selected publications article Soil fertility management in Africa: a regional perspective 2003 Soil fertility management in semi arid areas of East and Southern Africa 2003 Use of the SCUAF model to simulate natural miombo woodland and maize monoculture ecosystems in Zimbabwe. Agroforestry Systems. 22:259-271. 1993 document Micro Doses, Mega Benefits Promoting Fertilizer Use in Semi-Arid Zimbabwe 2008
