Saline alkali land nutritional improvement agent

Abstract

The invention relates to the technical field of improvement agents, in particular to a saline alkali land nutritional improvement agent. The preparation method of the saline alkali land nutritional improvement agent includes: preparation of an amino acid solution; preparation of an organic additive; and preparation of high sulfur coal gangue compound bacterial powder. Specifically, bird feather isprepared into a suspension liquid, then hydrolysis reaction is carried out, and filtration is conducted to obtain an amino acid solution; a variety of strains are inoculated to a medium for culture to maturity in an incubator to obtain a mixed bacterial solution; crushed, sieved and ultrasound treated high sulfur coal gangue and the mixed bacterial solution are subjected to mixed fermentation toobtain a high sulfur coal gangue composite bacterial solution; then inoculating the composite bacterial solution into a solid fermentation substrate, and conducting fermentation, drying and crushing to obtain high sulfur coal gangue composite bacterial powder; and then mixing the amino acid solution, the organic additive and the high sulfur coal gangue composite bacterial powder in certain proportion and stirring the substances evenly to obtain the saline alkali land nutritional improvement agent. After application, the saline alkali land nutritional improvement agent can greatly improve the soil condition and crop growth indexes, and increase the crop yield.

Description

technical field [0001] The invention relates to the technical field of improvers, in particular to a nutritional improver for saline-alkali land. Background technique [0002] my country has a large area of ​​saline-alkali soil with complex types. The total area of ​​various types of saline-alkali soil in the country reaches 1,487 million mu. Due to the accumulation of a large amount of salt in the soil, a series of soil physical properties deteriorate: sticky structure, poor air permeability, high bulk density, slow rise in soil temperature, poor activity of aerobic microorganisms in the soil, slow differential release, low permeability coefficient, capillary action Strong, it also leads to the aggravation of surface soil salinization. [0003] With the continuous development of coastal beaches, many difficulties have been encountered in the improvement and utilization of saline-alkali land. In order to make full use of coastal tidal land, people have adopted various meth...

AI Technical Summary

Problems solved by technology

However, due to the compaction and barrenness of the saline-alkali soil, low fertility and high soil pH, it is not conducive to plant growth

[0004] Soil improver plays an important role in the improvement of saline-alkali land, and microbial bacterial agent is also a development direction, but the existing soil improver has the following defects: (1) the microorganisms in the improver are easily inactivated during transportation and storage and cannot (2) The ability to improve saline-alkali land is limited, and the soil pH and alkalization degree cannot be reduced at the same time; (3) The ability to increase the organic matter content in the soil is insufficient; (4) The improvement effect on soil water-holding pores is not good; (5) ) The number of microorganisms in the improved soil is less

[0005] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

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