1. Biological nitrogen fixation and nitrogen and phosphorus budgets in farmer managed intercrops of maize-pigeonpea in semi-arid southern and eastern Africa;Adu-Gyamfi;Plant Soil,2007
2. Agricultural productivity in the tropics and critical limits of properties of Oxisols, Ultisols and Alfisols;Aune;Trop. Agric.,1997
3. Agronomics and economics of no-till facultative wheat in the Pacific Northwest, USA;Bewick;Crop Prot.,2008
4. Chigowo, M.T., Saka, A.R., 2011. The effects of reduced tillage on maize yield, soil water content, chemical and physical properties of soils at some selected sites in Malawi. Annual report of the soil physics unit. Bvumbwe Agricultural Research Station, Limbe, Malawi.
5. The impact of agricultural liberalization on food security in Malawi;Chilowa;Food Policy,1998