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Abstract

Field experiment was undertaken to establish a balanced nutrients management for improved and economical production of sorghum. It was grown with P2O5 (80 kg ha-1) and K2O (40 kg ha-1) as their sole and combined fertilization along with uniform level of N (120 kg ha-1). Results indicated that P enhanced the crop growth, yield and nutrients uptake more than K and the best results were observed with their combined application. Maximum biological and grain yield were 31.7 and 2.26 t ha-1 under P+K. Uptake of N, P and K was also highest with P+K. Fertilizer use efficiency was highest for K alone (9.65 kg kg-1) followed by P alone (8.45 kg kg-1). Economic analysis showed maximum net return (NR) and relative increase in income (RII) with P+K treatment, while the value cost ratio (VCR) was slightly higher for P alone. Integration of P and K was better than used alone for improved and economical production of sorghum

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