1. 19/1/1997 Information about making bonemeal fertilizer from animal bones.
  2. 20/4/2001 Soil acidity, or low pH, limits plant growth in many parts of the world. Although low pH can harm plants in many ways, this article will deal only with one of these factors, aluminum (Al) toxicity.Al is the third most abundant element on the earth (after oxygen and silicon), and the most abundant...
  3. 20/1/2005 Maradi Integrated me ha forzado a cuestionar la sabiduría de suponer que los incrementos de contenido orgánico y fertilidad son siempre lo mejor.
  4. 20/7/2005 Joel Matthewsreceived some feedbackabout his comments on low fertility soil and traditional varieties in EDN 86. In response, he sent the following additional comment.
  5. 20/7/2007 This article takes a fresh look at what is going on in the soil, especially in relation to soil organic matter and the organisms it supports; how this life in the soil is impacted by our land care practices; and how it in turn impacts the productivity of our farms.
  6. 20/1/2017 Esta publicación es el Capítulo 2 de Opciones para los agricultores de pequeña escala es un libro lleno de opciones prácticas para aquellos que trabajan para ayudar a los agricultores a pequeña escala y jardineros urbanos en los trópicos y subtrópicos, muchos que luchan para producir suficiente...
  7. Comprender los tipos de suelo presentes en un lugar y cómo trabajar con el suelo para mantener y mejorar su potencial biológico es esencial para la producción sostenible de alimentos.
  8. In these proceedings of an international symposium held in Las Vegas, Nevada, October 1989, soil scientists from throughout the world present much of what is known about the special properties of the soils of the tropics
  9. This 1/2 day training gave abroad overview and introduction to some basic soil characteristics: phases (solid, liquid, gas), texture, density, structure, reaction (pH), plant-water relationships, organic matter, and nutrients. After some classroom discussion we went head out to into the ECHO Farm...
  10. A group of scientists, farmers and staff from development organizations in Malawi and Tanzania put together an integrated curriculum onagroecology,climate change,nutritionandsocial equity. This training material was written in such a way that rural people with limited education can use it to...