Effects of nitrogen, phosphorus and vermicompost on groundnut yield in Babile District, eastern Ethiopia
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摘要
Groundnut is a major cash crop for smallholder farmers in several districts of eastern Ethiopia with low yield. Little or no fertilizer was applied for the crop possibly because no generic or recommended fertilizer and technology were available. Therefore, field experiments were conducted for 2 consecutive cropping seasons in Babile District, to investigate effects of applying mineral N and P fertilizer and vermicompost(VC) on seed yield and oil content of groundnut using an improved variety ‘BaHa-Gudo'. Treatments consisted of nitrogen(0, 23 and 46 kg N/ha), phosphorus(0, 46 and 92 kg P_2O_5/ha) and VC(0, 2.5 and 5 t VC/ha). Results revealed that yield attributes, seed yield and seed oil content were significantly(p < 0.01) affected by fertilizers. Seed yield after combined application of 46 kg N, 46 kg P_2O_5 and 2.5 t VC/ha increased by about 113% compared to seed yield without any fertilizers. Enhancement in seed oil content at the aforementioned rate was 7.0%. It could, thus, be concluded that applying the aforementioned fertilizers would enable farmers to increase seed yield and oil content of groundnut for enhancing their income and livelihoods in the study area.
Groundnut is a major cash crop for smallholder farmers in several districts of eastern Ethiopia with low yield. Little or no fertilizer was applied for the crop possibly because no generic or recommended fertilizer and technology were available. Therefore, field experiments were conducted for 2 consecutive cropping seasons in Babile District, to investigate effects of applying mineral N and P fertilizer and vermicompost(VC) on seed yield and oil content of groundnut using an improved variety ‘BaHa-Gudo'. Treatments consisted of nitrogen(0, 23 and 46 kg N/ha), phosphorus(0, 46 and 92 kg P_2O_5/ha) and VC(0, 2.5 and 5 t VC/ha). Results revealed that yield attributes, seed yield and seed oil content were significantly(p < 0.01) affected by fertilizers. Seed yield after combined application of 46 kg N, 46 kg P_2O_5 and 2.5 t VC/ha increased by about 113% compared to seed yield without any fertilizers. Enhancement in seed oil content at the aforementioned rate was 7.0%. It could, thus, be concluded that applying the aforementioned fertilizers would enable farmers to increase seed yield and oil content of groundnut for enhancing their income and livelihoods in the study area.
Groundnut is a major cash crop for smallholder farmers in several districts of eastern Ethiopia with low yield. Little or no fertilizer was applied for the crop possibly because no generic or recommended fertilizer and technology were available. Therefore, field experiments were conducted for 2 consecutive cropping seasons in Babile District, to investigate effects of applying mineral N and P fertilizer and vermicompost(VC) on seed yield and oil content of groundnut using an improved variety ‘BaHa-Gudo'. Treatments consisted of nitrogen(0, 23 and 46 kg N/ha), phosphorus(0, 46 and 92 kg P_2O_5/ha) and VC(0, 2.5 and 5 t VC/ha). Results revealed that yield attributes, seed yield and seed oil content were significantly(p < 0.01) affected by fertilizers. Seed yield after combined application of 46 kg N, 46 kg P_2O_5 and 2.5 t VC/ha increased by about 113% compared to seed yield without any fertilizers. Enhancement in seed oil content at the aforementioned rate was 7.0%. It could, thus, be concluded that applying the aforementioned fertilizers would enable farmers to increase seed yield and oil content of groundnut for enhancing their income and livelihoods in the study area.
引文
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