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 coated the temperate components of the area throughout the Ice Age. The legacy is that almost all of the guardian fabrics of the soils of tropical Africa are outdated, hugely weathered and with out bases and phosphate-bearing minerals. conventional farming structures which have been particularly strong and sustainable trusted lengthy fallow sessions after one to 2 years of cropping to take care of the effective means of the soils. lately and particularly in densely populated parts, a colossal category 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 would facilitate the construction of enough amounts of the primary retaining a degree staples has develop into an enormous problem to agricultural scientists in tropical Africa. to extend the nutrient­ offering strength of soils calls for the inputs of fertilizers. those may be natural or inorganic. The potency with which those externally provided inputs can elevate agricultural creation and decrease soil and environmental deterioration relies at the skill of scientists to figure out the appropriate kinds and amounts of the goods to use to every soil, crop and cropping procedure in addition to the power of farmers to procure considered necessary farm deal with­ ment skills.

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Extra resources for Alleviating Soil Fertility Constraints to Increased Crop Production in West Africa

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A. U. ). Alleviating Soil Fertility Constraints to Increased Crop Production in West Africa, 33-44. © 1991 Kluwer Academic Publishers. L. K. Sivakumar 2 1 Agroclimatologist, International Institute of Tropical Agriculture, Ibadan, Nigeria 2 Principal Agroclimatologist, ICRISAT Sahelian Center, Niamey, Niger Key words: Sub-Saharan Africa, climate, rainfall, erodibility, mulch Abstract The alarming food deficits projected for sub-Saharan African from recent production figures make it mandatory that no effort be spared in reversing the trend of declining yields.

IFDC-Africa initiatives and interventions to improve fertilizer dissemination and technology transfer are outlined in Figure 3. The training initiatives to improve fertilizer technology transfer at national levels are part of an integrated approach that initially involves senior extension personnel to identify the training needs of field personnel and to participate in the development and implementation of in-country training programs. In September 1988, IFDC organized a Workshop on Fertilizer Technology Transfer which brought together senior personnel involved in technology transfer in seven West African countries.

Lawson, UTA, Ibadan Nigeria). The higher amount and frequency of rains with such intensities in these wetter regions accentuate the associated problem of runoff and erosion. Soil loss values ranging from 11 to 33 t/ha/yr on a 5% slope under maize-maize and cassave respectively have been reported [1]. 6 tlha/yr while on bare soils at Sefa, Senegal, a much higher value of 21 tlha/yr under a higher mean rainfall of 1300 mm has been observed [4]. The general consequence of these soil losses is the rapid degradation and losses of productive capacity of the land over time.

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