It sampl the 0~100 cm section of windblown soil and new silt land and silted tilth in the flood irrigation area of Gongwusu

and mensurated the soil nutrient content and grain size constitute

in order to analyze distribution characteristic of nutrient and grain size of the soil after silting up using the flood with high sand.As a result

available P content in the new silt land is 4.2 times than the original shape wind-blown soil

the same available K is 2.5 times

alkali-hydrolysable N is 2.4 times

whole N is 2.7 times

whole P is 1.3 times

organic matter is 3.3 times

and available K content comes to very high grade in the whole country soil census for the second time nutrient standard

available P comes to abundant grade.Through Leading the flood with high sand into the basin of the desert for silting up many times

when alluvium thickness exceed plow

the desert can becomes the high quantity farmland.It is a very valid approach to use the flood with high sand controlling sand and silting land for reducing the yellow river bed silted and controlling desert and developing farmland.