Researchers used a tool to research and collect the following information: 1. interviews using questionnaires with green vegetables and a number of farmers who learn by observing 387. Inquiries and take notes from the farmers. 2. to store, for example, the green leaf vegetables. Collected from the green leaves of the plant conversion farmers who gave interviews. By green leaves collected from every Groove Groove Groove or Groove, except leave 2-3 Groove choose a sample that is not medium-small size isn't too big. Random storage quantity, for example, the set is not less than the green leaves that are no more than 25-50 grams of weight, volume, for example, 1 kg of vegetables with a large 500 gram weight is 2 kg, such as cabbage. White lettuce and plant operation Apium graveolens is Luke like green onions. Etc., 0.5 kilograms (irrigated the 15 offices, 2554).
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