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Spain, James M. ,  Francis, C.A. ,  Howeler, Reinhardt H. ,  Calvo, FA ,  [Differential species and varietal tolerance to soil acidity in tropical crops and pastures] ,  Differential species and varietal tolerance to soil acidity in tropical crops and pastures

International Center for Tropical Agriculture ,  [Evaluating the impact of biotechnology on biodiversity: effect of transgenic maize on non-target soil organisms] ,  Evaluating the impact of biotechnology on biodiversity: effect of transgenic maize on non-target soil organisms

Mutiro, K ,  Murwira, HK ,  [The profitability of manure use on maize in the small-holder sector of Zimbabwe] ,  The profitability of manure use on maize in the small-holder sector of Zimbabwe

Ayuke, Fredrick O. ,  Rao, MR ,  Swift, MJ ,  Opondo-Mbai, ML ,  [Effect of organic and inorganic nutrient sources on soil mineral nitrogen and maize yields in Western Kenya] ,  Effect of organic and inorganic nutrient sources on soil mineral nitrogen and maize yields in Western Kenya

Nziguheba, Generose ,  Merckx, R. ,  Palm, C.A. ,  Mutuo, P ,  [Combined use of Tithonia diversifolia and inorganic fertilizers for improving maize production in a phosphorus deficient soil in Western Kenya] ,  Combined use of Tithonia diversifolia and inorganic fertilizers for improving maize production in a phosphorus deficient soil in Western Kenya

Kimetu, J.M. ,  Mugendi, DN ,  Palm, C.A. ,  Mutuo, PK ,  Gachengo, CN ,  Nandwa, SM ,  Kung'u, J.B. ,  [Nitrogen fertilizer equivalency values for different organic materials based on maize performance at Kabete, Kenya] ,  Nitrogen fertilizer equivalency values for different organic materials based on maize performance at Kabete, Kenya

Ojiem, JO ,  Palm, C.A. ,  Okwuosa, EA ,  Mudeheri, MA ,  [Effect of combining organic and inorganic phosphorus sources on maize grain yield in a humic-nitisol in Western Kenya] ,  Effect of combining organic and inorganic phosphorus sources on maize grain yield in a humic-nitisol in Western Kenya

Phiri, MAR ,  Chirwa, Rowland ,  Haugen, JM ,  [A review of seed security strategies in Malawi] ,  A review of seed security strategies in Malawi