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By Bernard Vanlauwe

Soil degradation and nutrient depletion became critical threats to agricultural productiveness in Africa. Soils can't offer the amounts of foodstuff required and yield degrees decline swiftly as soon as cropping commences. This publication addresses those concerns and comprises papers from a global symposium held at Cotonou, Benin, October 9-12, 2000, equipped through the foreign Institute of Tropical Agriculture, Ibadan, Nigeria and the dept of Land administration of the Katholieke Universiteit Leuven, Belgium. In 5 major elements it marks the tip of a primary section of collaborative examine on 'Balanced Nutrient administration structures for the wet Savanna and Humid woodland Zones of Africa' and concludes with innovations, offering crucial studying for crop and soil scientists.

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Additional info for Integrated plant nutrient management in sub-Saharan Africa: from concept to practice

Sample text

1990) Assessment of Nutrient Depletion in Sub-Saharan Africa, 1983–2000. Report 28. DLO Winand Staring Centre for Integrated Land, Soil and Water Research, Wageningen. Van Reuler, H. H. (eds) (1993) The Role of Plant Nutrients for Sustainable Food Crop Production in Sub-Saharan Africa. Dutch Association of Fertilizer Producers (VKP), Leidschendam, 170 pp. World Bank (1989) Improving the Supply of Fertilizers to Developing Countries. Technical paper No. 97, Industry and Energy Series, World Bank, Washington, DC, 102 pp.

Report 28. DLO Winand Staring Centre for Integrated Land, Soil and Water Research, Wageningen. Van Reuler, H. H. (eds) (1993) The Role of Plant Nutrients for Sustainable Food Crop Production in Sub-Saharan Africa. Dutch Association of Fertilizer Producers (VKP), Leidschendam, 170 pp. World Bank (1989) Improving the Supply of Fertilizers to Developing Countries. Technical paper No. 97, Industry and Energy Series, World Bank, Washington, DC, 102 pp. World Bank (1996) Natural Resource Degradation in sub-Saharan Africa.

Organic sources of plant nutrients should be fully exploited. However, it should be realized that they will not suffice to ensure required production increases, especially on soils of inherent low fertility. Soil Fertility Work in Sub-Saharan Africa 17 The Environmental Issue The increased use of fertilizers is sometimes questioned on account of possible negative effects on the environment. In some industrialized countries excessive or improper applications of plant nutrients, both in mineral and organic form, have indeed led to pollution or eutrophication of surface or groundwaters.

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