Soil test based Phosphorous Calibration for Soybean [Glycine max (L.) Merrill] Production on Nitisols in Assosa Zone of Benishangul Gumuz Region, Western Ethiopia

Abstract

DOI: 10.15580/GJSSPN.2018.2.022018026 Soil test based phosphorous (P) calibration study was conducted on Soybean on Nitisols of farmers’ fields in Assosa Zone. The experiment was arranged in a randomized complete block design with six levels of phosphorous fertilizer (0, 5, 10, 15, 20 and 25 kg ha -1 ) with three replications. The results revealed substantial responses of Soybean to phosphorus fertilizer rates on plant height, pod numbers per plant and seed yield. Seed yield increased significantly from 1761 to 2300 kg ha -1