Possible Solutions to Remedy the Detrimental Effects of Soil Acidity on Tropical Agriculture
Arable tropical soils, which mainly consist of Oxisols and Ultisols but also include regions of Inceptisols and Alfisols, cover approximately one billion hectares; this area represents 33 percent of the total potentially arable land of this world which does not require irrigation. Most of these soils have optimum conditions for crop production, including low population density, excellent physical conditions, and a favorable climate (Van Wambeke, 1976). The main limitation of agricultural productivity and the reason that these tropical soils are underutilized for farming is soil acidity and its related factors. Improving the quality and yield of crops in these regions would do much to relieve the food pressures imposed upon us by the world's growing population. As stated by I.M. Rao, et al.:
It is particularly critical to realize the agricultural potential of Ultisols and Oxisols which remain idle in huge areas of the tropics...(but) we cannot repeat previous attempts to settle farmers in these areas before we have collected sufficient data and facts upon which we can honestly base our recommendations which guarantee a decent living from agricultural enterprise (Rao et al., 1993).
Therefore, it is of the utmost importance for us to find a feasible and cost-effective way to alleviate the problems of soil acidity on tropical agriculture.
Before the effects of soil acidity on tropical agriculture is examined, it is necessary to have a good background on what soil acidity is and how it occurs. Soils become acid because of vigorous leaching, coupled with the inputs of acids (substances capable of releasing positive hydrogen atom...
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Nierenberg, Danielle. "Factory farming in the developing world: In some critical respects, this is not progress at all." World Watch 1 May 2003: n. pag. eLibrary. Web. 3 Dec. 2013. .
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