Manurial amendments and source of water for supplemental irrigation of sawah-rice system influenced soil quality and rice yield von Nnadi, A.L., Ugwu, V.U., Nwite, J.C., Obalum, S.E., Igwe, C.A., Wakatsuki, T.

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Soil fertility indices of tropical loamy sand as influenced by bambara groundnut variety, plant spacing and fertilizer type von Umeugokwe, C.P., Ugwu, V.U., Umeugochukwu, O.P., Uzoh, I.M., Obalum, S.E., Ddamulira, G., Karwani, G.M., Alenoma, G.

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