Technical report

Modelling minimum residue thresholds for soil conservation benefits in tropical, semi-arid cropping systems

Date released
30 May 2007
Publication Code

M.E. Probert


Developing and promoting farming systems that make use of conservation tillage practices (minimum tillage, zero tillage) in combination with the retention of crop residues is a strategy being pursued by many national and international research organisations. This report describes a targeted modelling study that was implemented to explore the extent to which partial retention of residues might provide a way forward. The results of the study will contribute to the debate on the potential and limitations of the conservation agriculture concept in semi-arid tropical environments, particularly in drier, lower productivity areas.