Effect of organic and inorganic nutrient management on nutrient use efficiency in sesame (Sesamum indicum L.)

Abstract

A field experiment was conducted during 2009-10 at Research Farm, Project Coordinating Unit (Sesame and Niger), Jawarharlal Nehru Krishi Vishwa Vidhyalaya, Jabalpur (M.P.) with 8 treatment combinations consisting of different nutrient management viz. T₁ - Control, T₂ - 100% RDF, T₃ - 50% RDF + 50% N through FYM, T₄ - 100% Recommended N through FYM, T₅ - 50% RDF + 50% N through VC, T₆ - 100% Recommended N through VC, T₇ - 50% RDF + 50% N through NOC, T₈ - 100% Recommended N through NOC in a randomized block design with three replications. Along 30 cm row spacing test varieties TKG-22 was sown in July, 2010 with fertilizers application. Application of 100% RDF through inorganics recorded the maximum NUE (84.66%). With regard to the organic sources 100% level of N through NOC recorded maximum NUE (78.53%) followed by vermi-compost and FYM sole (77.31%). Numerically higher values of NUE’s were observed with 50% RDF + 50% N through NOC (83.41%) followed by 50% RDF + 50% N through VC (82.19%) and 50% RDF + 50% N through FYM (79.75%) over control. Any marked deviation was not seen in the physico-chemical properties of soil after experimentation of sesame due to application of different treatments consisting of organic, inorganic and INM tested during the investigation.