From the table 11 study. The farmer needs the knowledge of health effects as much as possible, with scores 4.60 respectively. Study the properties of disease control and prevention, insect pests and weeds, with scores 4.41 number three. To the knowledge of how to observe the symptoms of the disease and pest, with scores 4.02 and requires a knowledge of the type of pest control is minimal. Higher scores 2.60.
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