Effects of Soil Conditioners on Physical and Chemical Properties of Understory Soil in the Northern Foot of Qinling Mountains

In view of the common phenomenon of heavy adhesion in the soil under the forest in the northern foot of Qinling Mountains, in order to make more efficient use of the soil under the forest, the random block method was used to set up the experimental field, and EM bacteria and vermiculite were selected as soil conditioners. Two concentration gradients were set up for each conditioner to study the effect of composite soil conditioner on the soil under the forest in the northern foot of Qinling Mountains. The study found that the application of different proportions of soil conditioners has significantly improved and improved the physical and chemical properties of the soil. A good soil structure is more conducive to the growth of bupleurum, in order to provide a theoretical basis for the sustainable management and protection of forest land in Qinling Mountains, ecological restoration, and the correct and rational use of forest space.