Method for soil improvement and remediation by using quaternary method

Abstract

The invention belongs to the technical field of agriculture, and particularly relates to a method for soil improvement and remediation by using a 'quaternary' method, a compound microbial agent used in the method, and application of the compound microbial agent in soil improvement and remediation. The 'quaternary' soil improvement and remediation method starts from organic matter improvement, mineral substance improvement, biodegradation and disease resistance and growth promotion, and comprehensive improvement and remediation are carried out on soil in four aspects of soil physical structure, chemical nutrients, biological activity and soil-borne diseases through deep soil improvement and shallow soil remediation. The activity of soil carbon-nitrogen cycle related enzymes can be remarkably improved, the soil microbial population structure is optimized, the soil microbial function is improved, plant residues in soil are driven to be fermented through the interaction of disease-resistant probiotic microorganisms, beneficial microorganisms become main force of soil activity, the soil structure is improved, land is fully utilized, and the method is of great significance in sustainable development of agriculture, improvement of the income level of farmers, improvement of life of people, protection of ecological environment and the like.

Description

technical field [0001] The invention belongs to the field of agricultural technology, and in particular relates to a method for soil improvement and repair using the "quaternary" method, a soil improver used in the method, a disease-resistant probiotic compound microbial agent, and the soil improver or Application of disease-resistant and probiotic compound microbial agents in soil improvement and restoration. Background technique [0002] The existing soil improvement methods are relatively simple, often only improving one target, without forming a unified technical system; the traditional planting mode still relies on a large amount of quick-acting fertilizers such as compound fertilizers and nitrogen, phosphorus and potassium fertilizers, which are applied to the soil every year Only a small part of the fertilizer is absorbed and utilized by crops, and the rest of the fertilizer is either leached with rainwater or fixed by soil aggregates. If things go on like this, soil ...

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Problems solved by technology

[0002] The existing soil improvement methods are relatively simple, often only improving one target, without forming a unified technical system; the traditional planting mode still relies on a large amount of quick-acting fertilizers such as compound fertilizers and nitrogen, phosphorus and potassium fertilizers, which are applied to the soil every year Only a small part of the fertilizer is absorbed and utilized by crops, and the rest of the fertilizer is either leached with rainwater or fixed by soil aggregates. If things go on like this, soil continuous cropping problems, heavy cropping problems, hardening problems, and salinization problems will all appear, seriously changing The physical and chemical properties of the soil are severely degraded, and the growth of crops is inhibited to varying degrees, resulting in a decline in the resistance of the crops themselves, making it difficult to resist the invasion of diseases and insect pests, resulting in reduced crop yields and reduced economic benefits for growers.

[0003] According to statistics, more than 80% of the soil in our country is not short of nutrients, and the measured values ​​of soil nutrients are all on the high side. However, the nutrients in the soil are often difficult to be absorbed and utilized by crops. As the temperature rises, nutrients are absorbed by soil aggregates, causing a vicious cycle in saline-alkali land and destroying the ecosystem

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