Abstract

An experiment was conducted at the Instructional Farm, Navsari Agricultural University, Navsari (Gujarat) during kharif seasons of 2012 and 2013 on transplanted rice under rice-greengram cropping sequence in randomized block design with five treatments replicated four times. The treatment imparted to rice crop was integrated nutrient management viz., T1-General RDF (RDF: 100-30-00 kg N-P-K/ha+FYM @ 10 t/ha), T2-75% RDN through chemical fertilizer+25% RDN through biocompost, T3-75% RDN through chemical fertilizer+25% RDN through vermicompost, T4-75% RDN through chemical fertilizer+25% RDN through FYM and T5-Control. On the basis of pooled mean, the results indicated that application of general RDF (RDF+FYM @ 10 t/ha) recorded significantly highest grain and straw yields of rice as well as total NPK uptake by rice (grain and straw) than other treatments followed by 75% RDN through chemical fertilizer+25% RDN through vermicompost. However, maximum net returns and benefit ratio were noted with the application of 75% RDN through chemical fertilizer+25% RDN through biocompost followed by general RDF (RDF+FYM @ 10 t/ha).