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  1. 1985-01-01 Green manure crops are crops that are [often times in North America] grown to be turned under to increase soil fertility. Leguminous green manure crops ( i.e., those which can make nitrogen fertilizers from atmospheric nitrogen) can offer small-scale Third World farmers a tremendous number of...
  2. 2012-01-01 Strong gradients of decreasing soil fertility are found in many regions of the world. Millions of smallholders are now facing this serious crisis which causes them lower crop yields, and many of these families also suffer from food insecurity. With the aim of promoting recovering soil fertility...
  3. 2002-01-20 The conventional view of the relationship between soil nutrients and crop productivity in the tropics is leading to both damaging agricultural policies and inefficient and damaging farm-level practices. There is no need to use the huge quantities of chemical fertilizers that are so often...
  4. 2016-04-08 A report from Roland Bunch regarding his efforts to promote green manures and cover crops in Africa.
  5. 2014-10-27 The following photos were all taken in the fields or homes of practicing farmers in Mexico, Guatemala, Honduras, Costa Rica, Haiti, Ecuador, Peru, Paraguay, Benin, Cameroon, Japan, Thailand and Indonesia
  6. 2010-12-20
  7. Key Resource 2009-01-20 All plants need certain mineral elements for proper growth, development, and maintenance. The basic structure of all organisms is built of carbon (C), oxygen (O) and hydrogen (H). Plants obtain these elements from water (H2O) in the soil and carbon dioxide (CO2) in the air, so no input is...
  8. 2011-07-01 This article is from ECHO Asia Note #10 Introduction During the late rainy season, the permanent hill fields that surround a cluster of hilltribe villages in the Chiang Dao district of northern Thailand radiate various hues of green. These verdant fields, belonging to ethnic Lisu, Lahu, Akha,...
  9. Key Resource 2001-03-01 Lessons learned in Latin America is about the use and dissemination of cover crops in different agroecosystems need to be made more widely available not only to Spanish speaking, but also Anglophone regions. This publication aims to inform a wide range of actors involved in rural development...
  10. Key Resource 2004-07-28 In the 1980s and 1990s, green manure/cover crop (GMCC) systems became a popular agricultural technology in research and development efforts for smallholder tropical and subtropical farmers. However, few syntheses of these experiences have been conducted. This volume of case studies contributes...
  11. Key Resource 1991-03-01 This book looks as methodologies for screening soil-improving legumes such as how to replenish nitrogen, which is often the limiting nutrient to plan growth, farmers in many cultures grew green manures, living crops whose primary purpose was to add nitrogen or organic matter to the soil.
  12. 2005-01-20 Green fertilizer is Fundamental #5. It feeds the next crop efficiently. As you plow crop residue into the soil it will eventually become humus and fertilizer for following crops. It is a form of composting, in which materials do not need to be transported to a mixing/composting site. You could...
  13. 2005-01-20 Cover cropping is Fundamental #7. It is the technique of growing plants that protect the soil to conserve topsoil and moisture. It can be considered a living mulch. Under sowing legumes below existing crops and other companion plants will work well. You get all the advantages of mulching; soil...
  14. This green manure cover crop selection tool is an interactive way to discover which varieties are appropriate for your unique situation. By changing the conditions and requirements a prioritized list of potentially appropriate crops is generated. Each of these plants can be sourced through the...
  15. AccessAgriculture Training Video Intercropping or rotating cereal crops with legume crops are two of the strategies of integrated striga and soil fertility management. But keeping quality legume seed has two major challenges. First, the seed easily loses its ability to germinate. And second, we...