Main soil: gray clay, gray-yellow clay, and sand clay of paddy field; gray-red soil, red soil, crimson soil of hilly country. Meanwhile, the soil distinguished sandiness soil, powder sandiness soil, and clay loam by quality of a material.

Their characteristic are:

Sandiness soil: good aerate capability, feebleness ability of keep moisture and fertility, low content of organic substance(<1%), lean to acidity(pH 4.5 to 5.5), and soil leanness.

Powder sandiness soil: good aerate capability, generic ability of keep moisture and fertility, lean to low content of organic substance(1.0%-1.5%), lean to acidity(pH 4.5 to 5.5), ecumenical fecundity.

Clay loam: generic aerate capability, preferable ability of keep moisture and fertility, middling content of organic substance(1.5%-2.5%), soil acidity(pH 4.0 to 5.5), and rich soil.