Changes in soil fertility and productivity of yellow Sarson as influenced by application of inorganic fertilizers and organic manure

Abstract

A Field trial was carried out to study the changes in soil fertility status and yield parameters of yellow Sarson treated with inorganic fertilizers and organic manure. Treatments comprised of recommended doses of N, P and K fertilizers (RDF) with or without FYM with different doses of S and Zn either alone or in combination. Comparatively more available nutrients (exchangeable NH4+, soluble NO3-, available P2O5, available K2O, soluble SO4-2 and DTPA-extractable Zn) are accumulated in T9 treatment which received RDF along with FYM at 5t ha-1 and S at 40 kg ha-1 and Zn at 10 kg ha-1. Combined application of N, P, K, S and Zn not only improved protein and oil content but also increased seed and straw yield of yellow Sarson. Economic analysis pointed out that benefit: cost ratio in T9 treatment is 1.50 which is the highest among all the treatment combinations under consideration.