T20+Slides

T20+Slides - 1 Concept of Sustainable Development 2...

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2 Concept of Sustainable Development
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3 Management Strategies for Sustainable Agriculture Prevent erosion Maintain good soil physical properties - structure, bulk density, aeration and drainage Maintain or enhance organic matter concentrations Control insects, diseases and weeds without chemicals (IPM-integrated pest management) Maintain or enhance nutrient levels Minimize accumulations of plant/soil organism limiting compounds (e.g., acidity, sodicity) Prevent Soil Erosion
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4 Sources of Nutrients Green manure Animal waste Biosolids – sewage sludge
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5 In terms of nutrients, phosphorus is believed to be the most limiting resource with respect to future fertilizer supplies Water and Nutrient harvesting in “gavia” in Canary Islands, Spain Desertification Civilized man has marched across the face of the earth and left a desert in his footprints Historical records show that civilized man, with few exceptions, was never able to continue a progressive
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T20+Slides - 1 Concept of Sustainable Development 2...

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