1. Auerbach , R M B . 1989. “‘Cropping strategies for KwaZulu. Progress report. 1988/89’”. Pietermaritzburg: Institute of Natural Resources, University of Natal.
2. An experiment in low‐input maize production in KwaZulu∗
3. Auerbach , R M B . 1990c. “‘Cropping strategies for KwaZulu. Progress report, 1989/90’”. Pietermaritzburg: Institute of Natural Resources, University of Natal.