我省砂质黄潮土主要分布于开封、新乡、安阳、商丘、周口等地区,面积约为1500万亩。包括黄砂土、细砂土、粉砂土、明砂土及青砂土。成土母质为黄河历次泛滥的沉积物。这些地区,地势平坦,土层深厚,质地疏松,耕作方便。但由于燃料奇缺,作物秸秆不能还田,有机质累积甚微,加之氮、 Yellow sandy loam in our province are mainly distributed in Kaifeng, Xinxiang, Anyang, Shangqiu, Zhoukou and other areas, an area of ​​about 15 million mu. Including yellow sand, fine sand, silt, sand and sand sandy soil. Soil parent material for the previous flooding of the Yellow River sediments. In these areas, the terrain is flat, with deep soil, loose soil and convenient farming. However, due to lack of fuel, crop stalks can not be returned to the field, organic matter accumulation is very small, combined with nitrogen,