Environmentally Smart Nitrogen Performance in Northern Great Plains’ Spring Wheat Production Systems
Experiments were conducted in Montana to evaluate Environmentally Smart Nitrogen (ESN) as a nitrogen (N) source in wheat. Plots were arranged in a split-plot design with ESN, urea, and a 50%-50% urea-ESN blend at low, medium, and high at-seeding N rates in the subplot, with four replications. Measur...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Agronomy |
| Online Access: | http://dx.doi.org/10.1155/2016/8969513 |
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| author | Olga S. Walsh Kefyalew Girma |
| author_facet | Olga S. Walsh Kefyalew Girma |
| author_sort | Olga S. Walsh |
| collection | DOAJ |
| description | Experiments were conducted in Montana to evaluate Environmentally Smart Nitrogen (ESN) as a nitrogen (N) source in wheat. Plots were arranged in a split-plot design with ESN, urea, and a 50%-50% urea-ESN blend at low, medium, and high at-seeding N rates in the subplot, with four replications. Measurements included grain yield (GY), protein (GP), and N uptake (GNU). A partial budget economic analysis was performed to assess the net benefits of the three sources. Average GY varied from 1816 to 5583 kg ha−1 and grain protein (GP) content ranged from 9.1 to 17.3% among site-years. Urea, ESN, and the blend resulted in higher GYs at 3, 2, and 2 site-years out of 8 evaluated site-years, respectively. Topdressing N improved GY for all sources. No trend in GP associated with N source was observed. With GP-adjusted revenue, farmer would not recover investment costs from ESN or blend compared with urea. With ESN costing consistently more than urea per unit of N, we recommend urea as N source for spring wheat in Northern Great Plains. |
| format | Article |
| id | doaj-art-aed0776257094c7da14451fc94126350 |
| institution | Kabale University |
| issn | 1687-8159 1687-8167 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
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| series | International Journal of Agronomy |
| spelling | doaj-art-aed0776257094c7da14451fc941263502025-02-03T01:27:45ZengWileyInternational Journal of Agronomy1687-81591687-81672016-01-01201610.1155/2016/89695138969513Environmentally Smart Nitrogen Performance in Northern Great Plains’ Spring Wheat Production SystemsOlga S. Walsh0Kefyalew Girma1Southwest Research & Extension Center, University of Idaho, 29603 U of I Lane, Parma, ID 83660-6699, USASouthwest Research & Extension Center, University of Idaho, 29603 U of I Lane, Parma, ID 83660-6699, USAExperiments were conducted in Montana to evaluate Environmentally Smart Nitrogen (ESN) as a nitrogen (N) source in wheat. Plots were arranged in a split-plot design with ESN, urea, and a 50%-50% urea-ESN blend at low, medium, and high at-seeding N rates in the subplot, with four replications. Measurements included grain yield (GY), protein (GP), and N uptake (GNU). A partial budget economic analysis was performed to assess the net benefits of the three sources. Average GY varied from 1816 to 5583 kg ha−1 and grain protein (GP) content ranged from 9.1 to 17.3% among site-years. Urea, ESN, and the blend resulted in higher GYs at 3, 2, and 2 site-years out of 8 evaluated site-years, respectively. Topdressing N improved GY for all sources. No trend in GP associated with N source was observed. With GP-adjusted revenue, farmer would not recover investment costs from ESN or blend compared with urea. With ESN costing consistently more than urea per unit of N, we recommend urea as N source for spring wheat in Northern Great Plains.http://dx.doi.org/10.1155/2016/8969513 |
| spellingShingle | Olga S. Walsh Kefyalew Girma Environmentally Smart Nitrogen Performance in Northern Great Plains’ Spring Wheat Production Systems International Journal of Agronomy |
| title | Environmentally Smart Nitrogen Performance in Northern Great Plains’ Spring Wheat Production Systems |
| title_full | Environmentally Smart Nitrogen Performance in Northern Great Plains’ Spring Wheat Production Systems |
| title_fullStr | Environmentally Smart Nitrogen Performance in Northern Great Plains’ Spring Wheat Production Systems |
| title_full_unstemmed | Environmentally Smart Nitrogen Performance in Northern Great Plains’ Spring Wheat Production Systems |
| title_short | Environmentally Smart Nitrogen Performance in Northern Great Plains’ Spring Wheat Production Systems |
| title_sort | environmentally smart nitrogen performance in northern great plains spring wheat production systems |
| url | http://dx.doi.org/10.1155/2016/8969513 |
| work_keys_str_mv | AT olgaswalsh environmentallysmartnitrogenperformanceinnortherngreatplainsspringwheatproductionsystems AT kefyalewgirma environmentallysmartnitrogenperformanceinnortherngreatplainsspringwheatproductionsystems |