The chaekkrachai of particles the size of sand, flour of all 2nd & 3rd overall KT1 is irregular and unstable, which has recently decreased, and the alternating wide by deep and compare all 2 and 3 KT1. I found that the particle size of powder sand chaekkrachai is most of the Earth. When considering the effect of particle size analysis of the chaekkrachai of the land value and all 3 analyzed matches the type layer of soil texture triangle shows the relationship of the soil particles charged with use of criteria between agriculture, United States. (USDA textural class)
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