The effect of nitrogen and phosphorus fertilizers rate on the yield of early maturing barley at Farta and Huleteju-Enebassie areas of northwestern Ethiopia
2001
Minale Liben(Adet Agricultural Reserarch Center, Adet (Ethiopia). Agronomist) | Alemayehu Assefa(Adet Agricultural Reserarch Center, Adet (Ethiopia). Agronomist) | Tilahun Tadesse(Adet Agricultural Reserarch Center, Adet (Ethiopia). Agronomist) | Alemu Hailiye(Adet Agricultural Reserarch Center, Adet (Ethiopia). Agricultural Economist)
Food barley is one of the most important cereal crops grown in northwestern Ethiopia. Farmers use early maturing barley to overcome food shortage that prevails during the months of October and November. Under farmers' conditions, however, productivity is very low. Low soil fertility is one of the major limiting factors for barley production. Thus, an experiment was conducted on Nitosols of cereal-based rotation system at Farta and Huleteju-Enebassie areas in 1996 and 1997 cropping seasons. The principal objective of the trial was to determine economically optimum fertilizer rate of nitrogen and phosphorous for early maturing food barely. Statistical analysis indicated that there were significant differences on nitrogen and phosphorus fertilizers for grain yields, plant height and 1000 kernels weight at both locations. The highest mean grain yields, 1616 kg ha sup(-1) at Huleteju-Enebssie and 1702 kg ha sup(-1) at Farta, were obtained from the interactions of 69-69 and 69-46 kg N-P2O5 ha sup(-1) with yield advantages of 954 and 1111 kg over the control (0-0 N-P) at the respective locations. However, the economic analysis indicated that 69-23 kg N-P2O5 ha sup(-1) at Farta and 46-23 kg N-P2O5 ha sup(-1) at Huleteju-Enebassie are economically optimum levels for recommendation.
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