00649nam a22002057a 4500 OSt 260724b |||||||| |||| 00| 0 eng d 631.83 K96E Kumari, Nisha Effect of NPK, Zinc and organic sources on Nitrogen fractions, use efficiency under Rice-Wheat cropping system in calcareous soil Kumari, Nisha Pusa, Samastipur PGCA, RPCAU 2025 125p. Msc. Ag. Soil Science 2025 Soil Science Rice-Wheat Cropping System NPK, Zinc and Organic Sources Thesis M. Sc. ddc T 52966 52966 0 0 ddc 0 0 RAU RAU 2026-07-24 0.00 631.83 K96E 86405 2026-07-24 2026-07-24 T By Author