Powdery biological soil improver

Abstract

The invention discloses a powdery biological soil improver and application thereof. The invention relates to preparation of a powdery biological soil improver by using phytase, glucose oxidase, bacillus subtilis powder, bacillus licheniformis powder, green trichopyces powder and candida alba yeast powder, and application of the powdery biological soil improver in biological repairing of soil. Whenthe powdery biological soil improver is adopted to repair soil, soil structures can be improved, the soil fertility is greatly improved, heavy metal ions in the soil are complexed, and pesticide residues in the soil are decomposed.

Description

technical field [0001] The invention relates to a powdery biological soil improver and its application, and a method for bioremediating soil by using the powdery biological soil improver, in particular to the field of biological soil improver processing. Background technique [0002] In recent years, with the development of my country's industrialization and urbanization, land pollution has become increasingly serious. According to incomplete statistics, nearly one-fifth of my country's arable land has been polluted to varying degrees. Polluted soil has led to a reduction in crop production, and may even cause pollution in agricultural products. Exceeding the standard, and then endangering human health, it is necessary to properly manage and repair. Soil remediation refers to the use of physical, chemical and biological methods to transfer, absorb, degrade and transform pollutants in the soil, reducing its concentration to an acceptable level, or converting toxic and harmful ...

AI Technical Summary

Problems solved by technology

Many natural minerals currently studied, such as zeolite, bentonite, etc., are used as soil improvers. Although the problem of ion exchange and adsorption is used to solve the problem of pH in the soil, it brings more ion salts at the same time, and the amount of application , application method and application time are difficult to be effectively controlled

There are also inorganic solid wastes used as soil improvers, such as fly ash, etc. Although the porosity of the soil is increased, it will inevitably increase the pH value of the soil, and reduce the migration capacity of heavy metals Cd, Pd, Co, etc. absorption of heavy metals

There are also natural high molecular compounds, such as polysaccharide high molecular polymers such as cellulose and chitin. Although the nitrogen element in the soil is increased, improper application rate and poor soil self-digestion ability will also cause plant nodules and stem growth. weight loss

There is also peat for improvement, but excessive use of peat will directly affect soil permeability. During the decomposition process of humic acid in peat, the organic acids and toxins formed will inhibit the growth of plant roots.

Images