Faba bean (Vicia faba L.) is a major grain legume widely cultivated in many countries for food and feed purposes. Faba bean contributes to sustainable agriculture by fixing atmospheric nitrogen in symbiosis with soil rhizobia. Biological and organic fertilizers are the alternative solutions and the promising technologies which play an important role in reducing the consumption of chemical N-fertilizers, increasing yield, improve soil fertility, decreasing the production cost, and eliminating the undesirable pollution impact of chemical fertilizers in the environment. Therefore, the aim of this study was to evaluate the impact of integrated effect of vermicompost, rhizobia inoculation and NP fertilizer on yield of fababean. A field experiment was conducted at Kulumsa Agricultural Research Center for two years from 2014 to 2015 cropping seasons. The experiment consisted of seven treatments, namely no input, 18-46 kg N-P 2 O 5 ha -1 from DAP, 18-46 kg N-P 2 O 5 ha -1 from vermicompost, Rhizobium (EAL-110)+18-46 kg N-P 2 O 5 ha -1 from DAP, Rhizobium+18-46 kg N-P 2 O 5 ha -1 from vermicompost, Rhizobium+9-23 kg N-P 2 O 5 ha -1 from DAP and Rhizobium+9-23 kg N-P 2 O 5 ha -1 from vermicompost, were laid out in randomized complete block design with three replications. The results showed that application of 18-46 kg N-P ha -1 either from organic or inorganic nutrient sources need to be continued for sustainable production of fababean under Kulumsa Agricultural Research Center on station condition.
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