Method special for restoring hardened soil

Abstract

The invention discloses a method special for restoring hardened soil and belongs to the technical field of soil environment restoration. The method includes: using a ploughing machine and a rotary tiller for ploughing and rotary tilling of hardened soil, and applying bio-fertilizer capable of improving soil hardening and increasing looseness and porosity into the soil after rotary tilling, whereinthe bio-fertilizer is composed of basic fertilizer and target microbial flora including garden dry branch and fallen leaf decomposed fertilizer and microorganisms like Jingyang streptomycetes, photosynthetic bacteria, aspergillus oryzae, bacillus subtilis, bacillus licheniformis and bacillus megaterium, and each gram of the bio-fertilizer contains about 0.52-1.8 billion of the above bacteria. Themethod is simple and easy to implement, convenient for operation, low in restoring cost, capable of obviously improving soil hardening symptoms, substantially enhancing buffering ability of the soil,improving breathability and water permeability of the soil, promoting water and moisture retaining of the soil and enhancing drought resistance, cold resistance and flooding resistance of plants; living microorganisms in the bio-fertilizer can strengthen leaf protection films, resist pathogenic bacteria infection and improve disease resistance and insect resistance of the plants, so that the method is obvious in restoring effect and lasting in time effect.

Description

technical field [0001] The invention relates to a restoration method of compacted soil, belonging to the technical field of soil environment restoration. Background technique [0002] Soil is a reusable agricultural resource. At present, due to the maximum use of chemical fertilizers and pesticides by people, at the same time, it has brought low utilization rate of chemical fertilizers, accumulation of soil salt, soil compaction, soil fertility decline, etc., especially the drastic reduction of microorganisms in the soil, and the soil is constantly deteriorating In turn, it restricts the development of agriculture. In particular, the problem of soil compaction is a major problem faced by agriculture in various countries. Soil compaction is usually manifested as a lack of organic matter, poor structure, and poor aggregate structure. The structure is easily destroyed when watering, and the soil particles are scattered, and the soil becomes hard after drying. , Compaction wil...

AI Technical Summary

Problems solved by technology

At present, due to the maximum use of chemical fertilizers and pesticides by people, at the same time, it has brought low utilization rate of chemical fertilizers, accumulation of soil salt, soil compaction, soil fertility decline, etc., especially the drastic reduction of microorganisms in the soil, and the soil is constantly deteriorating , which in turn restricts the great development of agriculture

In particular, the problem of soil compaction is a major problem faced by agriculture in various countries. Soil compaction is usually manifested as a lack of organic matter, poor structure, and poor aggregate structure. The structure is easily destroyed when watering, and the soil particles are scattered, and the soil becomes hard after drying. , hardening will result in barren soil, poor ventilation and water permeability, and difficulty in nutrient absorption, which will seriously affect the growth of plants

[0003] At present, the main measures to improve soil compaction are to reduce the use of chemical fertilizers, increase the application of organic fertilizers, and increase the use of soil conditioners, but the cost is often too high. For soils that have been severely compacted, the effect is not significant, and the crops cannot be guaranteed. high yield