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ECHO Technical Notes (Spanish)

အရင်းအမြစ်အားလုံးသို့ Spanish ဘာသာဖြင့် ပြန်သွားရန်





  1. Bamboo Load-Centered Wheelbarrow
    2023-12-20 A standard wheelbarrow, with the wheel at the front, places about half the weight of the load on the operator. A load-centered wheelbarrow places the wheel in the center of the load, shifting 90% or more of the weight to the wheel instead of the operator. This allows the device to be used for...





  2. Animal Production Litter Systems
    2023-11-21 Litter systems are an approach to hygienic, integrated animal production in which animals are raised in an enclosed space on a floor of organic bedding. Systems with thick bedding material are sometimes called deep litter systems. Litter systems allow you to prioritize animal health by providing...





  3. Black Soldier Fly Larvae Production
    2023-06-09 This guide expands on a summary by Chalermliamthong and Trail (2021) of the black soldier fly larvae production system at the ECHO Asia Small Farm Resource Center in Chiang Mai, Thailand. The production system there serves as an approach for scaling up larvae production as an alternative protein...





  4. Integrated Pest Management
    2022-05-20 The current global situation calls for a multi-pronged approach to pest management. To be widely applicable, this approach must provide farmers with options to control pests at various scales of production (from small farms to very large operations) with a diversity of resources. Integrated pest...





  5. Small-Scale Nursery Management
    2021-03-29 Cultivating plants, sharing seeds and cuttings with neighbors, and seeking better crop varieties are as old as agriculture. We use the word “nursery” for places where we care for and nurture things that are precious and vulnerable, like children and plants. Creating habitats to grow healthy...





  6. Earthbag Seed Banks
    2020-06-29 Seed storage in the tropics has been a frequent topic of ECHO publications and trainings due to its importance to the smallholder farmer. Access to quality seeds is imperative for agronomic and horticultural crop production. While on-farm seed saving benefits the smallholder farmer, cooperative...





  7. 100-Fold Vegetable Gardens with Low-Cost Wicking Beds
    2019-07-23 I discovered 100-fold gardens while researching ways to irrigate plants directly in the root zone. I wanted to know how to practically and affordably control some of the variables that influence plant growth, such as water availability and soil fertility. I read about “wicking beds,” which are...





  8. Vacuum-Sealing Options for Storing Seeds
    2019-01-07 Two broad categories of seeds exist, referred to as recalcitrant and orthodox. The former must be kept moist and planted soon after they are collected; large-seeded fruits such as mango and avocado are typical examples. The second type of seeds are discussed in this document. Orthodox seeds are...





  9. Bamboo for Construction
    2018-05-17 Many plants deemed as invaluable for the smallholder farmer offer nutritious food for the family, fodder for animals, or timber for construction. Remarkably, bamboo offers all three of these assets from the same perennial plant! This Technical Note will focus on how to most effectively harvest,...





  10. Underutilized Crops for Small Farm Abundance
    2018-02-09 Traditional diets included a wide variety of ingredients from myriad wild and domesticated plants. Regional cuisines were shaped by native species in their local environment and by gradually-adopted plants from distant places. The modern global food system and market pressures have reversed this...





  11. Women and Agriculture
    2017-06-06 A version of this material first appeared in EDN 134. Gender dynamics in relation to agriculture is a big topic, and one we had not previously written about in EDN. In recent years, widespread attention has been paid to the disparity that often exists between men and women when it comes to...





  12. Seed Drying Cabinet
    2002-01-01 Seed storage is often a problem in the tropics. However, if seeds can be properly dried, they will remain viable for a longer period of time. The seed drying cabinet described here can help improve the viability of seeds in storage. What's Inside: Introduction Description Diagram Observations





  13. Understanding Salt-Affected Soils
    2016-08-17 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....





  14. Agriculture Extension with Community-Level Workers: Lessons and Practices from Community Health and Community Animal Health Programs
    2015-11-04 Active learning and exchange of knowledge are key to farmer adoption of beneficial agricultural innovations. Community health worker (CHW) and community animal health worker (CAHW) programs have led to a rich body of knowledge about extension, much of which is applicable to efforts aimed towards...





  15. SRI, the System of Rice Intensification: Less Can be More
    2015-09-21 The System of Rice Intensification (SRI) is a method of raising rice that produces substantially higher yields with the planting of far fewer seedlings and the use of fewer inputs than either traditional methods (i.e., flooding) or more “modern” methods (using mineral fertilizer or...





  16. Introduction to Tropical Root Crops
    2015-02-16 Tropical root and tuber crops are consumed as staples in parts of the tropics and should be considered for their potential to produce impressive yields in small spaces. They provide valuable options for producing food under challenging growing conditions. Cassava and taro, for instance, are...





  17. Seed Fairs: Fostering Local Seed Exchange to Support Regional Biodiversity
    2014-06-01 When you come across an especially promising local variety of a crop grown in your area, how can you enable other farmers to try out this variety? If a farmer gives you 30 seeds of an exceptional variety, how might you go about distributing these? How does seed flow happen in and among...





  18. Nutrient Quantity vs Access
    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...





  19. Zai Pit System
    2013-01-01 “Zai” is a term that farmers in northern Burkina Faso use to refer to small planting pits that typically measure 20-30 cm in width, are 10-20 cm deep and spaced 60-80 cm apart. In the Tahoua region of Niger, the haussa word “tassa” is used. English terms used to decribe zai pits include “planting...





  20. Charcoal Production in 200-Liter Horizontal Drum Kilns
    2016-02-05 Until recently, firewood was taken for granted in northern Thailand. With vast forests full of many types of trees, upland households could afford to be choosy concerning the wood they used for cooking. However, in recent years, more and more communities are facing restricted access to forest...





  21. Biochar: An Organic House for Soil Microbes
    2013-06-01 Rick Burnette wrote an article for Issue 7(July 2010) of ECHO Asia Notes, titled “Charcoal Production in 200-Liter Horizontal Drum Kilns.” My article takes the charring process a step further by exploring the rapidly re-emerging world of biochar. Biochar is a form of charcoal, produced through...





  22. Sloping Agricultural Land Technology (SALT)
    2012-01-01 Asia makes up less than one third (30%) of the world’s land area and yet carries over half (56%) of the world’s population. Moreover, the average population density of Asia becomes a significant long-term problem when food production is considered. Some countries in Asia have a population density...





  23. Foundations for Farming (FFF)
    2012-01-01 Dawn Berkelaar, working with Dr. Martin Price and Danny Blank, featured this farming system in EDN 98. At that time, the technique was known as “Farming God’s Way” (FGW). Subsequently, the name was changed to “Foundations for Farming” (FFF); however, it continues to also be promoted as FGW. FGW...





  24. Water Harvesting through Sand Dams
    2011-01-01 A sand dam is a reinforced concrete wall built across a seasonal river to hold underground water in sand (see above photo of Nzaaya Muisyo sand dam, Eastern province, Kenya). It is initially built one meter high and up to 90 meters across. During the heavy and erratic seasonal rains, the water...





  25. Tree Gardening
    2011-01-01 Lack of food security is one of the biggest challenges that Central Africans face each day as they toil in their gardens, trying to produce enough food to simply feed their families and afford other expenses in life such as health care or schooling for their children. Main factors limiting...





  26. Introducing A New Fruit Crop
    2011-01-20 Over the past 30 plus years that we have been working with small-scale farmers in Central Africa, we have enjoyed the wonderful lushness of its forests, savannahs, and rivers. In addition, we have been privileged to get to know some of the many people groups, with their different cultures and...





  27. Farmers' Seed Fairs
    2011-01-01 Often farmers asked for seed, but we weren’t quite sure what to expect when we suggested—to the farmers’ union in Nampula, Mozambique—that they organize a fair in which the members could come together and exchange seed. They might only be interested in “improved” varieties. However, when we...





  28. Vermiculture Basics & Vermicompost
    2010-08-01 Worm or vermiculture is a useful technique for recycling kitchen and livestock wastes into a rich organic fertilizer, for producing high-protein feed for poultry and initiating a lucrative business selling worms and worm castings for the small farm. Worms are invaluable partners in building the...





  29. Farmer Managed Natural Regeneration
    2010-01-01 For many years, conventional Western forestry methods have been applied, and exotic tree species promoted in Sahelian countries in order to combat desertification. Large and small projects were commissioned to curtail the assumed southward movement of the Sahara desert, but few made any lasting...





  30. Fish Farming: Basics of Raising Tilapia & Implementing Aquaculture Projects
    2010-07-01 Fish farming can generate high interest and excitement. It has great potential to produce high quality protein in relatively short time periods and in small areas. Fish farming is one way that resource poor farmers throughout the world can provide protein that is often lacking in the family diet...





  31. Seed Saving: Steps & Technologies
    2010-06-01 Seeds naturally have a place in almost any endeavor having to do with agricultural development. Seeds of most food plants are small and, as such, are more easily transported and can be shipped longer distances than vegetative cuttings. For the farmer, seeds represent the promise of a continued...





  32. TN #60 The Farmer Managed Agro-forestry Farming System (FMAFS)
    2010-01-01 Farming communities in the semi-arid tropical regions of Africa are becoming particularly vulnerable and face enormous challenges for their survival. Climate change, diminishing and unreliable rainfall, traditional mono culture cropping farming practices, high population growth, frequent famines...





  33. Tropical Rabbit Production: A Guide to Raising Rabbits with Few Resources
    2009-03-01 Rabbits are animals for folks that like to eat meat and want to raise it quickly. Rabbits reproduce quickly; up to eight bunnies every three months. A young rabbit can weigh four pounds in three months -- bigger than a broiler chicken. Rabbits are easy to raise, both in urban and rural areas....





  34. An Introduction To Soil Fertility
    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...





  35. Lagos Spinach
    2007-01-01 In a world where hunger and poverty are issues with a large percentage of the population, technology and education are wanting, and agricultural resources are often scarce, a farmer is thankful for low-maintenance crops that will grow with a minimal input of effort and resources. Lagos spinach...





  36. A-Frame Level
    2006-01-01 The A-Frame Level is a simple, yet accurate tool used for constructing contours on a hillside or slope. It is useful in the basic construction of hillside farming systems, such as the SALT systems, as well as for establishing level contours and drainage ditches. Level contours on a slope reduce...





  37. Chaya
    2006-01-01 Dr. Martin Price, co-founder of ECHO and former head of ECHO’s Agricultural Resources Department, has said, “I would consider chaya to be one of the five most important underutilized food plants ECHO distributes. I give it this rank because of its ability to thrive in both arid and rainy regions,...





  38. Moringa Water Treatment
    2005-03-01 In addition to food, shelter and clothing, water is one of our basic human needs and lack of potable water is a major cause of death and disease in our world. The purpose of this document is to provide information on household water treatment using seeds of the Moringa oleifera tree. Using...





  39. Moringa Leaf Powder
    2005-01-20 The leaves of the Moringa oleifera tree are very nutritious. They can be consumed fresh, cooked or dried. Since dried Moringaleaves retain their nutrient content, it is possible to convert them into leaf powder. When there is an abundance of leaves, this leaf powder can be made and stored easily....





  40. Methane Digester
    2001-01-01 When organic material decomposes under anaerobic conditions, it produces biogas which is a mixture of methane (CH4) and carbon dioxide (CO2) with small quantities of hydrogen, nitrogen, carbon monoxide and other compounds. Biogas can be used as a fuel source for cooking, heating, producing light...





  41. BioSand Water Filter
    2001-01-01 Access to clean drinking water remains one of the greatest challenges in the world. The BioSand Filter is one method that can be used for purifying water at the household level. With this filter, contaminated water is filtered through a natural biological layer and then layers of sand, pebbles...





  42. Sawdust Cookstove
    2001-01-01 There are many variations of sawdust cookstoves that have been used for many years both in North America and around the world. This sawdust cookstove model provides a low-cost, low-input method for producing a high intensity flame that will burn for up to five hours. The flame burns fairly clean...





  43. Introducing New Seeds Overseas
    2000-01-21 ECHO is frequently asked, by groups or individuals from North America, to suggest vegetable seeds to take with them on short trips overseas. Often the group is a “work team” that is being sent by a church. Someone with the group they are going to visit has asked them to bring vegetable seeds. Or...





  44. Banana, Coconut & Breadfruit
    1998-06-01 There are more than one hundred major species of fruits in the tropics, which make a very interesting contribution to the appetite as well as to good nutrition. These species vary in ecological requirements, in season of production, in yields, uses and, of course, in many other characteristics....





  45. Rooftop and Urban Gardening
    1996-01-01 What can a family do if the national unemployment rate is over 50%, wages are a dollar or two a day, prices of food are increasing and may at times be even higher than in the USA, they have neither savings nor credit and there is no governmental safety net? For many, an option of last resort is...





  46. Small Farm Resource Development Project
    1993-06-01 During the course of each year a number of individuals working in community development spend some days studying and planning at ECHO. In reality their felt need is not so much for a bit more knowledge (study), but for a project plan for how they are going to proceed to help local farmers. A...





  47. Agriculture in Times of Climate Change
    2013-04-16 Smallholder farmers and agricultural development workers are reporting changes in climate. For example, during the 2012 ECHO Agricultural Workshop in Asia, 63 attendees representing at least 25 agriculture and community development organizations from across Myanmar were polled about their...





  48. Agroforestry Principles
    1992-01-20 In simplest language, agroforestry is the production of trees and of non-tree crops or animals on the same piece of land. The crops can be grown together at the same time, can be grown in rotation, or can even be grown in separate plots when materials from one are used to benefit another....





  49. Selecting the Best Plants for the Tropical Subsistence Farm
    2007-01-01 By Dr. F. W. Martin. Published in parts, 1989 and 1994; Revised 1998 and 2007 by ECHO Staff Though nearly all plants are useful in some way, they are not equally valuable. For example, wheat, rice and corn may be considered the most valuable plants in the world based on the vast acreage planted...





  50. A Beginners Guide to Small-Scale Tropical Agriculture
    So you want to help people in the tropics. Beautiful! The tropics are waiting for you. No matter what your abilities, you can make life better for others in the tropics. Your concern for the physical and spiritual well-being of people can be translated into fruitful service. Your first asset is...





  51. The Moringa Tree
    1985-06-01 The moringa tree, Moringa oleifera, has probably been the most popular plant in ECHO's seed bank of underutilized tropical crops. The tree is native to India but has been planted around the world and is naturalized in many locales. Moringa goes by many names. In the Philippines, where the leaves...





  52. Green Manure Crops
    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...





  53. Neem
    1984-04-20 This technical note was published in the early 80's when there were relatively few sources of information on, or seed for the the neem tree. In recent years much progress has been made in each of these areas. The information contained in this technical note is still quite valuable. A good source...