Preparation and application of composite bioactive material taking attapulgite to load bacillus

Abstract

The invention relates to a method for preparing a composite material which takes modified or unmodified attapulgite as a carrier to immobilize bacillus, belonging to the technical fields of microbial fertilizers, biological control of plant diseases, soil remediation and pollution abatement. A microorganism-mineral immobilization technology is realized by means of preparing a proper amount of attapulgite with a proper amount of bacillus viable bacteria preparation according to a certain technology. The composite material prepared according to the method disclosed by the invention has the advantages that the plant growth can be promoted, the soil-borne diseases, such as root rot, blight, soft rot and the like, of various crops can be inhibited, and the effect of preventing threadworm from spawning is achieved; the composite material further has the capabilities of keeping the local moisture of plant root systems, and enhancing the plant resistance to drought, saline and alkaline as well as oxidization; moreover, the composite material can be further used for purifying organic pollutants in water, absorbing soil heavy metals and relieving soil hardening, so that the effects of soil moisture conservation and fertilizer conservation are achieved. The composite material prepared according to the method disclosed by the invention is an environment-friendly composite material, which has the advantages that environment harm and pollution can be prevented through correct use of the composite material, and a wide application prospect is obtained.

Description

[0001] FIELD OF THE INVENTION The present invention is in the field of microorganisms. It mainly relates to the preparation and application of mineral composite materials of attapulgite immobilized Bacillus. Background technique [0002] With people's emphasis on the ecological environment and the increasing demand for green, safe, organic and pollution-free food, environmentally friendly pesticides and fertilizers have increasingly become research hotspots in the development of agricultural production. For more than half a century, although chemical pesticides have played an important role in agricultural production, the long-term irrational use of chemical pesticides has caused many problems. For example, the high toxicity and high residue of chemical pesticides not only cause harm to human and animal health , and cause serious pollution to soil, water, and atmosphere, destroying the ecological balance. At the same time, due to the increasing resistance of germs and pests, ...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a method that can not only promote plant growth, prevent and control soil-borne diseases, but also alleviate soil pollution, in order to overcome the harmful residues of chemical pesticides and chemical fertilizers in farmland, and the low effectiveness of single materials as fertilizers or soil sewage improvers. A new type of environmentally friendly microbial-mineral composite material that compacts, enhances the organic content of the soil, improves soil moisture and fertilizer retention, degrades heavy metals and harmful substance residues in the soil, and improves the quality of agricultural products.

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