Trace data from the Bureau of agriculture, growers, Nakhon Pathom year 2554 farmer households have grown vegetables with green leaves, all planted by households as 8604 normal number 8414 households planted a toxic number 186 households, and grow the organic four households in the battle of Kings.This is a reasonable example, but in this study, for example, green leaf vegetables, farmers grow a organic agriculture will keep all examples are 4 households, so the number of households that are taken from the formula as follows: 8604-4 = 8600 households, and brought into a formula to determine the.Population size of Taro Yamane (Yamane, 1973), so this will be a sample from the 383, in combination with the organic cultivation of 4 people will get a + 4 = 387 wujiaochang examples. When comparing the proportion in each district will be the size of the sample table 1, which is the amount of green leaf vegetables in Nakhon Pathom province, and then find out the proportion of vegetables the way normal, non-toxic and organic are the following. The number of farmers who cultivated common. 374 people, farmers grow a toxic amount of 9 people and farmers who grow the organic farming of 4 people.
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