Van der Laan, Michael; Bristow, K.L. (Keith); Stirzaker, R.J. (Richard John); Annandale, C.H. (Cornelius Henry)(Elsevier, 2017-01)
Food production comes at an ecological cost, and the lack of sustainability of South Africa’s crop
production systems is becoming increasingly worrisome. While small scale emerging and homestead
subsistence farming are ...