Maize Grain Yield Limiting Nutrients in North West Ethiopia: Pawe District

Abstract

Soil fertility is the central axis of agricultural productivity. Different approaches are being exercised and applying appropriate rate of chemical fertilizer is the one. A study was conducted in Pawe district to evaluate the effects of N, P, K and S fertilizers on maize grain yield for two consecutive years. Including negative control 23,46,69,92 kg/ha of N, 10, 20 and 30 kg/ha of P with 92 Kg of N, 10, 20 & 30 kg/ha of K and 2.5,5,7 kg of S were also combined to evaluate their effect of maize grain yield. Maximum grain yield was recorded from treatments with 92N20P and 92N10P, but the economic analysis indicates that maximum marginal rate of return is higher at 69 N while maximum net benefit is at 92N10P.

Keywords: Soil Fertility, Fertilizer,Net Benefit, Marginal Rate of Return.

DOI: 10.7176/JBAH/11-17-01

Publication date:September 30^th 2021