Singh ,J. P.Sekhon , Karamjit Singh2017-06-032017-06-032005http://krishikosh.egranth.ac.in/handle/1/5810014553en-USNutrient Management, Rice -Wheat Cropping SystemLong -Term Effect Of Integrated Nutrient Management On Organic Matter , Nitrogen And Micronutrient Cations Pools In Rice -Wheat Cropping SystemThesis