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Research on soil fertility in Southern Africa: ten awkward questions
By raising important, sometimes ignored questions about research on soil fertility management in the subsistence, risk-prone maize-based cropping systems of sub-Saharan Africa, this paper seeks to improve the quality of ...
Conservation tillage or residue conservation? An evaluation of residue management in Mexico
The key to conservation tillage is the use of crop residues as mulch. However, there is some confusion over the term conservation tillage, among other things, because too much emphasis has been placed on tillage. Since ...