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The Importance of Soil Organic Matter
Soil organic matter - the product of on-site biological decomposition - affects the chemical and physical properties of the soil and its overall health. Its composition and breakdown rate affect: the soil structure and porosity; the water infiltration rate and moisture holding capacity of soils; the diversity and biological activity of soil organisms; and plant nutrient availability. This document concentrates on the organic matter dynamics of cropping soils and discusses the circumstances that deplete organic matter and their negative outcomes. It then moves on to more proactive solutions. It reviews a "basket" of practices in order to show how they can increase organic matter content and discusses the land and cropping benefits that then accrue.--Publisher's description.
Great Ife
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A Dictionary of Food and Nutrition
This leading dictionary contains over 6,150 entries covering all aspects of food and nutrition, diet and health. Jargon-free definitions make this a valuable dictionary that clearly explains even the most technical of nutritional terms. From absinthe to zymogens, it covers types of food (including everyday foods and little-known foods, e.g. payusnaya), nutritional information, vitamins, minerals, and key scientific areas including metabolism and genomics.This new and fully revised edition features many entry-level web links, updated and conveniently accessible via the Dictionary of Food and Nutrition companion website, providing relevant extra information. Expanded appendices contain a wealth of useful material, including Recommended Daily Allowance lists.An essential A-Z for nutritionists, food manufacturers, caterers, health-care students, food science/technology students, and anyone who has an interest in, or enjoys, food and wants to find out more about what they eat.
Media Review
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Transport and Developing Countries
Examining the links between irregular and inefficient transport methods and economic progress, the author explains that it can only be effective if timing, location and technology are carefully chosen.
Media World Yearbook
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Growth in Sub-Saharan Africa
The paper investigates empirically the determinants of economic growth for a large sample of sub-Saharan African countries during 1981-92. The results indicate that (i) an increase in private investment has a relatively large positive impact on per capita growth; (ii) growth is stimulated by public policies that lower the budget deficit in relation to GDP (without reducing government investment), reduce the rate of inflation, maintain external competitiveness, promote structural reforms, encourage human capital development, and slow population growth; and (iii) convergence of per capita income occurs after controlling for human capital development and public policies.
