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  4. Farmers with limited resources have to deal with annual variations in climate such as drought, floods and catastrophic events. But sustainable practices which enhance resilency can also have a net effect of reducing CO2 in the atmosphere and slowing down global warming.  
  5. Farmers in many parts of the world, because of human population growth, have little choice but to crop their land continuously, with scarce resources to replace nutrients withdrawn by each successive crop. Crop residues are often lost as a source of organic matter and mulch, usually through...  
  6. Insects and other pests can be a serious constraint to food production, especially where resources for pest management are scarce. For example, inEDN 133, we responded to a question about problems with tomato leaf miner (Tuta absoluta) in Nigeria. Heavy infestations of this pest alone can reduce...  
  7. Smallholder systems exist under a broad range of climatic conditions. There are some basic considerations, however, that applyin nearly every set of conditions. Soil and water conservation Productivity of both crops and animals depends on the availability of water and fertile soil.Where there is...  
  8. This collection of farmer training materials was originally developed by Canadian Foodgrains Bank and African Conservation Tillage Network staff to support agricultural training projects in sub-Saharan Africa. The authors encourage agriculture development practitioners to submit ideas or requests...  

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