Studies on diversification and intensification of rice wheat cropping system under irrigated condition of Bihar

Abstract

A field experiment entitled Studies on diversification and intensification of rice-wheat cropping system under irrigated condition of Bihar was conducted at Bihar Agricultural College, Farm. Sabour, Bhagalpur (Bihar) during Kharif, rabi and summer seasons of 2013-14 and 2014-15. Soil of the experimental field was sandy loam in texture, soil was saline-alkali in reaction (pH 7.48), low organic carbon content (0.53 %), with low available N and medium P2O5, K2O and S (213.25, 23.59, 226.02 and 12.2 kg/ha, respectively). The experiment was laid out in Randomized Block Design with three replications. Total twelve cropping sequences were taken to constitute treatments for different intensification of rice-based cropping system viz. Rice wheat fallow, rice maize + potato - maize + cowpea, rice -wheat + fenugreek - mung bean, rice - potato + radish - onion + maize, rice - cabbage + radish - ladyfinger + mung bean, rice maize + potato - sorghum + cowpea, rice - maize + rajmash - maize + cowpea, rice - garlic + coriander - maize (grain) + cowpea, rice -wheat (Z.T.) - mung bean (Z.T.), rice - maize (Z.T.) - cluster bean, rice - oat (multi-cut)- pearl millet + rice bean and rice - chick pea + coriander - maize + cowpea. Individual plot was thoroughly prepared in each season to avoid mixing of soil. Cultivation practices were followed as per recommendation. The practice of weeding was applied after recording data on weed population. newline