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Book (stand-alone)Maximizing the efficiency of fertilizer use by grain crops 1988
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No results found.This publication summarizes the findings of the Joint/IAEA division over the last 15 years on fertilizer application techniques on grain crops, with a view to maximizing its efficiency. -
Book (stand-alone)Efficient fertilizer use in summer rainfed areas 1988
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No results found.Summer rainfall areas are extensive in the tropical and subtropical zones of the world and account for a significant proportion of world food production. they are characterized by a limited period of adequate water supply for crop growth coinciding with high summer temperatures, and they tend to supper from high evapo-transpirational loss and year to year variability in rainfall amounts. Fertilizer use would give great scope for higher crop yields. -
Book (stand-alone)Efficient fertilizer use in acid upland soils of the humid tropics 1986
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No results found.Acid upland soils account for about half the land area of the tropics and for a very high proportion of the undeveloped land potentially available for arable cropping. Most of these soils are at present under virgin rain forest, with smaller areas under anthropic savanna, tree crops and shifting cultivation. The main reason for lack of development of these soils is that a high standard of management and costly inputs are needed to bring them into permanent arable cropping.
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