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Rusinamhodzi, L and Corbeels, M and Zingore, S and Nyamangara, J and Giller, K E (2013) Pushing the envelope? Maize production intensification and the role of cattle manure in recovery of degraded soils in smallholder farming areas of Zimbabwe. Field Crops Research, 147. pp. 40-53. ISSN 0378-4290