Effect of Organic Weed and Nutrient Management Practices on Productivity of Maize Zea mays L and Their Residual Effect on Mustard Brassica juncea L Czern

Abstract

newline A field experiment entitled Effect of Organic Weed and Nutrient Management Practices on Productivity of Maize (Zea mays L.) and Their Residual Effect on Mustard (Brassica juncea L. Czern) was conducted during the year 2019-20 and 2020-21 at the Instructional Farm, College of Agriculture, Sumerpur with objectives to find out technically sound and economically viable organic weed management and organic nutrient management practices in maize and their residual effect on mustard. newlineThe experiment consisted of 30 treatment combinations was executed in split plot design with three replications assigning organic weed management treatments (6) in main plots viz., stale seedbed (SS) + two hoeings at 20 and 40 DAS, SS + hoeing with power weeder at 20 DAS + hoeing once at 40 DAS, SS +hoeing once at 20 DAS newline+ straw mulch at 5 t ha-1 at 30 DAS, SS + black plastic mulch at sowing (25 micron), weedy check and weed free check (up to 60 DAS) while organic nutrient management treatments (5) in sub plot viz., 100% recommended dose of nitrogen (RDN) through FYM, 75% RDN through FYM + seed treatment with beejamrut + two sprays of jeevamrut (at 500 l ha-1 at sowing and 30 DAS), 100% RDN through vermicompost, 75% RDN through vermicompost as basal + seed treatment with beejamrut + two sprays of jeevamrut (at 500 l ha-1 at sowing and 30 DAS) and 75 % RDN through vermicompost (75 % as basal + 25 % as top dress at 30 DAS) + seed treatment with beejamrut + two sprays of jeevamrut (at 500 l ha-1 at sowing and 30 DAS). The gross size of the main and sub plot was 90 m2 and 18 m2, respectively. The maize cv. Pratap Hybrid Maize 3 and mustard cv. Giriraj were used as test crops and raised as per package of practices recommended for the zone II b of Rajasthan. The lay out of the experimental site was prepared well in advance to incorporate the required quantity of well rotten FYM and vermicompost in respective sub-plots and irrigation was provided to prepare stale seedbed. The black polythene of 25 and#956; was spread at sowing while straw mu