Method for improving soil and increasing fertilizer through synergy of covering grass and inoculation

Abstract

The invention discloses a method for improving soil and increasing a fertilizer through synergy of covering grass and inoculation. The method comprises the following steps: (1) inoculating, namely, scattering arbuscular mycorrhizal fungi around nursery stock trunks in a sand land, and covering with soil; (2) confirming a grass covering range, namely, taking the projection range of the crowns of the inoculated nursery stock in the sand land on the ground under vertical sunshine as the grass covering range; (3) covering with grass, namely, removing soil of 1-2 cm on the surface within the grass covering range to expose new soil, laying alfalfa with the thickness of 10-12 cm on the surface of the new soil, and covering the laid alfalfa with soil of 1-2 cm. By adopting the method, the speed in improving soil and increasing the fertilizer in soil in the sand land can be greatly increased, and the method is a rapid and scientific method for improving soil and increasing the fertilizer in large-scale used soil for digging ecological reconstruction and soil remediation, and is an important soil remediation method for rapidly improving soil and increasing the fertilizer in the soil of barren sand land.

Description

Technical field [0001] The invention belongs to the field of sand ecology and relates to a method for improving soil and fertilizing by utilizing the synergistic effect of grass covering and inoculation. Background technique [0002] Arbuscular mycorrhizal fungus is a kind of soil microorganism (AM for short) that is ubiquitous in nature. More than 90% of the flowering plants on the land can form a mycorrhizal symbiosis with it, and mycorrhiza has obvious ecological effects on ecological restoration in coal mining areas. Covering with alfalfa can increase the absolute water content of the soil, and play a role in resisting drought and moisture; preventing the ground temperature from being too high due to the hot sun, which affects the growth of roots. The mulching of grass at the end of autumn can protect the ground temperature and enhance the absorption capacity of the roots; prevent direct contact and erosion by heavy rains and the ground , Especially for sandy soil, water and...

AI Technical Summary

Problems solved by technology

What these methods have in common is that they can improve soil and fertilize quickly, but at the same time, fertilizers are expensive, consume a lot of manpower and material resources, and have high costs

Therefore, the application of chemical fertilizers and organic fertilizers is becoming more and more widely used in ecological reconstruction and soil restoration in mining areas, and it is difficult to achieve the effect of rapid soil improvement and fertilization.