbon and water budgets in the inland Pacific Northwest USA. Journal of Geophysical Research: Biogeosciences, 122, doi.org/10.1002/2017JG004148.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Peters, R. T., and M. Flury. 2017. Variable Rate Irrigation on Center Pivots. What Is It? Should I Invest? Proceedings, 2017 Western Alfalfa and Forage Symposium, Reno, NV, Nov 28-30, 2017. University of California Cooperative Extension, Agronomy Research and Information Center, Plant Sciences Department, University of California, Davis, CA 95616.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Badr, G., G. Hoogenboom, M. Moyer, K. Keller, R. Rupp, and J. Davenport. 2018. Spatial suitability assessment for vineyard site selection based on fuzzy logic. Precision Agric. published online doi: https://doi.org/10.1007/s11119-018-9572-7.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Granatstein, D., J. R. Davenport, and E. Kirby. 2017. Growing legumes in orchard alleys as an internal nitrogen source. HortScience 52: 1283-1287.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Lewis, R. W., M. K. LeTourneau, J. R. Davenport, and T. S. Sullivan. 2018. Concord grapevine nutrition status and chlorosis rank associated with fungal and bacterial root zone microbiomes. Plant Phys. Biochem. 129: 429-436.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Stout, J. E., R. T. Peters, and J. R. Davenport. 2017. Deficit Irrigation in Vitis labruscana Bailey 'Concord' in Central Washington. HortScience 52: 450-456.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Brew-Appiah RAT, Sanguinet KA. (2018) Considerations of AOX Functionality Revealed by Critical Motifs and Unique Domains, International Journal of Molecular Sciences, 19(10), 2972.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Brew-Appiah RAT, York ZB, Krishnan V, Roalson EH, Sanguinet KA. (2018) Genome-wide identification and analysis of the ALTERNATIVE OXIDASE gene family in diploid and hexaploid wheat, PLoS One, e0201439.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Martinez S, Thompson A, Wen N, Murphey L, Sanguinet KA, Steber C, Garland-Campbell K (2018) Registration of the Louise/Alpowa Wheat Recombinant Inbred Line Mapping Population, Journal of Plant Registrations doi:10.3198/jpr2017.08.0053crmp.
- Type:
Journal Articles
Status:
Submitted
Year Published:
2018
Citation:
Hansen, J.C., Schillinger, W.F., Sullivan, T.S., & T.C. Paulitz. Soil microbial community response with canola introduced into a long-term monoculture wheat rotation. Soil Science Society of America Journal.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Sullivan, T.S., and G.M. Gadd (2018). Metal bioavailability and the soil microbiome. Advances in Agronomy, 2018.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Lewis, R., LeTourneau, M.K., Davenport, J. & T.S. Sullivan, 2018. Concord grapevine nutritional status and chlorosis rank associated with fungal and bacterial root zone microbiomes. Plant Physiology and Biochemistry (doi: 10.1016/j.plaphy.2018.06.011).
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