Evaluation of Different Grade NPS Fertilizers on Agronomic Performance of Faba Bean (Vicia faba L.) in Nitisol of Central Ethiopian Highland

Field experiment was conducted to evaluate the response of different grade NPS fertilizer and their rate on the growth performance of faba bean in the central highlands of Ethiopia, Oromia regional state at Welmera and Ejere districts Nitisols by using completely randomized block design with three replication which includes two different new NPS grade fertilizers with three application rates (80, 100 and 120%) from recommended rate with two standard and negative controls for two successive coping seasons. Where all soil, plant growth performance and yield data were collected accordingly the highest grain yield result was obtained from 80% of recommended rate of P from 13.3N-36P2O5-13.7S followed by the 3rd treatment 100% of rec. rate of P from 19N-38P2O5-7S (Positive control 2). The partial budget analysis results also indicated that use of 80% of recommended rate of P from 13.3N-36P2O5-13.7S grade fertilizer got highest net benefit economic advantage and marginal rate of return over other treatment followed by treatment three in both parameters. Keywords: Nitisol, Faba bean, Different grade, NPS, fertilizer, yield and Net benefit. DOI: 10.7176/JNSR/12-19-02 Publication date:October 31st 202