The area planted.The area planted is another major factor of production, food security, which is an important issue to consider.Is the area planted, there must be no risk of hazardous material that will cause a residue or contamination in the output. Need to know the history.Utilization of land area. If you have ever done before ... The plants planted type must be specified. How long did the planting. Check the history of the use of agricultural chemicals in the area where the pest is found. The cause of the liquidation If you use these lands. for long periods of time and with a lot of chemicals used. It may be an area vulnerable to contamination of agricultural chemicals.
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