在盆栽试验条件下,以典型岗地白浆土土层结构为基础,通过改变黑土层的厚度研究了心土层对大豆产量的贡献;并通过混施磷肥和钙肥,研究了心土培肥的效果。结果表明:随着黑土厚度的增加,大豆株高和产量显著增加,白浆土心土对大豆产量的贡献很低,仅为4.7%;各心土培肥处理比心土混层增产9.7%～18.1%,比白浆土原状土壤增产16.0%～34.1%,土壤施磷后增加了Ca2-P、Ca8-P和Al-P的含量。因此,白浆土心混施钙磷肥对大豆有显著的增产效果。 Under the pot experiment conditions, the contribution of the soil layer to the soybean yield was studied by changing the thickness of the black soil layer on the basis of the structure of typical gypsum soil layer. Through the application of phosphate fertilizer and calcium fertilizer, Effect. The results showed that with the increase of the thickness of black soil, the plant height and yield of soybean increased significantly, while the content of white soil soil and core soil contributed very little to soybean yield, only 4.7% ~ 18.1%, which increased 16.0% -34.1% compared with the original soil of white clay soil. The contents of Ca2-P, Ca8-P and Al-P increased after soil phosphorus application. Therefore, white soil mixed heart of calcium and phosphorus fertilizer on soybean yield significantly increased.