Microbial culture capable of improving soil salinization and preparation method of microbial culture

Abstract

The invention discloses a microbial culture capable of improving soil salinization. The microbial culture is obtained by inoculating a fermentation substrate prepared from corn, soybean meal, wheat bran and molasses in proportion with fermentation mother liquor prepared from lactobacillus acidophilus, candida utilis and rhodopseudomonas palustris for anaerobic fermentation. The invention further discloses a preparation method of the microbial culture capable of improving soil salinization. The microbial culture has high flora activity, is suitable for breeding and releasing large quantities of organic acids and bacteriocin in saline soil and has the characteristics of good improvement effect and long effect duration. The strain conforms to national relevant regulations, is safe and environment-friendly and is a novel soil salinization improvement scheme which is free of poison, residues and resistance, easy to operate and low in investment.

Description

technical field [0001] The invention belongs to the technical field of biological treatment of salinized soil, in particular to a microbial culture for improving soil salinization and a preparation method thereof. Background technique [0002] With the continuous application of chemical fertilizers for more than 30 years in agricultural land in my country, coupled with the lack of crop rotation conditioning, excessive chemical fertilizers are deposited in the soil, forming strong compounds or polymers that cannot be absorbed by crop roots, and gradually form chemical salt crystals , resulting in soil compaction and increased salinization. [0003] In order to one-sidedly pursue production, growers blindly increase the application of chemical fertilizers, which makes the area of ​​salinized soil accumulate larger and larger, and has basically covered all the territory of China's cultivated land, especially in fruit trees, vegetables, rice, cotton and other planting areas. The...

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Problems solved by technology

[0004] 1. Water pressure spraying from deep underground wells not only causes a lot of waste of cost and endangers the safety of groundwater, but also is very easy to repeat, which can only treat the symptoms but not the root cause

[0005] 2. Relying on organic matter improvement, the effect is poor

Large investment, poor effect

In compacted and salinized land, the soil texture is dense, the combination is firm, and the oxygen absorption capacity is weak, which cannot satisfy the rapid reproduction of aerobic microorganisms

At the same time, it creates an unfavorable situation where aerobic microorganisms compete with crop roots for oxygen, resulting in both the growth of crop roots and the reproduction of aerobic microorganisms being hindered, which can neither effectively improve the soil, but also cause crop growth inhibition

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