SHARIFULLAH SHARIFI, Y.S. SHIVAY, S.L. JAT, and HIKMATULLAH OBAID. 2001. “ Economic Optimum Dose of Potassium Fertilization for Enhancing Productivity and Profitability of Hybrid Maize (Zea Mays) under Semi-Arid Condition of Kandahar”. Indian Journal of Agronomy 64 (3): 410-13. https://doi.org/10.59797/ija.v64i3.5293.