Canh Tác Đất Khô
In every region of the world it is necessary to find or develop appropriate techniques for agriculture. A large part of the surface of the world is arid, characterized as too dry for conventional rain fed agriculture. Yet, millions of people live in such regions, and if current trends in population increase continue, there will soon be millions more. These people must eat, and the wisest course for them is to produce their own food. Yet, the techniques are so varied that only a very large volume would cover the entire subject. In many cases the most suitable techniques for a particular region may be those already developed by the local inhabitants. In some cases it will be difficult to improve on local techniques, but at times even simple and inexpensive innovations may be almost revolutionary.
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Tài Nguyên Chính14-11-2012 The UNCCD estimates that over 250 million people are affected by land degradation, and about 1 billion people in over 100 countries are at risk. According to the WMO, 33% of the world’s land surface is vulnerable to land degradation.Degraded lands lead to overall reduced productivity and reduced...
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Tài Nguyên Chính26-02-2014 Pastoralism is a livelihood whereby people depend upon herding domesticated livestock. In East Africa, pastoralists depend primarily upon cattle, sheep, donkeys, goats and camels— listed in order of least resilience as one moves into drier and more arid lowland areas. Pastoralists play an...
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Tài Nguyên Chính28-09-2016 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population growth, have little choice but to crop their land continuously, with scarce resources to replace nutrients withdrawn by each successive crop.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...
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16-12-2021 It is estimated that drylands occupy 40% of the earth’s surface.Drylands are regions where the average annual precipitation is less than 65% of the average annual potential evapotranspiration (an Aridity Index of < 0.65). The FAO Aridity Index is defined as a 30 year average of annual...
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Tài Nguyên Chính01-01-2007 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...
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Tài Nguyên Chính 01-01-1990 I often tell folks that ECHO specializes in growing food under difficult conditions. The pigeon pea, Cajanus cajan, is a prime example of a tough but nutritious plant for just such cases. This article is directed toward two audiences. For some of you, pigeon pea is already an important crop. You...
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Tài Nguyên Chính20-01-1992 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....
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Tài Nguyên Chính01-01-2010 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...
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Tài Nguyên Chính01-01-2011 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...
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Tài Nguyên Chính01-01-2013 “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...
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Tài Nguyên Chính21-03-2019 This Technical Note provides an overview of parasitic plants of agricultural significance in Africa. Parasitic weeds cause drought stress and stunted crops. Affected plants include cereal grains (e.g., sorghum [Sorghum bicolor] and maize [Zea mays]) and grain legumes (e.g., cowpea [Vigna...
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Tài Nguyên Chính23-07-2019 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...
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16-10-2020 Below is a summary of a seed trial report ECHO received in 2013 from Peace Corps Volunteer Chris Peterson, working in Uganda (Nalugala, Wakiso District). Sharing the results of Peterson’s efforts serves as an example of what to expect from a seed trial. Trying new crops can be very challenging,...
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ECHO publications referenced in this document include ECHO Development Notes (EDN), East Africa Notes (EAN), Technical Notes (TN), and ECHO East Africa Symposium (EEAS) presentations. Technical Notes and EDN issues can be found by clicking on the “Publications” tab on ECHO’s networking site,...
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20-04-2013 The article by Dov Pasternak about lablab (in this issue) reminded me of material in ECHO’s files from many years ago. Reimar von Schaaffhausen, working in São Paulo, Brazil, sent articles and letters over the years about the valuable role that lablab (and pigeon pea [Cajanus cajan]) have played...
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20-07-2005 “Gray water” (also “grey water,” “graywater” or “greywater”) is the term used to describe wastewater from dish washing, laundry, bathing, and rinsing. (Note: the term gray water does not refer to toilet waste, which is often called “black water.”) Although gray water does not need extensive...
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19-12-1998 Trees can be an effective source of mulch in drylands.
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19-10-1996 A Technical Note on Dry Farming Partially Buried Flower Pots or Tin Cans Save in Watering Capturing Water from Fog Drip Irrigation Book Reviews:Ways of Water: Run-off, Irrigation and Drainage and Vanishing Land and Water: Soil and Water Conservation in Dry Lands Book Review:Looking After Our...
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29-01-2019 More than 4 million people in the West African Sahel are facing hardship following dry spells and increased food prices. In June, the FAO sent nearly $10 million in aid for drought-stricken farmers in the region, who depend upon rainfed agriculture. Recurring drought, increased populations, and...
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19-10-1996 Zai Holes Harness Termites to Increase Crop Yields Grass Mulch: An Innovative Way of Gardening in the Dry Tropics Colored Plastic Mulches Thick Mulch for No-Till Gardens Rice Hull Mulch
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In every region of the world it is necessary to find or develop appropriate techniques for agriculture. A large part of the surface of the world is arid, characterized as too dry for conventional rain fed agriculture. Yet, millions of people live in such regions, and if current trends in...
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- English (en)
- Español (es)
- Français (fr)
- 汉语 (zh)
- ភាសាខ្មែរ (km)
- Kiswahili (sw)
- Bahasa Indonesia (id)
- ไทย (th)
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01-07-2013 Conservation agriculture (CA) has been promoted in East Africa through a number of initiatives over the past half year. In this article, we share what ECHO has gleaned from regional partners, in hopes that you can expand upon these successes and also promote further sharing on ECHO’s website....
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17-10-2018 The arid region directly south of the Sahara Desert (the Sahel), which stretches from Senegal to Ethiopia, has limited sources of fats and oils. Dairy products from cows and sheep are scarce and traditional oilseed crops are few. This is problematic for human health since fats and oils contain...
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19-01-2016 Prof. Dov Pasternak working in Israel, was among the pioneers of drip irrigation. He researched irrigation with saline water and conducted domestication of arid land crops. He received a UNESCO Chair for his work on desert research. For over 10 years Prof. Pasternak worked as Principal Scientist...
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20-07-2010 Looking for a nutritious legume that thrives in dry, cool conditions? You might want to tryCicer arietinum, referred to as chickpea and also by many other common names such as garbanzo, gram and bengal gram. Chickpea is noted for drought tolerance. It will produce a crop with an annual rainfall...
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19-05-1998 A conversation concerning the difficulty of obtaining mulch in semi-arid areas.
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ICARDA works with a tight focus on the problem-solving needs of resource-poor farmers, achieving this through the in-field delivery of its research outputs. Although global food production has increased by 20 per cent in the past decade, food insecurity and poverty remain widespread, while the...
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The International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) is an international non-profit organization that undertakes scientific research for development.
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06-03-2014 The HAFIR is an underground reservoir designed for storing rain water.Hafirs are usually constructed where there is enough rainfall and where there is no underground water.It is usually big enough to cater for the needs of the villagers and their live-stock for a whole season.
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Tài Nguyên Chính 01-02-1991 Food from Dryland Gardens encourages gardens that serve local needs, that are based on local knowledge, and that conserve natural resources and the biological diversity of traditional crops. It was written for field workers, extension agents, students, project workers, and program planners. Both...
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This group pageexists so that individuals involved in Dryland Farming around the world can connect. We encourage you to share the challenges you face in yourendeavors, discuss lessons and techniques learned through your experiences, and share your story!
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With research, training and advocacy, we help build climate resilience, productivity and equity in the dryland areas of East Africa, Ethiopia, the Sahel and Sudan
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01-11-2016 On average, crop yields under DER+ and TER+ increased by 30% and 16%, respectively, as compared to CT. Our study demonstrates that field water conservation tillage practices that incorporate CA principles are effectively increasing green water in the root zone available for crops. RCA systems...
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02-03-2016 Session: World Renew supports innovative ways to combat climate change. The presentation will dwell on lessons learnt from Conservation Agriculture promotion in pastoralist areas which will encompass adaptation, scaling up and extension methodologies based upon lessons learned from the field....
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04-02-2015
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15-11-2016 Understanding the dynamics of ecological design and agricultural practices connect at the point of design. Travel with us through our design process to create an ecologically balanced and appropriate diagram to implement, whether on small acreage or vast hectares of land. Learn the steps and...
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03-03-2016 Session: This session will demonstrate Pastoralist Managed Natural Regeneration, a new reforestation practice which is successfully reversing the rapid deforestation and desertification in dryland Africa. Pastoralist Managed Natural Regeneration (PMNR) has been shown to be a simple, income...
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29-12-2014 Agricultural Prosperity in Dry Africa contains a wealth of practical suggestions for dealing with the problems facing dryland farmers in Africa. He discusses crops, strategies, and technologies that lead to increased production and income for farmers with limited resources.
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“You must plant the rain before you plant a seed or tree!” proclaimed rain farmer Mr. Zephaniah Phiri Maseko of Zimbabwe. By doing just that, he and his family turned a wasteland into an oasis, raised groundwater and well levels even in dry years, reduced flooding in wet years, and enhanced the...
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08-02-2017 In marginal environments where strong crop-livestock interactions exist, inclusive and equitable access to finance, well-functioning land rental markets, and efficient provision of extension advisory services contribute significantly towards the shift to more sustainable land use management and...
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A farmer from Burkina Faso who popularized an ancient farming technique to reverse desertification is among the winners of Sweden's "alternative Nobel prize", announced on Monday. Yacouba Sawadogo shared this year's award with three Saudi human rights activists and an Australian agronomist. The 3...
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Rural Solutions is a video series that highlights solutions to specific challenges that are common in rural areas of developing countries. As natural resources become more scarce, herders who migrate seasonally have to travel long distances to find water and grazing land. Here is a solution to...
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Abstract, 2013,International Journal of Agriculture and Forestry Desertification, a phenomenon referring to land degradation in arid, semi-arid and dry sub-humid regions as a result of climatic variations and human activities, is considered as one of the most severe environmental and...
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The Journal of Dryland Agriculture (JODA) is an international journal that presents a platform for sharing and dissemination of knowledge in science and technology related to Dryland Agriculture and allied fields. It is a multidisciplinary journal that tries to promote good understanding of the...
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Tài Nguyên Chính 20-01-2019 The analysis in this report highlights that although these questions can be formulated in relatively simple terms, they certainly do not have simple answers. In fact, the two main conclusions that can be drawn from our research both highlight this point. First, the specific context in which a...
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Tài Nguyên Chính 01-01-1996 This is a book of practical ideas. It is written for people who help those who live and make their living under difficult conditions in the tropics and subtropics. What should a development worker do to assist a community? There are no simple answers, but there are many possibilities—plants,...
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Abstract,Agronomy for Sustainable Development, 2015 Dryland areas cover about 41% of the Earth’s surface and sustain over 2 billion inhabitants. Soil carbon (C) in dryland areas is of crucial importance to maintain soil quality and productivity and a range of ecosystem services. Soil...
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20-06-2006 Cuba's enforced ecological learning experience Input substitution or ecological agriculture? The transition process to ecological agriculture in Chiapas, Mexico Towards more sustainable livelihoods Beechenhill Farm finds an organic future Organising for organic agriculture in Tanzania Cabiokid,...
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The world’s drylands include hyperarid, arid, semi-arid and dry subhumid areas where rainfall is highly variable, droughts are common and water is the principal limiting factor for agriculture. Dryland soils, which are characterized by low levels of moisture, organic matter, and biological...
- Soil and climate conditions in India's drylands make them particularly well suited to organic agriculture. These marginal lands, with their marginal soils, tend not to respond well to intensive farming practices. They are actually better suited to low-input farming systems that make ample use of...
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01-01-2019 Understanding deserts and drylands is essential, as arid landscapes cover >40% of the Earth and are home to two billion people. Today’s problematic environment–human interaction needs contemporary knowledge to address dryland complexity. Physical dimensions in arid zones—land systems, climate...
- Thomas, Richard & El Dessougi, Hanadi & Tubeileh, Ashraf. (2006). Soil System Management Under Arid and Semi-Arid Conditions. 10.1201/9781420017113.ch4. Soil fertility in systems under arid and semi-arid conditions, hereafter referred to as dry areas or drylands, is constrained by...