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close this bookSustainable Management of Soil Resources in the Humid Tropics (UNU, 1995, 146 pages)
close this folderVIII. Nutrient management
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View the documentA. Chemical fertilizers
Open this folder and view contentsB. Reducing nutrient losses
View the documentC. Biological nitrogen fixation (BNF)
Open this folder and view contentsD. Nutrient cycling