Changes In Availability of NPK and S as Influenced by Incorporation of Organic Amendment Purna-11 in Vertisol

A field experiment was conducted on clayey soil (Typic chromustert) to study the effect of organic amendment Purna-11 with and without fertilizers on NPK balance in soil. Application of organic amendment Purna-11 have positive effect on availability of nutrients in soil. Nitrogen, Phosphorus and sulphur status of soil increased significantly with the application of Purna-11 @ 150 kg ha^{-1 with 100 per cent RDF. In case of potassium an application of FYM @ 10 t ha-1 recorded significantly higher availability in soil followed by application of Purna-11 @ 150 kg ha-1.}