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English Pages iii-vi, 3-637 [647] Year 1973
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Soils into which crop plants root and from which they obtain essential minerals and water contain huge arrays of microbe
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Soil is a complex body that exists as many types, each with diverse properties that may vary widely across time and spac
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Soil organic matter (SOM) is a key constituent of soil as it is a "revolving nutrient find" and improves soil
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Microirrigation has become the fastest growing segment of the irrigation industry worldwide and has the potential to inc
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Current trends in population growth suggest that global food production is unlikely to satisfy future demand under predi
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If the history of the twentieth century can be seen as a successful struggle to expand personal freedoms, then the histo
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