Rani S, Chhatwal N, Walia SS. Impact of Long-Term Organic Manure Application on Yield, Zinc, and Copper Uptake in Maize, Peas, and Mungbean (Vigna radiata L.) Cropping System. JSPAE. 2023;2(2):63-79. doi:10.56946/jspae.v2i2.231