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Nyamangara, J and Makarimay, E and Masvaya, E N and Zingore, S and Delve, R J (2011) Effect of soil fertility management strategies and resource-endowment on spatial soil fertility gradients, plant nutrient uptake and maize growth at two smallholder areas, north-western Zimbabwe. South African Journal of Plant and Soil, 28 (1). pp. 1-10. ISSN 0257-1862