info:oai:icrisat:6200info:ofi/fmt:xml:xsd:journalNyamangaraJNyamangara, JMasvayaE NMasvaya, E NTirivaviRTirivavi, RNyengeraiKNyengerai, KEffect of hand-hoe based conservation agriculture on soil fertility and maize yield in selected smallholder areas in ZimbabweSoil & Tillage Research0167-1987201312619-25article