TY - BK TI - Improving food crop production on small farms in Africa T2 - GCP/RAF U1 - 338.06 PY - 1987/// CY - Rome (Italy) PB - FAO, KW - Africa KW - Cropping systems KW - AGROVOC KW - Crops KW - Extension activities KW - Food production KW - Seed production KW - Small farms KW - Socioeconomic development KW - Technology transfer KW - Trials KW - Plant breeding KW - Farming systems ER -