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34 items found (Showing 1 - 10)
  1. 1997-11-19 Discussion of possible disease organisms in manure. Many of us probably assume health problems originate when food is washed with contaminated water or because of poor human hygiene. However, it could also come from the use of manure as a fertilizer in the field.  
  2. 1981-12-19 This is a question we have been asking for some time. The idea is to prepare pellets using an appropriate technology pelletizer, using waste biomass or charcoal made from it. We do not have much to report at this time except that an engineer has designed and is making a simple pelletizer for us....  
  3. 2010-10-20 Photos of the modified seed dryer described in EDN 109  
  4. 2004-04-20 Terra preta is very productive soil with long-lasting fertility—unusual in the tropics, where most soils are very weathered, highly acidic, and low in organic matter and essential nutrients. The key to terra preta soils long-term fertility seems to be charcoal; terra preta contains up to 70 times...  
  5. 2011-07-20 We share many ideas in EDN for agricultural techniques that can increase crop production. Higher production translates into more food and potentially more income; this is very important, especially for farmers whose livelihood comes from a small piece of land.Another way to increase food supply...  
  6. 2005-07-20 Feedback from the ECHO networking with information on cookstoves and indoor pollution.  
  7. 1994-07-19 Nitrogen fertilizer should not be applied to trees and shrubs directly after transplanting.  
  8. 2004-01-20 The Malian Peanut/Groundnut Sheller is a simple machine, requiring less than $10 US of materials.  
  9. 2005-01-20 Maradi Integrated Development Project has forced me to question the wisdom of assuming that increases of organic content and fertility are always best.  
  10. 2014-04-20 Comfrey is a unique perennial plant that requires minimal maintenance after planting and that can give high, sustained yields of nutrient-rich leaves for use as fertilizer, animal feed and more. It is high in potassium (K) and other micronutrients, and seems to improve fruiting and disease...