TY - BOOK ED - Food and Agriculture Organization of the United Nations TI - Soil tillage in Africa T2 - FAO soils bulletin SN - 978-2-7592-0374-1 CY - Rome KW - SOL/TRAVAIL DU SOL/EAU DE RUISSELLEMENT/LUTTE ANTIEROSION/PRODUCTION ALIMENTAIRE/AGROFORESTERIE/GESTION DU SOL/TYPE DE SOL/DEVELOPPEMENT AGRICOLE/AFRIQUE/ZIMBABWE ER -