Because in this era of Thai, we encountered a problem about the politics that affect poor countries with huge economic country Thai are living and daily expenses are higher, and there are many Thai people are farmers, as well as the home of the person as well as project preparation, we have seen that most of the agricultural work in this era use chemical fertilizer in cultivation, which are expensive and have a residue inside the body when the body is going to get a lot to cause disease.
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