Survey and mapping soil very fine garden area of longan of farmers. The objective is to use a data management land of farmers. Since the area is uneven.Space exploration and mapping of land of about 80 rai. Planning survey points to study the principle of every 100 cm. To study the morphological characters of soil depth 0-120 cm.And the soil types of soil. According to morphological characters. Soil types of soil, such as discrimination using the 1.Types of dirt on the 2. State of soil drainage 3. The depth of the alkaline soil and 4. The depth of the cut face soil
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