Thakur, R.C.Choudhary, Anil KumarCSK Himachal Pradesh Krishi VishvavidyalayaPalampur2017-06-032017-06-032003http://krishikosh.egranth.ac.in/handle/1/5810017302en-USRice-Wheat Cropping SystemStudies On Chemical Fertilizers Economy And Yield Sustainability Through Ipns In Rice-Wheat Cropping SystemThesis