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This article is from ECHO Asia Note # 36. 介绍 土壤化学、物理学和生物学特征把土壤划分为高度适宜植物生长到高度不适宜植物生长。非常罕见能找到所有属性都高度适宜植物生长的原生土壤，尤其是在热带。但是，只要有充分的土壤厚度来提供一个足够深度和排水良好的根系区域，相应的改良和土壤属性管理能让几乎所有的土壤变得合适植物生长。甚至是自然状态下不肥沃的土壤和保水性特别低的土壤在合适的管理和投入之后都能有非常高的农作物产量。 土壤对植物生长的不利影响必须通过改良剂、物理处理（耕作）、改变土壤管理行为或这三种方式的组合来消除。例如，土壤板结只能通过翻耕土壤，...
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2015-01-20 The main objectives of The State of the World’s Soil Resources are: (a) to provide a global scientific assessment of current and projected soil conditions built on regional data analysis and expertise; (b) to explore the implications of these soil conditions for food security, climate change,...
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2019-02-13 Session: Soil degradation and rapid change are faced across Africa, and require attention to both old and new technologies. Over two decades of action research with farmers in Malawi has shown that smallholder food production and nutrition can be improved through biological principles and...
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Fundamental principles which underlie successful farming and gardening and, more important still, our health. “Is our health related to the soil?” the author asks. Although this may seem a radical question, the author presents evidence in abundance to show how closely plant growth is tuned in...
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Access Agriculture Training Video The clod breaker is a simple wooden tool made out of a cylindrical log with iron spikes. It can be pulled by animals or even by an adult person. By driving the clod breaker over your field in opposite directions, the soil will become loose, aerated and absorb...
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Access Agriculture Training Video Vermiwash is the liquid that is collected after water passes through compost made by earthworms. It is rich in plant growth hormones, micro-nutrients, and major nutrients like nitrogen, phosphorous and potassium. Available languages Arabic Bambara Bariba Bemba...
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Access Agriculture Training Video With empty fertilizer bags you can sew a container. Place layers of decomposable material in the container and water it. Put the earthworms in after one week. Cover the top of the bed with gunny bags and water it regularly. Make sure the compost is shaded from...
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Access Agriculture Training Video Onions have few roots and shallow roots and therefore can take up nutrients from the top soil only. This explains why it is crucial to pay particular attention to making your soil fertile when you want to grow onions. Available languages Arabic Bambara Bangla...
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Access Agriculture Training Video Stone lines induce a natural process of terracing as they trap sediments. They are also built to rehabilitate eroded lands. Farmers in Kenya show how they construct stone lines. Available languages Arabic English French Spanish
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Access Agriculture Training Video Integrated soil fertility management is based on maximising the use of organic fertilizers and minimizing the loss of nutrients. Available languages Bemba Chichewa / Nyanja Chitonga / Tonga English French Kiswahili Spanish Tumbuka
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