"Grain prices ngahung unearthed in the cave. Mae Hong Son province make historians assumptions that Siam rice farming land for more than 5, 500. In the past year, Thai farmers have never heard the term until the chemical officer, Ministry of agriculture, into the villages suggested that farmers know pesticides from abroad or people of short calls that "insecticide" with "drugs kill grass." since then "chemical became the breath of a great company.The country's central region rathai trok is very intense use of chemicals and has been extended to other sectors and the broad ranks of high chemical-based farmer. In the Asian region profoundly shows that if it is to continue like this. Soil quality. The health of farmers and consumers will lose and be a serious disease.
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