| Autor: |
Fresew Belete, Nigussie Dechassa, Adamu Molla, Tamado Tana |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Agriculture & Food Security, Vol 7, Iss 1, Pp 1-12 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2048-7010 |
| DOI: |
10.1186/s40066-018-0231-z |
| Popis: |
Abstract Background Nitrogen is one of the most important nutrients limiting yield of bread wheat in Ethiopian highlands. Application of a large amount of N fertilizer has been a method of increasing yield in the study area which is costly and can cause environmental pollution. Therefore, a field experiment was conducted for two consecutive years (2014 and 2015) to evaluate the effect of N application rates on grain yield, nitrogen uptake and N use efficiency of bread wheat varieties. The treatments consisted of a factorial combination of four rates of nitrogen (0, 120, 240 and 360 kg ha−1) and three popular wheat varieties (Menze, Tsehay and ET-13) in a randomized complete block design with four replications. Results The two-way interaction of year and N rate, N rate and variety significantly affected grain nitrogen concentration. The interaction of year and variety and N rate and variety affected grain and straw nitrogen concentrations, respectively. The three-way interaction of year, N fertilizer rate and variety significantly affected (P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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