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  1. 2013-02-20  
  2. Four nutrient deficiencies--phosphorus, potassium, nitrogen, and magnesium--can be diagnosed by observing maize leaves. This document includes photos of a healthy maize leaf and of maize leaves demonstrating each of these nutrient deficiencies. It also contains suggestions for how to address each...  
  3. 2018-05-30 This article is from ECHO Asia Note # 35. Dr. Michael Shafer is a retired Professor of Political Science from Rutgers University in the USA who founded the Warm Heart Foundation in 2008. After first learning about biochar at an ECHO conference in 2013, Warm Heart began to design and test improved...  
  4. 2004-01-20 The lablab beanLablab purpureus(orDolichos lablab) is a versatile subtropical and tropical nitrogen-fixing legume. It is a multipurpose legume that can be used as a cover crop, providing green manure, erosion control and weed suppression.  
  5. 2015-12-15 This article is from ECHO Asia Note #27 Microorganisms are defined as any living things too small for the eye to see; they include fungi, algae, and bacteria (Rao, 1995). These small organisms can be found everywhere: in water, air, and in the soil. On a farm, microorganism numbers are especially...  
  6. 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...  
  7. Key Resource 1996-09-01 Amazon.com Description Indigenous soil and water conservation practices are rarely acknowledged in the design of conventional development projects. Instead, the history of soil and water conservation in Africa has been one of imposing external solutions without regard for local practice. There is...  
  8. 2013-12-15 Running a Diesel Engine on Biogas Research Note: Creating an Optimum Potting Mixture for Resource-Constrained Growers  
  9. 2017-02-02 Soils of Mainland Southeast Asia Permaculture in Development Book Review: The Independent Farmstead  
  10. 2016-11-01 The session will discuss integrating conservation agriculture with soil and water conservation measures as well as other farming systems. Presenter:Neil Rowe Miller serves with Mennonite Central Committee as a technical advisor to conservation agriculture projects funded by the Canadian Food...