岗地白浆土低产的原因主要是黑土层薄,白浆层养分贫瘠,通透性能差,因此作物产量一直很低,几年的试验说明,多年生豆科牧草沙打旺和苜蓿对改良白浆土的理化性质有重要作用,龙其沙打旺作用明显,三年后可使紧实的白浆层土壤容重降低0.23克/厘米~3,增加有机质0.84％,全N0.064％,全P0.032％,速效氮6.003毫克/100克土. The reason for the low yield of white soil is that the black soil layer is thin and the nutrients in the white soil layer are poor and the permeability is poor. Therefore, the crop yield has been very low. Several years’ experiment shows that perennial leguminous pasture, Astragalus adsurgens and alfalfa, The physical and chemical properties of soil play an important role. The effect of playing a role in the growth of sand is obvious. After three years, the soil bulk density of compacted white soil layer can be reduced by 0.23 g / cm ~ 3, organic matter increased by 0.84%, N0.064% .032%, available nitrogen 6.003 mg / 100 grams of soil.