In view of our country northeast half arid area slope farming's plow layer thins year by year.The structure hard and the close plough pan uppers and thickens.Causing the soil water percolation

the ventilation to miss extremely

the soil runoff and the silt corrosion are serious.Moisture content infiltration Influenced seriously.Has using the concentric ring pressed in infiltrates experimental and the open country simulation rainfall experiment.Having studied slope farming in the tied ridging culture

between breaks the plow sole scope according to the pitting difference field earth.The plough pan of slope farming to the moisture content infiltration influencing has analyzed.The result indicated that the plow sole broke partially.The moisture content stable infiltration rate enhances

producing the class time expands

the runoff and the silt reduce obviously.