Progress 10/01/20 to 09/30/21
Outputs Target Audience:The target audience includes researchers, scientists, extension agents, students at all levels, farmers, producers, urban homeowners, gardeners, irrigation and landscaping professionals, and allied industry. Changes/Problems:The COVID-19 pandemic was a major challenge and has affected the program in several ways. What opportunities for training and professional development has the project provided?Three Ph.D. students are currently conducting their research. The students are at different stages of their academic program. Two OPS personnel, one research technician, and one visiting scholar were involved in several project activities. Graduate students were trained in writing refereed manuscripts, extension factsheets, conference abstracts, and preparing oral and poster presentations. Graduate students were involved in more than ten conference abstracts and presentations and writing two extension factsheets. How have the results been disseminated to communities of interest?Project results were disseminated using different venues including journal publications, scientific society meetings, extension journals and factsheets, and extension workshops and training. Twelve refereed manuscripts and eight extension factsheets were published. In addition, ten conference abstracts and presentations were given, and several extension training and workshops were conducted. What do you plan to do during the next reporting period to accomplish the goals?Continue conducting research in the area of water resources engineering and developing effective soil and water management practices that conserve water and protect water quality. Specifically, continue working on the second-year research for two USDA/NIFA projects. In addition, continue advising/mentoring graduate students in conducting research, writing, and publishing refereed manuscripts, and giving research presentations.
Impacts What was accomplished under these goals?
A linear move variable rate irrigation (VRI) system was established on a 1-acre field at the Tropical Research and Education Center (TREC). The system allows conducting precision irrigation experiments at a plot scale. Thirty-two experimental, equipped with different types of sensors that allow continuous monitoring of soil, water, plant properties, were established. Two USDA/NIFA funded projects are currently being conducted. The first project aims to develop a technique that allows quantifying plot/field-scale evapotranspiration rates for green beans and sweet corn by integrating data from different sources. For this project, time-series data were collected for soil moisture, recharge, stomatal conductance, chlorophyll, canopy temperature, and several other crop parameters. In addition, drone images were collected. The second project investigates the multifaceted impacts of soil salinity on soil health, greenhouse gas emission, and nutrient leaching from two agricultural soils in South Florida.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2021
Citation:
Getachew, F., H.K. Bayabil, G. Hoogenboom, F.T. Teshome, and E. Zewdu. 2021. Irrigation and shifting planting date as climate change adaptation strategies for sorghum. Agricultural Water Management. 255:106988. https://doi.org/10.1016/j.agwat.2021.106988.
- Type:
Journal Articles
Status:
Published
Year Published:
2021
Citation:
Bayabil, H.K., L. Vasquez, L. Lomeli, and P. Martin. 2021. Lessons from a Landscape Irrigation Rebate Program in Miami Dade County. Journal of Extension. Journal of Extension. 59(2) 12. 10.34068/joe.59.02.13
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Teshome, F.T., H.K. Bayabil, L.N. Thakural, and F.G. Welidehanna. 2020. Verification of the MIKE11-NAM Model for Simulating Streamflow. Journal of Environmental Protection. 11/02: 152. http://www.scirp.org/journal/Paperabs.aspx?PaperID=98554
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Bayabil, H.K, A. Fares, H.O. Sharif, D.T. Ghebreyesus, and H.A. Moreno. 2019. Effects of Spatial and Temporal Data Aggregation Scales on the Performance of the Multi-Radar Multi-Sensor System. Journal of American Water Resources Association. 1-13. https://onlinelibrary.wiley.com/doi/epdf/10.1111/1752-1688.12799
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Kebrom, T.H., S. Woldesenbet, H.K. Bayabil, M. Garcia, M. Gao, P. Ampim, R. Awal, and A. Fares. 2019. Evaluation of Phytotoxicity of Three Organic Amendments to Collard Greens Using the Seed Germination Bioassay. Environmental Science and Pollution Research. https://doi.org/10.1007/s11356-018-3928-4
- Type:
Other
Status:
Published
Year Published:
2020
Citation:
Bayabil, H.K., J.H. Crane, K.W. Migliaccio, Y. Li, F.H. Ballen, and S. Guzman. 2020. Programaci�n de Riego Basado en el M�todo de Evapotranspiraci�n Para Papaya (Carica papaya) en Florida. University of Florida IFAS Extension Publication #AE547. 2020/6: https://edis.ifas.ufl.edu/ae547
- Type:
Journal Articles
Status:
Published
Year Published:
2021
Citation:
Teklay, A., Y.T. Dile, D.H. Asfaw, H.K. Bayabil, and K. Sisay. 2021. Impacts of Climate and Land Use Change on Hydrological Response in Gumara Watershed, Ethiopia. Ecohydrology & Hydrobiology. 21(2) 315-332. doi.org/10.1016/j.ecohyd.2020.12.001.
- Type:
Journal Articles
Status:
Published
Year Published:
2021
Citation:
Li, T., Z. Tong, Y. Li, B. Gao, S. Meng, and H.K. Bayabil. 2021. Characterization of Residues from Non-woody Pulping Process and its Function as Fertilizer. Chemosphere. 262, 127906. doi.org/10.1016/j.chemosphere.2020.127906.
- Type:
Journal Articles
Status:
Published
Year Published:
2021
Citation:
Awal, R., A. El Hassan, F. Abbas, A. Fares, H.K. Bayabil, R. L. Ray, S. Woldesenbet. 2021. Patterns of Nutrient Dynamics within and below the Rootzone of Collard Greens Grown under Different Organic Amendment Types and Rates. Sustainability. 13(12) 6857. https://doi.org/10.3390/su13126857
- Type:
Journal Articles
Status:
Published
Year Published:
2021
Citation:
Li, T., Z. Tong, B. Gao, Y. Li, A.R. Smyth, and H.K. Bayabil. 2020. Polyethyleneimine Modified Biochar for Enhanced Phosphate Adsorption. Environmental Science and Pollution Research, 27(7) 7420-7429.
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Teshome, F.T., H.K. Bayabil, L.N. Thakural, and F.G. Welidehanna. 2020. Modeling Stream Flow Using SWAT Model in the Bina River Basin, India. Journal of Water Resource and Protection. 12/03: 203. http://www.scirp.org/journal/Paperabs.aspx?PaperID=98682
- Type:
Other
Status:
Published
Year Published:
2020
Citation:
Bayabil, H.K., K.W. Migliaccio, M.D. Dukes, and L. Vasquez. 2020. Basic Tips for Designing Efficient Irrigation Systems. University of Florida IFAS Extension. Publication #AE539. 2020/1: https://doi.org/10.32473/edis-ae539-2020
- Type:
Other
Status:
Published
Year Published:
2020
Citation:
Qiu J., H.K. Bayabil, and Y. Li. 2020. Indoor Vertical Farming Systems for Food Security and Resource Sustainability. University of Florida IFAS Extension. Publication #FOR360/FR429. 2020/2: https://doi.org/10.32473/edis-fr429-2020
- Type:
Other
Status:
Published
Year Published:
2020
Citation:
Bayabil, H.K., J.H. Crane, K.W. Migliaccio, Y. Li, and F.H. Ballen. 2020. ET-Based Irrigation Scheduling for Papaya (Carica papaya) in Florida. University of Florida IFAS Extension. Publication #AE499. 2020/2: https://doi.org/10.32473/edis-ae540-2020
- Type:
Other
Status:
Published
Year Published:
2020
Citation:
Bayabil, H.K., K.W. Migliaccio, M.D. Dukes, L. Vasquez, and y C. Balerdi. 2020. Consejos Basicos para Dise�ar Sistemas Eficientes de Riego. University of Florida IFAS Extension. Publication #AE549. https://edis.ifas.ufl.edu/ae539
- Type:
Conference Papers and Presentations
Status:
Other
Year Published:
2021
Citation:
Bayabil, H.K., F.T. Teshome, F.G. Welidehanna. 2021. Soil Moisture and Canopy Temperature Dynamics of Sweet Corn and Green Beans Under Variable Rate Irrigation. Florida Section American Society of Agricultural and Biological Engineers (FL ASABE) Annual Meeting. June 09-12, 2021. Daytona Beach Shores, FL.
- Type:
Conference Papers and Presentations
Status:
Other
Year Published:
2020
Citation:
Bayabil, H.K., J. Zhang, Y. Li, and F.T. Teshome. 2020. Effects of Organic Amendments on Evaporation Characteristics of Drying Soils. American Society of Agricultural and Biological Engineers (ASABE) Annual International Meeting. Virtual. Jul 13, 2020 - Jul 15, 2020.
- Type:
Conference Papers and Presentations
Status:
Other
Year Published:
2020
Citation:
Bayabil, H.K., K.W. Migliaccio, J.H. Andreis, and F.T. Teshome. 2020. Verification of the Dark Weather Forecast Skills over Florida and Georgia. American Society of Agricultural and Biological Engineers (ASABE) Annual International Meeting. Virtual. Jul 13, 2020 - Jul 15, 2020.
- Type:
Other
Status:
Published
Year Published:
2020
Citation:
Crane, J.H., H.K. Bayabil, E.A. Evans, and F.H. Ballen. 2020. Irrigation System Descriptions for Tropical and Subtropical Fruit Crops in Florida. University of Florida IFAS Extension. Publication #HS1375. 2020/5: https://edis.ifas.ufl.edu/hs1375
- Type:
Other
Status:
Published
Year Published:
2020
Citation:
Bayabil, H.K., K.W. Migliaccio, J.H. Crane, T. Olczyk, and Q. Wang. 2020. Regulations and Guidelines for Chemigation. University of Florida IFAS Extension. Publication AE542/AE542. 2020/4:
- Type:
Conference Papers and Presentations
Status:
Other
Year Published:
2020
Citation:
Bayabil, H.K., F.T. Teshome, and B. Schaffer. 2020. Effects of Irrigation Level on Water Use and Yield of Sweet Corn Cultivars. AWRA Annual Water Resources Conference. Virtual. November 9-12, 2020.
- Type:
Conference Papers and Presentations
Status:
Other
Year Published:
2020
Citation:
Getachew, F., C. Nendel, T. Stella, M. Berg, M. Lana, and H.K. Bayabil. 2020. Modeling Effects of Climate Change and Variability on Sorghum Yield in Ethiopia. UF Water Institute Conference, Ginsville, Florida. February 25-26, 2020.
- Type:
Conference Papers and Presentations
Status:
Other
Year Published:
2020
Citation:
Teshome, F.T., H.K. Bayabil., and F.G. Welidehanna. 2020. Evaporation Trends over South Florida. AWRA Annual Water Resources Conference. Virtual. November 9-12, 2020.
- Type:
Conference Papers and Presentations
Status:
Other
Year Published:
2019
Citation:
Bayabil, H.K., and Y.T. Dile. 2019. Effects of Spatial Data Resolution on Hydrologic Simulations. FL-ASABE, Delray Beach, Florida.
- Type:
Conference Papers and Presentations
Status:
Other
Year Published:
2019
Citation:
Bayabil, H.K., L. Vasquez, J. Lomeli, and P. Martin. 2019. Performance of ET-Based Irrigation Controller in Reducing Outdoor Water Use. FL-ASABE, Delray Beach, Florida.
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Progress 10/01/19 to 09/30/20
Outputs Target Audience:• Researchers, scientists, extension agents, and students at all levels • Farmers, producers, urban dwellers/ gardeners, and industry people • Local, state, federal agencies (e.g., USDA, FDACS, EPA, etc.) • Academic institutions, e.g., Colleges and Universities Changes/Problems:The COVID-19 pandemic was a major challenge that hindered our research progress in many ways. What opportunities for training and professional development has the project provided?Two Ph.D. students currently conducting their research projects that contribute to the overall goal of this project. In addition, one research scientist was actively involved in managing daily project activities. An OPS person has been trained with different equipment and data collection techniques. How have the results been disseminated to communities of interest?Results were disseminated to the wider scientific community at conferences and professional society meetings such as the American Society of Agricultural and Biological Engineers (ASABE) and the American Water Resources Association (AWRA) annual meetings. Graduate students also presented their work. In addition,several in-service training for extension agents and extension presentations were given to board audiences including extension agents, growers, and homeowners. Topics of presentations cover integrating science and smart technologies for water conservation and water quality, irrigation scheduling techniques, and basic concepts of soil-water-plant relationships and advances in smart irrigation systems and technologies. What do you plan to do during the next reporting period to accomplish the goals?We planto continue conducting novel and exciting research on the integration of science and technology for precision irrigation management with the development of environmentally sound and effective water management practices including smart irrigation technologies and nutrient management practicesthat reduce agricultural inputs such as water, fertilizer, and pesticides and allow the efficient utilization of available freshwater resources for crop production and landscape maintenance. Research areas includevariable rate irrigation, water conservation, water quality, soil hydrology, soil moisture sensing, crop water stress, evapotranspiration, crop coefficients, drones, wired and wireless sensors, smart timers/controllers, and data analytics.
Impacts What was accomplished under these goals?
A study was conducted to investigate the effects of irrigation level on evapotranspiration, growth, and yield of three sweet corn cultivars (1170, 8021, and Battalion) commonly grown in south Florida. The experiment was conducted under a drip system using 3.79-liter containers. Three irrigation treatments were applied. Daily evapotranspiration (ET) rates were determined using a digital scale. Leaf chlorophyll index was measured twice a week with a SPAD meter. Stomatal conductance was also measured with a leaf porometer. Above-ground biomass and leaf area were measured from harvested plants in each treatment, three times during the experiment. In addition, a 4-year study funded byUSDA/NIFA started in Fall 2020. The project aims to develop a technique that allows quantifying evapotranspiration rates at field and plot scales by integrating data from multiple sources from both ground and aerial measurements; and evapotranspiration, hydrologic, and crop models. The first experiment was started in December 2020 on green beans and sweet corn under a variable rate irrigation system. Data collection includes soil moisture, recharge, stomatal conductance, chlorophyll, canopy temperature, and several other crop parameters. Drone images are also being collected daily using infrared thermal and multispectral sensors. Since irrigation management heavily relies on data astudy was started to investigate the reliability of the DarkSky (©Apple inc.) weather forecast data as inputs for irrigation scheduling and water resource management decision making. The study aims toverify the accuracy of the forecast data based on daily weather forecast observations at 124 weather stations distributed across Florida and Georgia.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Bayabil, H.K., and Dile, Y. 2020. Improving Hydrologic Simulations Through Soil Data Integration. water. 12/10: 10.3390/w12102763
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Tebebu, T.Y., H.K. Bayabil, and Steenhuis, T.S. 2020. Can Degraded Soils be Improved by Ripping Through the Hardpan and Liming? A Field Experiment In The Humid Ethiopian Highlands. Land Degradation & Development. https://doi.org/10.1002/ldr.3588
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Bayabil H.K., Y. Li, Z. Tong, and B. Gao. 2020. Potential Management Practices of Saltwater Intrusion Impacts on Soil Health and Water Quality: A Review. Journal of Water and Climate Change. jwc2020013: https://doi.org/10.2166/wcc.2020.013
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Progress 10/16/18 to 09/30/19
Outputs Target Audience:During this reporting period, this project reached a diverse target audience including stakeholders (e.g., growers, producers, urban dwellers/ gardeners, and industry people), researchers, scientists, extension agents, and students at all levels and the general public. Different approaches (e.g., workshops, grower meetings, and seminars) were used to present information from ongoing studies. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?
Nothing Reported
How have the results been disseminated to communities of interest?Preliminary data and results were communicated with stakeholders at the 2019 Urban Landscape Summit at the University of Florida and the Florida Section American Society of Agricultural and Biological Engineers (FLASABE) annual meeting. A Soil and Water BMPs workshop was also organized at the Tropical Research and Education Center targeting nursery growers. What do you plan to do during the next reporting period to accomplish the goals?
Nothing Reported
Impacts What was accomplished under these goals?
Greenhouse experiment investigated changes in evaporation characteristics of drying soils as a result of different organic amendment types and rates. The experiment was completed, and a manuscript is at a final stage for submission for peer-review publication. Effectiveness of smart irrigation controllers in reducing outdoor water consumption was investigated by analyzing water consumption data from properties retrofitted with smart controllers through an irrigation rebate program developed by the UF/IFAS Extension Miami-Dade County's Florida Yards and Neighborhoods (FYN) program and Miami-Dade County through the Water and Sewer Department. Amanuscript is submitted for publication in the Journal of Extension. In addition, the effect of potting media types and mixing ratios on water retention and leaching were investigated. A Soil and Water BMPs workshop was organized at the Tropical Research and Education Center to share the results with nursery growers.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Bayabil, H.K., Y.T. Dile, T.Y. Tebebu, T.A. Engda, and T.S. Steenhuis. 2019. Evaluating Infiltration Models and Pedotransfer Functions: Implications for Hydrologic Modeling. Geoderma. 338: 159-169. https://doi.org/10.1016/j.geoderma.2018.11.028
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Teklay, A.(g), Y.T. Dile, D.H. Asfaw, H.K. Bayabil, and K. Sisay. 2019. Impacts of land surface model and land use data on WRF model simulations of rainfall and temperature over Lake Tana Basin, Ethiopia. Heliyon. 5(9)e02469:
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