This text the combination is small and on trial to discuss the soil of versa hillside fileds steps with big area expansion in the guizhou important position within water and soil conservation of northwest mountain area is with the function:Fix to set up the soil of versa hillside fileds steps on the dry sloping fields, and is a great water and soil conservation measure ofeffect of a fee province, and can is last the dry sloping fields of flush the water to become the underground to permeate the water, and insure the manure water manure in the steps soil the soil to not is flushed to run off," three run the soil the " become" three keep soil", from but increase the food yield.