Planting date and fertilizer type influenced soil quality indices and soybean (Glycine max L.) yields in derived savannah of Nigeria von Nwite, J.C.

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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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15-3 Aggregate associated soil organic carbon and total nitrogen in puddled rice sawah-managed soils in southeastern Nigeria von Igwe, C.A., Agharanya, K.U., Nwite, J.C., Obalum, S.E., Watanabe, Y., Wakatsuki, T.

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15-21 Comparative topsoil characterization of the representative inland valleys under the sawah system in Bida suburb, North Central Nigeria von Obalum, Sunday Ewele, Nwite, J.C., Agboola, A., Igwe, C.A.

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Long-term effects of lowland sawah system on soil physicochemical properties and rice yield in Ashanti Region of Ghana von Obalum, S. E., Oppong, J., Nwite, J. C., Watanabe, Y., Buri, M. M., Igwe, C. A., Wakatsuki, T.

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Variations in selected soil physical properties with landforms and slope within an inland valley ecosystem in Ashanti region of Ghana von Obalum, Sunday E., Nwite, John C., Oppong, James, Igwe, Charles A., Wakatsuki, Toshiyuki

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Effect of organic mulch materials on maize performance and weed growth in the derived savanna of south eastern Nigeria von Essien, B.A, Essien, J.B, Nwite, J.C, Eke, K.A, Anaele, U.M, Ogbu, J.U

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