Dhaka, A. K.Verma, Gaurav2024-04-152024-04-152023-01https://krishikosh.egranth.ac.in/handle/1/5810208285Globally, intensive tillage and imbalanced nutrition challenged the sustainability and profitability of crop production and soil health. There is ample scope to boost the crop productivity and soil health by adopting organic and conservation agriculture. Hence, this study was conducted during 2020–21 and 2021–22 at Agronomy Research Farm of the Chaudhary Charan Singh Haryana, Agricultural University, Hisar, Haryana (India) to study “Organic nutrient management in of soybean-wheat cropping system under conservation agriculture” The experiment comprised of four tillage and residue management practices in main plots and five organic nutrient management packages in sub plot was laid out in a split plot design with three replications. Two years study resulted that among tillage and residue management practices, crops under soybean-wheat rotation sown under zero tillage along with residue retention (3 t/ha) recorded significantly higher growth parameters, seed yield (16.34 and 54.48 q/ha for soybean and wheat, respectively) and net return (53.62×103 and 148.12×103 ₹/ha for soybean and wheat, respectively), which was closely followed by conventional tillage + residue retention (3 t/ha). Among the organic nutrient management packages, significantly higher yield attributes number of pods/plant (69.8) in soybean and grains/spike (50.1) in wheat and seed yield (16.35 and 53.53 q/ha for soybean and wheat, respectively) were recorded under application of RDF through fertilizers closely followed by RDN given through vermicompost or FYM + biofertilizers + three foliar application of each cow urine (10%) + panchgavya (5%) + jeevamrut (500 l ha-1). However, RDN through FYM or vermicompost + biofertilizers + three foliar application of each cow urine (10%) foliar application + panchgavya (5%) + jeevamrut (500 l ha-1) was found economically profitable over RDF given through fertilizers. Crop rotation based finding concluded that sowing of crops in soybean-wheat rotation with zero tillage along with residue retention (3 t/ha) and fertilized with recommended dose of nitrogen given through FYM + three foliar spray of each cow urine (10%), panchgavya (5%) and jeevamrut (500 l ha-1) was found most profitable having highest system net return (271.49×103 ₹/ha) and system profitability (756.56 kg/ha/day) with increase of 14.0 and 29.1 percent, respectively over crops sown with conventional tillage without residue and fertilized with recommended dose of fertilizers. Hence, it may be concluded that combined application of ZT+R (3 t/ha) and organic package N5 or N4 is a better option for obtaining higher yield, sustainable soil health, improved energy use efficiency and better economics of soybeanwheat cropping system.EnglishThesis