1. Bunderson WT, Itimu OA, Saka AR, Phombeya HSK and Mbekani Y (1991) Optimum management practices for alley cropping maize with Leucaena leucocephala in Malawi. Paper presented at the Regional Agroforestry Symposium for the Miombo Ecozone, 16–21 June, Lilongwe, Malawi
2. CIMMYT (1992) 1991–1992 CIMMYT World Maize Facts and Trends: Maize Research Investment and Impacts in Developing Countries: Mexico, D.F.: CIMMYT, 57 pp
3. Cochran WG and Cox GM (1957) Experimental Designs. 2nd ed. John Wiley and Sons, New York, 611 pp
4. Conroy AC (1992) The economics of smallholder maize production in Malawi, with reference to the market for hybrid seed and fertiliser. PhD dissertation. University of Manchester, Institute of Development Policy and Management. Manchester, UK, 405 pp
5. Dhyani SK, Narain P and Singh RK (1990) Studies on root distribution of five multipurpose tree species in Doon Valley, India. Agrofor Syst 12: 149–161