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8 items found (Showing 1 - 8)
  1. Key Resource 2016-09-28 Farmers in many parts of the world, because of human population growth, have little choice but to crop their land continuously, with scarce resources to replace nutrients withdrawn by each successive crop. Crop residues are often lost as a source of organic matter and mulch, usually through...  
  2. Key Resource 2014-01-01 In order to achieve high levels of agricultural productivity in the tropics at the lowest possible economic and ecological costs, we need to properly understand the relationship between nutrients in the soil and crop productivity. For this to happen, the current understanding needs to change. The...  
  3. 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...  
  4. Key Resource 2019-05-21 Now available through Amazon as well as the ECHO Bookstore Smallholder farmers around the world face some of the harshest growing conditions globally, yet they produce the majority of the world’s food. Soils in these areas often lack nutrient and water holding capacities, due to erosion or poor...  
  5. 2010-01-01 This article is from ECHO Asia Note #4 Does rice straw have any value? Looking at the practices of most farmers, it seems not! The burning of rice straw is a common sight during the harvest period in many parts of Asia. Yet a number of farmers think otherwise. One of them is Isidro Prado from...  
  6. This article is from ECHO Asia Note # 36. Soil chemical, physical, and biological properties range from those highly favorable to plant growth to those highly unfavorable to plant growth. It is rare—especially in the tropics—to find a soil in its natural state in which all properties are highly...  
  7. 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...  
  8. 2017-01-20 Cette publication est le chapitre 2 de livre Options agricoles pour les agriculteurs de petite echelle est un livre rempli d'options pratiques pour ceux qui travaillent pour aider les petits agriculteurs et les jardiniers urbains dans les régions tropicales et subtropicales, dont beaucoup ont du...  

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