In addition to protective chemicals to get rid of the pest residues in the environment. Chemical fertilizer to create pollution problems, with natural water source and health risk. Create a problem, an increase of nutrients in the Thai Gulf, too. Toxic algae problems, and added that one of the reasons why a large amount of chemical fertilizer, chemical fertilizers are in large quantities exceeding needs of plants has resulted in contaminated underground water has great Hotel Niagara falls. That created a risk to public health.
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