tailieunhanh - Soil test based fertilizer recommendation under integrated plant nutrition system for vegetable cowpea [Vigna unguiculata (L) Walp] in Ultisols of Kerala, India

To develop fertilizer prescription equations for vegetable cowpea, a field experiment was conducted on Ultisol of STCR field, Kerala Agricultural University, Thrissur by using integrated plant nutrient management system on the basis of STCR approach. Soil test data, cowpea pod yield and NPK uptake by cowpea were used for obtaining four important basic parameters viz. nutrients required to produce one tonne of pod yield (NR), contribution of nutrients from fertilizers (%CF), contribution of nutrients from soil (%CS) and contribution of nutrients from organic matter (%CFYM). The nutrient requirement of cowpea to produce one tonne of pod yield in terms of N, P2O5 and K2O were , kg t-1 , respectively. | Soil test based fertilizer recommendation under integrated plant nutrition system for vegetable cowpea [Vigna unguiculata (L) Walp] in Ultisols of Kerala, India

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