Kamara, Alpha Yaya, F. Ekeleme, J.D. Kwari, L.O. Omoigui, and D. Chikoye. “Phosphorus Effects on Growth and Yield of Groundnut Varieties in the Tropical Savannas of Northeast Nigeria”. Journal of Tropical Agriculture 49 (November 9, 2011): 25–30. Accessed November 21, 2024. https://jtropag.kau.in/index.php/ojs2/article/view/233.