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Biochar is the carbonaceous solid product of biomass pyrolysis which can be used as chemical feedstock for various purposes such as energy production, and adsorption of pollutants. In particular, application of biochar to the soil is gaining greater interests, which can reduce fertilizer...
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It is difficult to rate the importance of the different soil functions, since all are vital to our well-being, to some extent. However, the function ofsupportingfood andagricultureworldwide is fundamental for the preservation and advancement of human life on this planet. Soil is also the basis...
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TheInternational Union of Soil Science (IUSS)- at its Seventh Congress, at Madison, Wisconsin, USA, in 1960 - recommended that soil maps of continents and large regions be published. As a follow-upFAO and Unesco decided in 1961 to prepare a Soil Map of the World at 1:5 000 000 scale. The project...
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The increasing degree and extent of soil degradation processes due to mismanagement and land use changes are threatening our soils. Urgent action is needed to reverse this trend if we are to ensure the necessary food production for future generations, mitigation of climate change, provision of...
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01 មករា 2017 Five of the top ten problems facing humanity (http: //cnst.rice.edu/content.aspx?id=246) over the next 50 years (food, water, energy, environment and poverty) are directly related to the health of soil resources. Several different factors, including: (a) excessive tillage; (b) inappropriate crop...
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01 មករា 2021 *Available as Download Only. This book emphasizes that soil productivity is considered an important factor for the success of agricultural production. The microbial community's composition and the diversity of agricultural soils primarily depend on management practices. Exogenous nutritional...
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01 មករា 2018 *Available as Download Only The respiration of forest soils and the major factors controlling its rate are fairly well understood. The process is of utmost significance because its balance with the fixation of CO2 in the biomass defines whether a particular site is a source or sink of atmospheric...
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01 មករា 1987 Soil is a universal building material and is one of the oldest known to humanity. Simple soils (without additives), or soils improved by adding stabilizing materials such as bitumen or cement, are suitable for homes, schools, roads, and other construction. For construction purposes, soil is...
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01 មករា 1984 Soil is one of the oldest building materials. It has been used for centuries in all parts of the world. Ancient temples, fortifications, and pyramids as well as part of the Great Wall of China were built with soil. The three traditional methods of soil construction are: adobe block or lumps built...
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07 មករា 2000 These pictures and the articles in this newsletter reflect the great diversity of concepts, approaches and practices that still exist related to healing people, animals, plants and environments. Vitality and health have a dimension beyond the purely physical and biological level. In most...