Method for preparing saline-alkali soil conditioning agent by utilizing fermentation residues

A technology for improving and fermenting residues of saline-alkali soil, which can be applied in chemical instruments and methods, fertilizers made from biological waste, and applications, and can solve the problems of poor physical properties and poor water permeability of saline-alkali soils.

Inactive Publication Date: 2018-04-10
WEIFANG YOURONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The physical properties of saline-alkali soil are poor, mainly because it contains a large amount of soluble salts (sodium carbonate). Sodium carbonate makes the soil particles highly dispersed, muddy when wet, hardened when dry, and poor water permeability

Method used

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Embodiment Construction

[0015] Below in conjunction with embodiment, further set forth the present invention. In the following detailed description, certain exemplary embodiments of the invention are described by way of illustration only. Needless to say, those skilled in the art would realize that the described embodiments can be modified in various different ways, all without departing from the spirit and scope of the present invention. Accordingly, the description is illustrative in nature and not intended to limit the scope of the claims.

[0016] A kind of method utilizing fermentation residue to make saline-alkaline soil improver, comprises the following steps:

[0017] Step 1, the fermentation residue is first subjected to water control treatment, and then air-dried, and the air-dried fermentation residue is crushed; when the fermentation residue is subjected to water control treatment, extrusion is used to control water to ensure that the fermentation residue after water control contains Th...

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Abstract

The invention discloses a method for preparing a saline-alkali soil conditioning agent by utilizing fermentation residues. The method comprises the following steps that 1, fermentation residues are firstly subjected to water control treatment and then are subjected to air-drying treatment, and the air-dried fermentation residues are smashed; 2, the fermentation residues are uniformly mixed with decomposed coal according to the weight ratio of 4 to 3 to obtain the saline-alkali soil conditioning agent. The saline-alkali soil conditioning agent using the fermentation residues as a main raw material can obviously reduce the pH value of saline-alkali soil. The cause reducing the pH value of saline-alkali soil by the saline-alkali soil conditioning agent is associated with the fact that the saline-alkali soil conditioning agent contains rich organic matter, humic acid and calcium. The organic matter is decomposed to produce organic acid, and soil alkalinity is neutralized. The humic acid can provide a certain number of hydrogen ions, and calcium ions are exchanged with sodium ions adsorbed by the soil to eliminate soda, reduce soil pH, improve alkali-affected soil and prevent soil alkalization.

Description

technical field [0001] The invention relates to the technical field of saline-alkali soil improvement, in particular to a method for preparing a saline-alkali soil improver by using fermentation residue, which can improve the soil condition of the saline-alkali land so that it is suitable for the growth of crops. Background technique [0002] There are a large number of saline-alkali lands in our country. The yield of crops planted on these lands is very low, or even extinct. If no crops are planted on the saline-alkali land and left unattended, the saline-alkali land will slowly erode to the good land, and the area of ​​the saline-alkali land will become larger and larger, so Harnessing and improving saline-alkali land is a national plan and an urgent matter. [0003] The quality of soil physical conditions is closely related to microaggregates. Soil microaggregates are the particle units that constitute the soil structure, and largely influence the quality characteristics...

Claims

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Application Information

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IPC IPC(8): C09K17/40C05G3/04C09K101/00C09K109/00C05G3/80
CPCC05F5/008C05G3/80C09K17/40C09K2101/00C09K2109/00C05F11/02
Inventor 王胜
Owner WEIFANG YOURONG IND
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