Download Alleviating Soil Fertility Constraints to Increased Crop by F. Makken (auth.), A. Uzo Mokwunye (eds.) PDF

By F. Makken (auth.), A. Uzo Mokwunye (eds.)

Tropical Africa escaped from the glaciers that lined the temperate components of the realm in the course of the Ice Age. The legacy is that almost all of the mother or father fabrics of the soils of tropical Africa are previous, hugely weathered and with out bases and phosphate-bearing minerals. conventional farming platforms that have been quite sturdy and sustainable depended on lengthy fallow classes after one to 2 years of cropping to keep up the efficient skill of the soils. in recent years and particularly in densely populated components, a large type of 'landless' farmers have began to domesticate marginal lands or to invade the 'forest reserves' thereby exacerbating the issues of land and environ­ psychological degradation. of soil fertility that may facilitate the construction of enough amounts of the primary retaining a degree staples has develop into a big problem to agricultural scientists in tropical Africa. to extend the nutrient­ providing strength of soils calls for the inputs of fertilizers. those may be natural or inorganic. The potency with which those externally provided inputs can bring up agricultural creation and decrease soil and environmental deterioration depends at the skill of scientists to figure out the proper varieties and amounts of the goods to use to every soil, crop and cropping process in addition to the facility of farmers to obtain needful farm deal with­ ment skills.

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Additional info for Alleviating Soil Fertility Constraints to Increased Crop Production in West Africa

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Lawson TL and Juo ASR (1979) Climate and soil conditions in the Sub-humid and Semi-arid Regions of West Africa with special reference to maize production. A paper presented at the first SAFGRAD Maize Production Workshop, Ouagadougou, Upper Volta, Feb. 20-23, 1979 26. Lawson TL, Oguntoyinbo JS and Ojo 0 (1979) Agriclimatic conditions of West Africa. A paper presented at the IITA Annual Resear~h Conference on Soil and Climatic Resources and Constraints in Relation to Food Crop Production in West Africa.

June 29, 1988, Lagos Nigeria 33. Monteith JL (1977) Soil temperature and crop growth in the tropics. Pages 249-262 In: Lal R and Greenland DJ (ed) Soil Physical properties and crop production in the tropics. John Wiley & Sons, Chichester 34. Nguu NV, Alam MS and Lawson TL (1987) Effect of Climate on Response to Nitrogen and insect infestation in irrigated rice. Pages 107-114 In: Rijks R and Mathys G (eds) Proceedings of the seminar on Agrometeorology and Crop protection in the Lowland Humid and Sub-Humid Tropics.

For example , lack of adequate rainfall and high evaporative demand constitute major constraints in the southern Sahelian Zone while water logging caused by heavy rains and poor drainage are major problems on the heavy soils in some areas of the Northern Guinea Savanna Zone and perhumid area of the rainforest zone. For this reason reference will be made to specific climatic zone in the discussion of these constraints. l~~~~~~il ....... () IP~ET,'o< .... U> IP~ ET,. ,. , monlh,) r", SIAl...... n • • 'o< o..

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