1964 items found (Showing 41 - 50)
Farmers and gardeners in semi-arid and arid regions of the world face two associated but separate problems, which limit the crops they can grow and the yield of these crops. The underlying problem is lack of rainfall needed for growing plants. The second is accumulation of salts in the root zone....
Using worms to create Living Soil results in : Nutrition: Delicious, nutrient-rich plants. Vitality: Plants growing in living soils are inherently stronger and need less protection, allowing low input food production methods to be used. Drought tolerance: Nutrients are in colloidal states rather...
Climate change will have a huge impact on the world’s poorest people. Crop yields have already gone down in the tropics and are projected to drop by 15-30% by 2080 in Africa, South Asia, and Central America (Hoffman 2013). Some countries could reach a 50% loss of agricultural productivity; in...
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...
Running a Diesel Engine on Biogas Research Note: Creating an Optimum Potting Mixture for Resource-Constrained Growers
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...
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...
Soils of Mainland Southeast Asia Permaculture in Development Book Review: The Independent Farmstead
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.
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...