Impact of NPK fertilizers on mustard ( brassica juncea coss )iii. Oil and nutrient content of seeds

Abstract

A field experiment following a pirtie.lly c D n t o u n d e d design w j s conducted to study the effect of NPK fertilizers on the oil and N, P, K, Ca and Mg contents of mustard seeds. Fertilizers showed an increase in oil content in most of the treatments, though not significantly. Increasing amount of eithar nitrogen or phosphorus decreased per cent oil content in seeds. However, both the nutrients together with potassium increased the same remarkbly. Concentration of N, P, K. Ca and Mg in seeds was not greatly influenced by fertilizer treatments. Effective oil yield was maximum in the plot receiving each of NPK at 131.4 kg/ha. However, from the economic point of view, the treatment of 134 4, 33 6 kg/ha of N and P, respectively, was considered to be the best.