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Soils
Soils
Soils
Soils
Soils
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Soils

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  1. Soil Amendments<br />Africa’s low adoption rate of inorganic fertilizer use decreases agriculture productivity (yield/ha).<br />Currently, the US experiences negative environmental effects from over fertilization<br />The negative environmental effects from low fertilizer use are greater than the negative effects from high fertilizer use in Africa. <br />Currently fertilizers are 2 to 4 times more expensive in Africa than in developed nations.<br />US Aid in fertilizer would avert much of the so called “crisis.”<br />
  2. Zimbabwe Soil Fertility Study<br />Studies may incorrectly link soil nutrient depletion to deforestation<br />Gully development and deforestation easily linked<br />Nutrient depletion has numerous causes, more likely poor farming practices.<br />Farmers did not know that the pH level was extremely low.<br />Low pH will decrease availability of macronutrients and increase the availability of micronutrients to that of toxic levels.<br />http://www.fao.org/docrep/008/ae938e/ae938e06.htm<br />
  3. What is needed<br />Mineral Fertilizer Market<br />Particularly need Lime<br />Technology which makes use of Human Capital<br />
  4. Can it be done?<br />http://www.unmillenniumproject.org/reports/country_proc4.htm<br />
  5. Sesbaniasesban<br />Maize flourishes in the rainy season and the sesbania tree grows in the dry season fixing nitrogen in the soil and providing fuelwood for the household. <br />With one agroforestry technique both hunger and deforestation can be addressed. This is but one of the many appropriate technology solutions which we propose will alleviate current deforestation issues. <br />The tailored nature of this technological advancement reinforces the benefits of dispelling the current degradation narrative for the empirical, local land use research. <br />http://www.tropicalforages.info/key/Forages/Media/Html/Sesbania_sesban.htm<br />

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