proceedings of a collaborators' workshop on the DFID-supported project "Will women farmers invest in improving their soil fertility management? participatory experimentation in a risky environment Twomlow, Stephen J. creator ed. Ncube, Bongani ed. text mx Bulawayo, Zimbabwe International Crops Research Institute for the Semi-Arid Tropics 2001 2000 monographic spa 146 p. : gráfs. /by Stephen J. Twomlow and Bongani Ncube Agricultura sustentable Africa Mujer en agricultura Suelos Fertilidad Suelos Manejo 631.4 T8 9290664401 86391 010926 20220329142657.0