通过小型小区田间模拟试验,研究混层改土对白浆土物理性质和作物产量的影响。试验结果表明,将白浆层与淀积层混拌,促使白浆层和淀积层硬度相应减少7.68和5.96公斤/平方厘米,容重降低0.25和0.11克/立方厘米,孔隙度增加5～8%,贮水量提高20.6毫米/10厘米土层,三年平均作物增产15.7%,改土效果持续5年以上。指出了进一步研究的问题。 Through field trials in small plots, the effects of mixed soil improvement on the physical properties and crop yield of albic soil were studied. The results show that mixing the white layer with the deposited layer can reduce the hardness of the white layer and the deposited layer by 7.68 and 5.96 kg / cm respectively, decrease the bulk density by 0.25 and 0.11 g / cm 3, and increase the porosity by 5-8 %, Water storage increased 20.6 mm / 10 cm soil layer, three-year average crop yield 15.7%, soil improvement effect lasts more than 5 years. Pointed out the problem of further research.