TY - TH AU - Mushayi,P.T. TI - Grain yield, leaf chlorophyll and nitrogen use efficiency in maize (zea mays L.) under smollholder farmer management and soil conditions in sub humid areas of Zimbabwe PY - 2001/// CY - Harare (Zimbabwe) PB - Zimbabwe University, KW - Crop management KW - AGROVOC KW - Data analysis KW - Integrated plant production KW - Plant production KW - Production factors KW - Zimbabwe KW - Soil fertility KW - Yields N1 - Nationality: ZW; Thesis (Ms. S.) Department of Crop of Science , Faculty of Agriculture, University of Zimbabwe, 2001 ER -