1. 20/7/2010 Alkalinity of Urine. Urine in storage can reach a pH of 9.0. HIV/AIDS. A person reading a draft of the urine article asked whether HIV/AIDS would be a concern with the use of urine as a fertilizer. Controlling the Odor of Urine. Dr. Arnat Tancho recommends mixing a small amount of microbial...
  2. 20/7/2010 We often come across interesting material related to articles in EDN that could not fit into the available space in the issue. We share the most relevant of those here.
  3. 20/7/2010 One high quality and universally available source of all the major macronutrients (nitrogen, phosphorus and potassium) is human urine. Using human urine as fertilizer is not unprecedented, but for various reasons in most countries it is not commonly considered as an option, especially for growing...
  4. 1/4/2010 Este árbol, anteriormente clasificado como Acacia albida y también conocido como “manzana anular”, fue mencionado en un artículo sobre árboles agroforestales en EDN 84. El árbol muestra una fenología inversa de las hojas, perdiendo sus hojas al inicio de la estación lluviosa, justo cuando los...
  5. 20/4/2004 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...
  6. 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.
  7. 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.
  8. Recurso clave
    1/1/2002 Acidification of soil is a natural process with major ramifications on plant growth. As soils become more acid, particularly when the pH drops below 4.5, it becomes increasingly difficult to produce food crops. As soil pH declines, the supply of most plant nutrients decreases while aluminum and a...
  9. 20/7/2008 Farmers in Nigerused bottle caps to distribute tiny amounts of fertilizer in each planting hole. Coca cola bottle caps hold 6 grams (0.2 oz) of fertilizer, and one capful was used for two to three plants.
  10. 20/9/2011 This study, conducted at ECHO during the Summer of 2011, was carried out to compare eggplant fruiting response to varying rates of a standard mineral fertilizer versus 6 month old compost with 25% cow manure and 75% plant matter (evenly split between woody and green, leafy material). The high...