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Acid-reducing microbial soil conditioner as well as preparation method and application thereof

A soil improver and microbial technology, applied in the field of acid-reducing microbial soil improver and its preparation, can solve the problems of reducing ammonifying bacteria and nitrogen-fixing bacteria, affecting the virtuous cycle of nutrient elements, and reducing the growth of individual bacteria, so as to prevent soil Effects of secondary acidification, realization of resource utilization, improvement of soil acidity

Active Publication Date: 2021-10-15
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, it will also lead to changes in the population of beneficial microorganisms in the soil, the individual growth of bacteria will become smaller, and the growth and reproduction speed will decrease. A virtuous cycle of nutrients, resulting in reduced agricultural production
In particular, reducing the number of ammonifying bacteria and nitrogen-fixing bacteria in the soil will reduce the ability of ammonification and nitrification of soil microorganisms, which is very detrimental to crops

Method used

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  • Acid-reducing microbial soil conditioner as well as preparation method and application thereof
  • Acid-reducing microbial soil conditioner as well as preparation method and application thereof

Examples

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no. 1 example

[0040] A preparation method of an acid-reducing microbial soil improver, comprising the steps of:

[0041] (1) Preparation of modified calcium carbide slag: first dry the carbide slag at 105°C for 1 hour, then place it in a horse-boiling furnace for calcination at 300°C for 2 hours, cool to room temperature after completion, and grind it in a grinder for 5 minutes to obtain modified carbide slag powder.

[0042] (2) Acid-reducing microparticles: Mix 0.5 parts by weight of hydrogen peroxide and 5 parts by weight of water evenly, then add 5 parts by weight of tricalcium silicate and 50 parts by weight of the modified carbide slag prepared in step (1), and stir them evenly at 20°C and relative humidity of 60% for curing for 10 hours. After completion, the porous particles with a diameter of less than 3 mm are obtained by crushing. After mixing 50 parts by weight of modified calcium carbide slag and 5 parts by weight of water, they are mixed with the porous particles to make the m...

no. 2 example

[0046] A preparation method of an acid-reducing microbial soil improver, comprising the steps of:

[0047] (1) Preparation of modified calcium carbide slag: first dry carbide slag at 100°C for 3 hours, then place it in a horse-boiling furnace for calcination at 550°C for 0.5 hour, cool to room temperature after completion, and place it in a grinder for grinding for 10 hours. minutes to obtain modified carbide slag powder.

[0048] (2) Acid-reducing microparticles: Mix 5 parts by weight of hydrogen peroxide and 10 parts by weight of water evenly, then add 15 parts by weight of tricalcium silicate and 65 parts by weight of modified carbide slag prepared in step (1) and relative humidity of 40% for curing for 18 hours, and then broken to obtain porous particles with a diameter of less than 3 mm. Mix 65 parts by weight of modified calcium carbide slag and 10 parts by weight of water with the porous particles to make the modified calcium carbide The slag fills the pores of the por...

no. 3 example

[0052] A preparation method of an acid-reducing microbial soil improver, comprising the steps of:

[0053] (1) Preparation of modified calcium carbide slag: first dry the carbide slag at 120°C for 1 hour, then place it in a horse-boiling furnace for calcination at 450°C for 1.5 hours, cool to room temperature after completion, and place it in a grinder for grinding for 10 minutes to obtain modified carbide slag powder.

[0054] (2) Acid-reducing microparticles: Mix 4.5 parts by weight of hydrogen peroxide and 7 parts by weight of water evenly, then add 7 parts by weight of tricalcium silicate and 57 parts by weight of the modified carbide slag prepared in step (1), and stir them uniformly at 28°C and relative humidity of 55% for curing for 15 hours. After completion, the porous particles with a diameter of less than 3 mm were obtained by crushing. After mixing 59 parts by weight of modified calcium carbide slag and 8 parts by weight of water, they were mixed with the porous pa...

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Abstract

The invention discloses an acid-reducing microbial soil conditioner as well as a preparation method and application thereof. The soil conditioner comprises a shell and an inner core coated in the shell, and the shell comprises the following raw materials: tricalcium silicate, modified carbide slag and water; the inner core is prepared from the following raw materials: a network-shaped matrix, leuconostoc mesenteroides, epoxypropane, soil microbial powder, deacidification microspheres and water. The soil conditioner is of a core-shell structure and is characterized in that the modified carbide slag in the shell contains a large amount of calcium oxide, OH<-> can be continuously released under the dissolution action of irrigation water, and the soil acidity is rapidly reduced. The main component of the inner core is the deacidification microsphere containing microorganisms, and the deacidification microsphere has a foaming porous structure, so that the release rate of an alkaline component (OH<->) can be regulated and controlled, and the secondary acidification of the soil is effectively prevented. In addition, the network-shaped matrix in the inner core can provide an ecological network system for microorganisms to survive for a long time, and microorganism bacteria and nutrients can be continuously released to soil.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to an acid-reducing microbial soil improver and its preparation method and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Soil acidification changes the soil micro-ecological environment, harmful microorganisms multiply under acidic conditions, and the root system of plants is weak, so it is easy to be eroded by pathogens in this acidified soil. At the same time, it will also lead to changes in the population of beneficial microorganisms in the soil, the individual growth of bacteria will become smaller, and the growth and reproduction speed will decrease. ...

Claims

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Application Information

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IPC IPC(8): C09K17/40C09K101/00C09K109/00
CPCC09K17/40C09K2101/00C09K2109/00
Inventor 宫晨琛戴靖高新王艳飞霍柳青芦令超
Owner UNIV OF JINAN
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