Natural resources, the soil is, the thin layer of organic and inorganic materials for the rocky surface of the earth. The bottom has a variety of factors and a time to process. Mechanical weathering of rocks by changes in temperature, wind, flowing water, lichens are a few factors.
Pollutants such as toxic chemicals, radioactive substances, salts, chemicals, when ingested on the floor, the deterioration of the quality of the content, structure and soil minerals. This leads to soil pollution. Soil contaminants disrupt the biological balance of the organism in the soil. The negative effect of this contamination is the fertility of the soil, which reduces influence the growth of plants and animals.
The main causes of soil pollution are:
* The random use of fertilizers
* The random use of pesticides, insecticides and herbicides
* Removal of large quantities of solid waste
* Deforestation and soil erosion
* Added industrial contaminants
* Introduction of radioactive waste
Control of soil pollution
Various measures proposed, soil pollution control:
Reduce the use of chemical fertilizers and pesticides:
As soil erosion has become a major concern, we must take the three Rs: reduce to Reduce, Reuse and Recycle, the use of fertilizers and pesticides.
Biofertilizers are the best alternatives to chemical fertilizers.
Practice of crop rotation – legumes can fix atmospheric nitrogen and thus to improve soil fertility.
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