Microbial soil remediation agent for saline-alkali land
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A technology of soil remediation agent and microorganism, which is applied in the direction of soil conditioning materials, fertilizer mixtures, organic fertilizers, etc., and can solve the problems of complex production process, single component, and high cost of liquid soil amendments
Inactive Publication Date: 2018-06-22
SHANDONG SHENGJING TOURISM DEV CO LTD
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Problems solved by technology
Among them, the production process of the liquid soil conditioner is relatively complicated, the cost is high, the use is also relatively troublesome, and the aftereffect is short.
The composition of inorganic solid soil conditioner is relatively single, the effect is poor, an
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Embodiment 1
[0058] In the C step, the desulfurized gypsum composite bacteria powder, organic fertilizer and composite biological bacteria improver are mixed in a weight ratio of 55:35:15, stirred evenly, and piled up into a strip shape of 1m*1m*20m for natural fermentation; the temperature rises After reaching 63°C, open it, and after cooling down to normal temperature, crush, sieve, and granulate to obtain a saline-alkali land microbial soil restoration agent;
[0059] The restorative agent was tested for cotton planting in saline-alkali land, and the application effect was as follows: the emergence rate increased by 17%, the seed cotton income increased by 8%, the soil alkalinity decreased by 12%, the water-soluble salt decreased by 33.1%, and the pH value decreased by 1.31.
Embodiment 2
[0061] In the C step, the desulfurized gypsum composite bacteria powder, organic fertilizer and composite biological bacteria improver are mixed in a weight ratio of 50:30:20 and stirred evenly, and then piled up into 1m*1m*20m strips for natural fermentation; After reaching 65°C, open it, and after cooling down to normal temperature, crush, sieve, and granulate to obtain a saline-alkali land microbial soil restoration agent;
[0062] The restorative agent was tested for cotton planting in saline-alkali land, and the application effect was as follows: the emergence rate increased by 19%, the seed cotton income increased by 9%, the soil alkalinity decreased by 13%, the water-soluble salt decreased by 34.3%, and the pH value decreased by 0.89.
Embodiment 3
[0064] In the C step, the desulfurized gypsum composite bacteria powder, organic fertilizer and composite biological bacteria improver are mixed in a weight ratio of 60:15:25 and stirred evenly, and then piled up into 1m*1m*20m long strips for natural fermentation; the temperature rises After reaching 64°C, it was opened, and after cooling down to normal temperature, it was crushed, sieved, and granulated to obtain a saline-alkali land microbial soil restoration agent;
[0065] The restorative agent was tested for cotton planting in saline-alkali land, and the application effect was as follows: the emergence rate increased by 15%, the seed cotton income increased by 8.5%, the soil alkalinity decreased by 11%, the water-soluble salt decreased by 31.9%, and the pH value decreased by 1.01.
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Abstract
The invention relates to a microbial soil remediation agent for saline-alkali land, belonging to the technical field of remediation agents. A preparation method for the microbial soil remediation agent comprises the following steps: preparation of desulfurized gypsum composite bacterial powder; preparation of organic fertilizer; preparation of a composite biological bacterial ameliorant; uniform mixing of the above three substances according to a weight ratio of (45-60): (15-40): (15-25); and fermentation and drying so as to obtain the microbial soil remediation agent. According to the invention, mediums are respectively inoculated with a plurality of bacterial strains, and the bacterial strains are cultured in an incubator until the bacterial strains are mature; then a nutrient solution is inoculated with the bacterial strains, and shake cultivation is carried out; then secondary fermentation is carried out in a fermentation tank; the bacterial strains eventually obtained after fermentation undergo adsorption by a carrier so as to obtain a mixed microbial agent; then desulfurized gypsum powder is added, fermentation is carried out, and adsorption via a solid substrate is carried out so as to obtain the desulfurized gypsum composite bacterial powder; the organic fertilizer and the composite biological bacterial ameliorant are added, and uniform mixing under stirring is carriedout; natural fermentation and drying are successively carried out to obtain the microbial soil remediation agent for saline-alkali land; and after application of the microbial soil remediation agent,the growth indicators of soil and crops can be greatly improved and crop yield is increased.
Description
technical field [0001] The invention relates to the technical field of remediation agents, in particular to a microbial soil remediation agent for saline-alkali land. Background technique [0002] my country's saline-alkali soil has a large area and complex types. Due to the accumulation of a large amount of salt in the soil, a series of soil physical properties have deteriorated: sticky structure, poor ventilation, high bulk density, slow rise in soil temperature, and poor activity of aerobic microorganisms in the soil. The release is slow, the permeability coefficient is low, and the capillary action is strong, which leads to the aggravation of surface soil salinization. [0003] At present, one of the chemical methods used to control saline-alkali land is to apply amendments to the soil. There are many kinds of existing soil conditioners, which are mainly divided into two categories: solid and liquid. Wherein the production process of the liquid soil conditioner is relat...
Claims
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