Progress 07/11/14 to 06/30/19
Outputs
Target Audience:Potato growers, Agricultural consultants, Extension Agronomists, and Research agronomists. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?My research associate and research aids have learned that in potato production, best management practices are varietal dependent. How have the results been disseminated to communities of interest?Presentations were made to potato growers, field consultants, extension agronomists, and other agro-industry personnel at local, regional, and national meetings. Results of the project have been posted on the potato program website of Colorado State University. Some of the results have been published in peer reviewed journals, local grower newsletters, and in potato grower magazines such as the potato grower and the spudman magazine. What do you plan to do during the next reporting period to accomplish the goals?
Nothing Reported
Impacts
What was accomplished under these goals?
From 2014-2019, a lot of research studies were conducted to develop optimum cultivar specific management guidelines for potato production in Colorado. Deficit irrigation studies were conducted during this period. It was observed that irrigation water use could be reduced by 18 and 15% for maximum tuber yield of early and medium maturity potato cultivars, respectively. Potato cultivars are unique in their response to the quantity of nitrogen (N) fertilizer applied during the growing season. Under application or over application can result in reduced yields and problems with tuber quality both at harvest and in storage. Optimum nitrogen application rates need to be established for new potato cultivars so they can achieve their genetic yield and quality potential. optimum N application rates have been established for some new potato cultivars. For Russet cultivar CO05068-1RU, N application rate of 202 Kg/ha produced economically maximum tuber yields. Total and marketable tuber yields increased by 21% and 32%, respectively, when compared to the control treatment. For Russet cultivar AC05039-2RU, total and marketable tuber yield increased by 12% and 9%, respectively, when 134 kg/ha N fertilizer was applied for the whole season. Data from these studies indicate that with the appropriate rate of N fertilizer applied, growers are able to maximize their profits from potato farming. N uptake is more efficient, and there is minimum potential of N leaching into ground and surface waters. Plant population management can influence tuber yield and tuber size distribution of potatoes. Depending on the kind of market a farmer is targeting, the potato farmer will have to plant his seed at a certain optimum population per hectare in order to produce the required tuber size for that market. Studies were conducted to evaluate the effect of in-row seed spacing on tuber yield, tuber size distribution, and tuber quality of new potato cultivars. Average of 2 years studies for Russet cultivar CO05068-1RU indicated that maximum total and marketable size tuber yields were obtained when seed potato was planted at 35 cm intervals within rows. The average yield increases were, 4% and 6.5%, for total and marketable size tuber yields, respectively, when compared to planting at 30 cm in-row seed spacing. For the cultivar CO-05037-3W/Y, maximum marketable and large marketable tuber yields were obtained when potato seed was planted at 40 cm intervals within rows. The yield increase was 22% and 55% for marketable and large marketable size tuber, respectively, when compared to planting at in-row spacing of 30 cm. No internal or external defects were observed in the tubers when planted at the optimum in-row seed spacing. Planting at 35 or 40 cm in-row seed spacing reduced the quantity of seed planted per hectare, as compared to planting at 30 cm in-row seed spacing. Input cost of seed planted was reduced. Farmers profit margins are increased, and the economic activity of the rural population is increased. Different potato cultivars respond differently to nitrogen fertilizer application timing. It was observed that for maximum tuber yield and quality of medium to late maturity Russets, 33% of the required nitrogen (N) fertilizer should be applied pre-plant, and the remaining required N fertilizer applied in four split applications, beginning from tuber formation. For early maturity russets, 66% of the required N should be applied pre-plant, and the remaining N requirement applied in three split applications after tuber formation. The use of potassium acetate as source of potassium fertilizer increased marketable and premium size tuber yield of potatoes by 22 and 58%, respectively, when compared to potash (KCl) application, which is the conventional source of potassium fertilizer used by potato farmers. The conventional form of nitrogen (N) fertilizer used in potato production is mostly in the liquid form. Liquid fertilizers when applied need to be used by the plant within a short period of time, otherwise the applied fertilizer has the potential of being leached into ground waters or surface waters, or the potential of being lost through volatilization. Liquid fertilizers have to be applied frequently during the growing season for the plant to obtain the needed amount of nutrients. This method of fertilizer application is time consuming, expends farm energy, and adds to input cost. Controlled release fertilizers are applied only once, either before planting or at planting, and slowly releases plant nutrients during the growing season to meet crop demand. Studies were conducted to evaluate the response of Russet potato to different rates of controlled release fertilizers as compared to conventional liquid fertilizers. Application of 75% of the full rate of slow release fertilizer increased total and marketable tuber yields by 18 and 15%, respectively, when compared to liquid fertilizer application.
Publications
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Essah, SYC. 2015. Nitrogen fertilizer management for efficient utilization in potato production. In: Proceedings of the World Congress of Agriculture Conference (parallel forum of WGC - 2015), November 13-15, Qingdao, China.
- Type:
Journal Articles
Status:
Published
Year Published:
2014
Citation:
Essah, SYC. 2014. Air injection of drip irrigated water improves potato performance in the field. Am. J. Potato Res. 91:45
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Essah, SYC and DG Holm. 2014. Timing of nitrogen fertilizer application for increased N-Use efficiency in potato production. In: Annual meeting abstracts. Potato Association of America.
- Type:
Websites
Status:
Published
Year Published:
2019
Citation:
Essah, SYC. 2019. Application of phosphorus fertilizer with 'Nutricharge' improves potato tuber yield and phosphorus use efficiency. www.potatoes.colostate.edu
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Essah, SYC and DG Holm. 2019. Response of russet potato to compost application rate with optimum or reduced nitrogen application. Am. J. Potato Res. 96:332
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2018
Citation:
Essah, SYC. 2018. Reducing irrigation water and nitrogen fertilizer use in irrigated potato production systems. In: Proceedings. International conference and Expo on Agriculture and Horticulture. August 13-14, 2018. Amsterdam, Netherlands. page 18.
- Type:
Other
Status:
Other
Year Published:
2019
Citation:
Essah, SYC. 2019. Colorado potato cultivar management guidelines for improved tuber yield and quality. Summary of 2018 Research report. www.potatoes.colostate.edu
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Essah, SYC, AA Andales, and T Bauder. 2017. Deficit irrigation in early and medium to late maturity potato cultivars. Am. J. Potato Res. 94:221.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Essah, SYC, A. Andales, T. Bauder, and DG Holm. 2017. Response of three Colorado potato cultivars to deficit irrigation. In: Annual meeting abstracts. Potato Association of America. July 23-27, 2017. Holiday Inn, Fargo, ND. page 75
- Type:
Journal Articles
Status:
Published
Year Published:
2016
Citation:
Essah, SYC. 2016. Dry matter and fresh tuber yield performance of a new Colorado potato cultivar as influenced by nitrogen application rate and pre-plant nitrogen application. Am. J. Potato Res. 93:129.
- Type:
Websites
Status:
Published
Year Published:
2016
Citation:
Essah, SYC. 2016. Pre-plant potassium application improves yields. The spudman magazine (spudman.com). November/December issue. 54:36-37.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Essah, SYC. 2016. Proper timing of nitrogen fertilizer application can increase tuber yield and quality performance of irrigated potato. In: Annual meeting abstracts. Potato Expo Program directory. page 26. January 12-14, 2016. The mirage Hotel, Las Vegas, NV.
- Type:
Journal Articles
Status:
Published
Year Published:
2015
Citation:
Essah, SYC and DG Holm. 2015. Timing of nitrogen fertilizer application in potato production of new russets from Colorado State University. Am. J. Potato Res. 92:187.
|
Progress 10/01/17 to 09/30/18
Outputs
Target Audience:Potato Growers, Agricultural Consultants, Extension Agronomists, and Research Agronomists. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?My research associate and research aids have learned that in potato production, best management practices are varietal dependent. How have the results been disseminated to communities of interest?Presentations were made to potato growers, field consultants, extension agronomists, and other agro-industry personnel at local, regional, and national meetings. Results of the project have been posted on the Colorado State University Potato Program Website. What do you plan to do during the next reporting period to accomplish the goals?Continue to develop cultural management guidelines for new potato cultivars that are being developed from the Colorado potato breeding program. Conduct research on phosphorus fertilization and its economic implications in potato production. Conduct research on potassium use efficiency in potato production in the San Luis Valley
Impacts
What was accomplished under these goals?
Potato cultivars are unique in their response to the quantity of nitrogen fertilizer applied. Under application or over application can result in reduced yields and problems with tuber quality both at harvest and in storage. Optimum nitrogen application rates need to be established for new potato cultivars so they can achieve their genetic yield and quality potential after they are released to farmers. Two new potato cultivars from the Colorado State University potato breeding program (CO05068-1RU and AC05039-2RU) which were evaluated in 2017 were evaluated for a second year in 2018, for their response to nitrogen application rate. Treatments ranged from 0 kg/ha applied nitrogen to 269 kg/ha applied nitrogen.In 2018, maximum economic tuber yieldsof AC05039-2RU and CO05068-1RU were obtained when 201 kg/ha nitrogen fertilizer was applied. Total, marketable, and premium size tuber yields were increased by 19%, 22%, and 105%,respectively, when 201 Kg/ha nitrogen fertilizer was applied tocultivar AC05039-2RU.Yield increases for CO05068-1RU were 30%, 32%, and 27%, for total, marketable, and premium size tuber yields respectively, when compared to the control treatment of 0 kg/ha application of nitrogen. Observations made in this study emphasize the importance of repeated field studies to optimize fertilizer applications for optimum tuber yield and increased economic returns to the farmer. Timing of nitrogen fertilizer application is as important as the rate of application in potato production. A repeated study was conducted to evaluate the effect of nitrogen application timing on the performance of potato cultivar CO05068-1RU. Treatments included a) application of all required nitrogen fertilizer pre-plant b) All required nitrogen fertilizer applied during the growing season (after tuber formation) c) 33% of required nitrogen fertilizer applied pre-plant, and the remainder applied during the growing season d) 50% of the required nitrogen fertilizer applied pre-plant, and the remainder applied during the growing season e) 66% of the required nitrogen fertilizer applied pre-plant, and the remianing required nitrogen fertilizer applied during the growing season.The average of two years studies indicated that maximum economic tuber yields were obtained when 50% of the required nitrogen fertilizerwas applied pre-plant, and the remaining fertilizer applied during the growing season, in split applications. When nitrogen fertilizer application was timed in this manner, total and marketable tuber yields were increased by 13% and 11%, respectively, when compared to applying all the nitrogen fertilizer pre-plant. When 50% of nitrogen fertilizer was applied pre-plant, and the remaining fertilizer applied in split application after tuber formation, it was observed that the high yielding potatoeswere of high quality, with high specific gravity, and no external or internal tuber defects. Plant population management can influence tuber yield and tuber size distribution of potatoes. Depending on the kind of market a farmer is targeting, the potato farmer will have to plant his seed at a certain optimum population per hectare in order to meet the requirements of that specific market. Studies were conducted to evaluate the effect of in-row seed spacing on tuber yield, tuber size distribution, and tuber quality of potato cultivar CO05068-1RU. Treatments included planting of potato seed at in-row seed spacing of 25, 30, 35, and 40 cm. For fresh market potatoes, maximum total, marketable, and premium size tuber yields were obtained when seed was planted at 35 cm intervals within rows. The yield increases were, 4%, 6%, and 67%, for total, marketable, and premium size tubers, respectively, when compared to planting at 25 cm in-row seed spacing. Data from these studies indicate that with the appropriate rate of nitrogen fertiizer applied, and with the proper application timing, growers are able to maximize their profits from potato farming. Nitrogen uptake is more efficient, and there is minimum potential of nitrogen leaching into ground and surface waters, which help reduce environmental pollution. Planting at in-row spacing of 35 cm reduced the quantity of seed planted per hectare, as compared to planting at 25 cm in-row seed spacing.Input cost of seed planted was reduced. Thefarmer's profit margin is increased, and the economic activity of the rural population is increased.
Publications
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2018
Citation:
Essah, SYC. 2018 Reducing irrigation water and nitrogen fertilizer use in irrigated potato production systems. In: Proceedings. International conference and Expo on Agriculture and Horticulture. August 13-14, 2018. Amsterdam, Netherlands. page 18.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2018
Citation:
Essah, SYC. 2018. Response of irrigated potato to a combination of compost and nitrogen fertilizer application rates. In: Proceedings. International conference and Expo on Agriculture and Horticulture. August 13-14, 2018. Amsterdam, Netherlands. page 30
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2018
Citation:
Essah, SYC. 2018. Managing nitrogen with economic implications in early and late Colorado Russet potatoes. Southern Rocky Mountain Agricultural Conference and Trade Show. February 6-8, 2018. Monte Vista, CO.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2018
Citation:
Essah, SYC. 2018. Compost combined with nitrogen fertilizer influences performance of Russet potato in the field. In: Abstracts. Annual meeting of American Society for Horticultural Science. July 30-August 3, 2018. Washington DC.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2018
Citation:
Essah, SYC, JA Delgado, and DG Holm. 2018. Pre-plant nitrogen fertilizer application rate influences potato performance in the field. In: Abstracts. Annual meeting of American Society of Agronomy and Crop Science Society of America. November 4-7, 2018. Baltimore, MD. page 177.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2018
Citation:
Essah, SYC and DG Holm. 2018. Response of Russet potato to compost application rate with optimum or reduced nitrogen fertilizer application. In: Abstracts. Annual meeting of Potato Association of America. July 22-26, 2018. Boise, Idaho.
- Type:
Other
Status:
Other
Year Published:
2018
Citation:
Essah, SYC. 2018. Colorado Potato Cultivar management. 2017 Research data submitted to CPAC Area II. 36 pages.
|
Progress 10/01/16 to 09/30/17
Outputs
Target Audience:Potato Growers, Agricultural Consultants, Extension Agronomists, and Research Agronomists Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?Field days were organized for potato growers to see the response of potatoes to controlled release fertilizers. My research associate, post doctorial research scientist, and research aids have gained experience with the use of controlled release fertilizers. How have the results been disseminated to communities of interest?Field days were organized in August for potato growers to see potato plant growth and development under controlled release fertilizer use. Farmers were able to see the effect of nitrogen application timing and rate of application on Russet potato performance. Presentations were made to potato growers, field consultants, extension agronomists, and other agro industry personnel at local, regional, and national meetings. Some results of the project were published in local and regional outlets. Results of the project have been posted on the Colorado State University Potato Program Website What do you plan to do during the next reporting period to accomplish the goals?Continue to develop cultural management guidelines for new potato cultivars that are being developed from the Colorado potato breeding program. Use of plant growth promoting rhizobacteria to improve soil productivity and tuber yield and quality of potatoes
Impacts
What was accomplished under these goals?
Conventional fertilizers applied as liquid fertilizer need to be used by the plant within a short span of time, or the applied fertilizer has the potential of being leached into ground or surface waters, or the potential of being lost through volatalization. Conventional liquid fertilizers have to be applied frequently during the potato growing season for the plant to obtain the needed amounts during the growing season. This method of fertillizer application is time consuming, expends farm energy, and adds to input cost. Controlled release fertilizers can be applied only once, before or at planting. The controlled release fertilizer then releases plant nutrient slowly during the growing season to meet plant demand. This technique of fertilizer application saves farm energy, saves time, and can reduce nutrient leaching into ground and surface waters, as well as reducenutrient volatilization. Studies were conducted to evaluate the response of Russet potato to different rates of controlled release fertlizers as compared to conventional liquid fertilizers used by potato growers. The controlled release fertilizers used in this study were Agrocote potassium (AgroK) and Agrocote nitrogen (AgroN). These controlled release fertilizers were applied at full rate (100%) or at 75% rate, or in combination with conventional fertilizers, or in combination with each other. Application of AgroK at 75% rate, or application of AgroN + AgroK each at 100% rate, increased total and marketable tuber size tuber yields significantly. The yield of premium size tubers increased by 18% and 15%, respectively, when compared to yields obtained when conventional liquid fertilizer was used. These yield increases indicate the efficient use of nutrients when controlled release fertilizers are used in potato production. Farm energy and time is saved. Income of farmers increased which help improve the economic activity of the rural community. Nutrient leaching into ground and surface waters are minimized, thereby making the environment more safe for the community. Potato cultivars are unique in their response to the quantity of nitrogen fertilizer applied. Under application or over application can result in reduced yields and problems with tuber quality both at harvest and in storage. Optimum nitrogen application rates need to be established for new potato cultivars so they can achieve their genetic yield and quality potential after they are released to farmers. Two new potato cultivars from the Colorado potato breeding program (CO05068-1RU and AC05039-2RU) were evaluated for their response to nitrogen application rate. Treatments ranged from 0 kg/ha applied nitrogen to 269 kg/ha applied nitrogen. Application of 134 kg nitrogen per hacter produced maximum economic tuber yields in AC05039-2RU. Total and marketable tuber yields were increased by 12% and 9%, respectively, with nitrogen application rate of 134 kg nitrogen per hacter. For the cultivar CO05068-1RU, nitrogen application rate of 202 kg/ha produced economically maximum tuber yields. Total and marketable tuber yields were increased by 21% and 32%, respectively, at the 202 kg/ha application rate, when compared to the control treatment of 0 kg/ha application of nitrogen. For the cultivar CO05068-1RU, application of nitrogen below 202 kg/ha reduced yields significantly. Application of nitrogen above the optimum of 202 kg/ha did not increase yields economically in this late cultivar. Observations made in this study emphasizes the importance of determining optimum nitrogen rates for each potato cultivar, to maximize tuber yield and economic returns to the farmer. Timing of nitrogen fertilizer application is as important as the rate of application in potato production. Studies were conducted to evaluate the effect of nitrogen application timing on the performance of the new potato cultivar CO05068-1RU. Treatments included a) application of all rquired nitrogen pre-plant b) all required nitrogen applied in-season (after tuber formation) c) 33% of required nitrogen applied pre-plant, and the remainder applied in-season d) 50% of the required nitrogen applied pre-plant, and the remainder applied in-season e) 66% of the required nitrogen applied pre-plant and the remaining required nitrogen applied in-season. For cultivar CO05068-!RU, application of 33% of the total required nitrogen pre-plant and then applying the remaining nitrogen in three split applications after tuber formation, produced maximum tuber yield and quality tubers. When nitrogen application was timed in this manner, total and marketable yields were increased by 26% and 29%, respectively, when compared to applying all nitrogen fertilizer pre-plant. When 33% of nitrogen fertilizer was applied pre-plant, and the remaining nitrogen applied after tuber formation, it was observed that the high yielding potatoes were of high quality and did not show any external or internal defects. Data from these studies indicate that with the appropriate rate of nitrogen fertilizer applied, and with the proper application timing, growers are able to maximize their profits from potato farming. Nitrogen uptake is more efficient, and there is minimum potential of nitrogen leaching into ground and surface waters. Controlled release fertilizers make plant nutrients available to the plant when needed. Farm energy and farm labor is reduced in their application compared to conventional liquid fertilizer application. Efficient uptake of released plant nutrients reduces the potential of nutrient leaching into ground and surface waters, which help reduce environmental pollution.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Essah, SYC, A.A. Andales, and T. Bauder.2017. Deficit irrigation in early and medium to late maturity potato cultivars. Am. J. Potato Res. 94:221
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Zavislan, K.A., D.G. Holm, C.P. Gray, S.Y.C. Essah, S.S. Jayanty, R.D. Davidson, and A.J. Houser. 2017. Fortress Russet: A disease resistant potato cultivar from the Colorado Potato Breeding and Selection program. Am. J. Potato Res. 94:249
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Essah, SYC. 2017. Reducing irrigation water use for early tuber bulking and maximum tuber yield of Russet potato. In: Annual meeting abstracts. Potato Expo program directory. January 4-6, 2017. Moscone Center West Marriott Marquis, San Francisco, CA
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Essah, SYC, A. Andales, T. Bauder, and D.G. Holm. 2017. Response of three Colorado potato cultivars to deficit irrigation. In: Annual meeting Abstracts. Potato Association of America. July 23-27, 2017. Holiday Inn, Fargo, ND. page 75.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Essah, SYC, A. Barka, A. Andales, T. Bauder and D.G. Holm. 2017. Use of single line source irrigation technique for deficit irrigation studies in potatoes. In: Annual meeting abstracts. American Society for Horticultural Science. Annual Conference. Sept. 19-22. Wailoloa, Hawaii. Page 61
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Essah, SYC and M.E. Zarnstorff. 2017. Response of potato to simulated hail damage in the field. In: Annual Meetings Abstracts. American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. October 22-25, 2017. Tampa, FL Page 227.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Essah, SYC. 2017. Deficit irrigation management. Southern Rocky mountain Agricultural Conference. February 7-9, 2017. Monte Vista, CO.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Essah, SYC. 2017. Colorado Potato Cultivar management. 2016 research data submitted to CPAC Area II. 35 pages.
|
Progress 10/01/15 to 09/30/16
Outputs
Target Audience:Potato Growers, Agricultural Consultants, Extension Agronomists, and Research Agronomists Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?Through this project, my research associate and scientific aids have learned how to insall soil moisture sensors and collect soil moisture data using data logger. Field days were organized for potato growers to see the positive impact of reduced irrigation water use in potato production. How have the results been disseminated to communities of interest?1. Field days were organized in August for potato growers to see potato plant growth and development under reduced irrigation water use. 2. Presentations were made to potato growers, field consultants, extension agronomists, and other personel from agro industries, at local and regional meetings. 3. Some results of the project were published in local and regional newspapers through press interviews. 4. Some results from the project have been published in potato magazines. 5. Results of this project have been posted on the Colorado State University Potato Program Website. What do you plan to do during the next reporting period to accomplish the goals?Continue to develop cultural management guidelines for new potato cultivars that are being developed from the Colorado potato breeding program. Deficit irrigation management for production of new potato cultivars will be continued.
Impacts
What was accomplished under these goals?
Potato varieties differ in their response to fertilizer application. The timing of fertilizer application also influences potato yield and quality performance. A new potassium based fertilizer, know as potassium acetate has been developed in the United States. A study was conducted to evaluate the response of Russet potato to time of application of potassium acetate. Application of potassium acetate as source of potassium fertilizer increased potato tuber yield, irrespective of time of application, when compared to muriate of potash which is the conventional source of potassium fertilizer used in the United States. Pre-plant application of potassium acetate increased total tuber yield, marketable tuber yield, and premium size tuber yield of Mesa Russet potato by 12%, 22%, and 58%, respectively. In this project, the application of muriate of potash alone did not increase tuber yield, but addition of potassium acetate as a foliar spray after pre-plant application of muriate of potash did increase total, marketable, and premium size tuber yields of Mesa Russet. The yield increases observed for pre-plant application of potassium acetate was due to efficient uptake and utilization of potasium from the potassium acetate fertilizer. Efficient uptake and utilization of fertilizers result in less use of plant nutrients, which reduce input costs and reduced potential environmental contamination. Irrigation water is one of the most important inputs in any successful irrigated potato production system. Availability of irrigation water has become an issue in Colorado. In irrigated potato production systems, the quantity of water applied is equivalent to evapotranspiration (ET) replacement. ET is mostly estimated for a wide range of potato varieties, wihich often leads to over irrigation of some varieties. Potato varieties vary widely in maturity and in ability to withstand water stress. The demand on irrigation water and the scarcity of irrigation water is more severe during tuber bulking. Identifying potato varieties that can withstand reduced irrigation water use during tuber bulking through tuber maturit, and still maintain maximum tuber yield and quality, can lead to sustainable potato production in irrigated potato production regions. The objective of this project was to evaluate the response of early and medium to late maturity Russet potatoes to reduced irrigation use from tuber bulking through tuber maturity. Results obtained from this project indicate that early Russet potatoes, such as, Mercury Russet have been over irrigated over the years with the current43 cmof irrigation + rain water used to produce this variety. Early Russet varieties can be successfully grown with 35 cm of irrigation + rain water. With 35 cm of irrigation water, the quantity of water used was reduced by 21% in this project, with higher total and marketable tuber yields. Medium maturity potato varieties such as Rio Grande Russet have been over irrigated with the use of 48 cm of irrigation + rain water for their production. Rio Grande Russet was successfully grown with a 11% reduction in irrigation + rain water. The 11% reduction in rain water did not impact tuber yield or tuber quality.
Publications
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Essah, SYC and J.A. Delgado. 2016. Response of medium maturity Russet potato to source and time of potassium fertilizer application. In: Annual meeting Abstracts. American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. November 6-9, 2016. Phoenix, AZ.
- Type:
Websites
Status:
Published
Year Published:
2016
Citation:
Essah, SYC. 2016. Pre-plant potassium application improves yields. The spudman magazine (spudman.com). November/December issue. 54:36-37.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Essah, SYC. 2016. Production management of Fortress Russet for successful tuber yield and quality. Southern Rocky Mountain Agricultural Conference and Trade Fair. February 9-11, 2016. Monte Vista, CO.
- Type:
Conference Papers and Presentations
Status:
Other
Year Published:
2016
Citation:
Essah, SYC. 2016. Response of potato to pathway biological amendments. May 3, 2016.
- Type:
Websites
Status:
Published
Year Published:
2016
Citation:
Essah, SYC. 2016. Potato variety management guidelines start from grower farms. In: Spud Items. September 13, 2016 issue. www.coloradopotato.org.
- Type:
Websites
Status:
Published
Year Published:
2016
Citation:
Essah, SYC. 2016. A new potassium (K) fertilizer has proved to increase potato tuber yield. In: Spud Items. November 4, 2016 issue. www.coloradopotato.org.
- Type:
Websites
Status:
Published
Year Published:
2016
Citation:
Essah, SYC. 2016. Potato variety management guidelines. In: Colorado Ag Clips. September 14 edition (B. Hastings, A. Bemis, M Guilmette, Jr., Eds). WWW.MORNINGAGCLIPS.COM
- Type:
Websites
Status:
Published
Year Published:
2016
Citation:
New K fertilizer increases tuber yield. In: Colorado Ag Clips. November 8 edition (B. Hastings, A. Bemis, M Guilmette, Jr., Eds). WWW.MORNINGAGCLIPS.COM
- Type:
Websites
Status:
Published
Year Published:
2016
Citation:
Rockey B, and SYC Essah. 2016. For Colorado farmers, the secret's in the soil. In: Colorado Ag. Clips. September 9 edition. Contributed to article. (B. Hastings, A. Bemis, M Guilmette, Jr., Eds). WWW.MORNINGAGCLIPS.COM
- Type:
Conference Papers and Presentations
Status:
Other
Year Published:
2016
Citation:
Essah, SYC. 2016. Sustainable potato production in a high altitude Region. February 22, 2016. Westcliff, CO.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Essah, SYC. 2016. Proper timing of nitrogen fertilizer applications can increase tuber yield and quality performance of irrigated potato. In: Annual meeting abstracts. Potato Expo Program directory. page 26. January 12-14, 2016. The mirage Hotel, Las Vegas, NV.
- Type:
Websites
Status:
Published
Year Published:
2016
Citation:
Essah, SYC. 2016. Colorado potato cultivar management. 2015 research data submitted to CPAC Area II. 28 pages. www.potatoes.colostate.edu
- Type:
Journal Articles
Status:
Published
Year Published:
2016
Citation:
Essah, SYC. 2016. Dry matter and fresh tuber yield performance of a new Colorado potato cultivar as influenced by nitrogen application rate and pre-plant nitrogen application. Am. J. Potato Res. 93:129
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Essah, SYC, A.A. Andales, and T. Bauder. 2016. Deficit irrigation in early and medium to late maturity potato cultivars. In: Annual meeting abstracts. Potato Association of America. July 31-August4, 2016. Amway Grand Plaza Hotel. Grand Rapids, Michigan. Page 76.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Zavislan, Katrina A., DG Holm, CP Gray, SYC Essah, SS Jayanty, RD Davidson, and A Houser. 2016. Fortress Russet: A disease resistant potato cultivar from the Colorado potato breeding and selection program. In: Annual meeting abstracts. Potato Association of America. July3-August 4, 2016. Amway Grand Plaza Hotel. Grand Rapids, MI. page 71.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Essah, SYC. 2016. Nitrogen application timing influences performance of early and medium maturity Russet potatoes. In: Annual meeting abstracts. Western Society of Crop Science. July 12-13, 2016. Albuquerque, NM. page 2.
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Progress 10/01/14 to 09/30/15
Outputs
Target Audience:Potato Growers and Agricultural consultants. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?Field days were organized for potato growers to see the positive impact of reduced irrgiation in potato production systems. How have the results been disseminated to communities of interest?1. Field days were organized. 2. Presentations were made to potato growers and Agricultural consultants at local and regional meetings. (see presentations above) 3. Some results of the project were published in local newspapers 4. Some results of the project were published in potato magazines. What do you plan to do during the next reporting period to accomplish the goals?Continue to develop mangement guidelines for efficient potato production .
Impacts
What was accomplished under these goals?
Potato cultivars can differ in theri requirement for irrigation water. Mercury Russet and Crestone Russet can be successfully grown to achieve optimum tuber yield and quality by reducing irrigation water up to 18 and 15%, respectively, when compared to the present irrigation water use of 16 inches for Mercury Russet, and 19 inches for Crestone Russet. Differeent potato cultivars differ in their response to nitrogen application timing. For example, Fortress Russet (a medium to late maturity cultivar) is more successful when 33% of the requiered nitrogen is applied pre-plant, while Mercury Russet (an early maturing cultivar) is more successful when 66% of the required nitrogen is applied pre-plant.
Publications
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Essah, S.Y.C. 2015. Field management of Fortress Russet. Southern Rocky Mountain Agricultral conference. Abstracts. February 10-12, 2015. Monte Vista, CO.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Essah, S.Y.C. 2015. response of Mesa Russet Potato to potassium fertilizer source and time of application. Proceedings: Western Nutrient management Conference, Vol. 11.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Essah, S.Y.C. 2015. Source and time of phosphorus fertilizer application influences marketable tuber yield and quality of Russet Potato. 2015 potato expo abstracts. January 7-9, Rosen Shingle Creek, Orlando FL.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Essah, S.Y.C. 2015. Nitrogen fertilizer management for efficient for efficient utilization in potato production. In: Proceedings of the World Congress of Agriculture Conference (parallel forum of wGC - 2015), Nov. 13-15, Qingdao, China.
- Type:
Journal Articles
Status:
Published
Year Published:
2015
Citation:
Essah, S.Y.C. and D.G. Holm: 2015. Timing of nitrogen fertilizer application in potato production of New Russets from Colorado State University. Am. J. Potato Res. 92:187
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Essah, S.Y.C. 2015. Dry matter and fresh tuber yield performance of of a new Colorado Potato cultivar as influenced by nitrogen application rate and pre-plant nitrogen application. Annual meeting abstracts, Potato Association of America.
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Progress 07/11/14 to 09/30/14
Outputs
Target Audience: Potato growers in Colorado, Western United States, and the nation as a whole Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided? Has increased the research proficiency of my research associate. How have the results been disseminated to communities of interest? Results of my studies have been presented to various potato grower groups as well as potato scientists and consultants. Examples include: Presentation at the Southern Rocky Mountain Potato conference to potato growers, presentation to potato growers in northeas Colorado, and presentaton at professional meetings, such as the potato association of America, Potato Expo, and the American Society of Agronomy. What do you plan to do during the next reporting period to accomplish the goals? Continue with nutrient and water management studies to develop optimum management guidelines for new Colorado Potato cultivars.
Impacts
What was accomplished under these goals?
Optimum nitrogen management guidelines has been developed for three new potato cultivars. The best source and form of application of phosphorus and potassium fertilizer has been achieved in this project. With the development of optimum in-row seed spacing, less seed can be planted for Fortress Russet to achieve maximum tuber yield. Irrigation wate use can be reduced by 20% to produce optimum tuber yield of early maturity cultivars.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2014
Citation:
Essah, S.Y.C. 2014. Air injection of drip irrigated water improves potato performance in the field. Am. J. Potato Res. 91:45.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Essah, S.Y.C. 2014. Timing nitrogen fertilizer application for early and medium maturity potatoes. Southern Rocky Mountain Ag. Conference. Feb 4-6, 2014.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Essah, S.Y.C. and D.G. Holm. 2014. Timing of nitrogen fertilizer application for increased N-Use efficiency in potato production. In: Annual meeting abstracts. Potato Association of America.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Essah, S.Y.C. 2014. Response of a new Colorado Russet potato cultivar to nitrogen application timing. In: Annual meeting abstracts. ASA-CSSA-SSSA. Tampa, FL. October-November, 2014
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Essah, S.Y.C., S. Jayanty, and H. Castleberry. 2014. Response of Russet potato to additional late nitrogen fertilizer application. In: Meeting Abstracts. Potato Expo. January 2014. San Antonio, Texas.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Essah, S.Y.C. 2014. Field management of Fortress Russet. Presented at the potato breeding and cultivar development open house. Nov. 20, 2014. San Luis Valley Research Center.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Essah, S.Y.C. 2014. Nutrisorb improves root growth, nutrient uptake, tuber yield and quality in potato production systems. Presented to potato growers and consultants. Guadalajara City, Mexico. July 16-19, 2014.
- Type:
Other
Status:
Published
Year Published:
2014
Citation:
Essah, S.Y.C. 2014. Potato cultivar management and whole plant physiology program. Presented to visiting Pakistani potato scientists. July 2014. San Luis Valley Research Center.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Essah, S.Y.C. and T Bauder. 2014. Water and potatoes. Presented at the San Luis Valley Potato Industry Workshop. October26, 2014. Adams State University, Alamosa.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Essah, S.Y.C. 2014. Sustainable potato production. Presented at the San Luis Valley Potato Industry Workshop. October26, 2014. Adams State University, Alamosa.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Essah, S.Y.C. 2014. Reducing irrigation water use in potato production. Presented to potato growers in Northeast Colorado. November, 2014.
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