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A kind of saline-alkali soil salinity conditioner and preparation method thereof

A saline-alkali soil and conditioner technology, applied in soil conditioning materials, chemical instruments and methods, and other chemical processes, can solve the problems of low germination rate of crops, large amount of gypsum, and difficult washing, etc., to prevent soil crusting , increase the penetration capacity, reduce the effect of salinization

Active Publication Date: 2020-11-27
INNER MONGOLIA M GRASS ECOLOGY & ENVIROMENT GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: 1) the amount of gypsum is large, and the gypsum contains more chloride ions, heavy metal ions, etc., which are unfavorable to crop growth.
2) The treatment effect of phosphogypsum is not obvious, and it generally takes two or three years to plant crops, and after applying phosphogypsum treatment on mild saline-alkali land, the germination rate of crops is still low and the later growth is not good
3) There are a lot of insoluble calcium salts in excessive phosphogypsum, which is not conducive to crop absorption, and it is easy to cause soil compaction, which is not easy to wash away, and the phenomenon of burning roots and seedlings in the later stage is not conducive to crop growth, etc.

Method used

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  • A kind of saline-alkali soil salinity conditioner and preparation method thereof

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Effect test

Embodiment 1

[0022] A saline-alkali soil salinity conditioner of the present invention comprises the following components in parts by weight: 50 parts of calcium salt, 5 parts of sorbitol solution, 22 parts of urea phosphate, and 25 parts of water.

[0023] The preparation method of the saline-alkali soil salinity conditioner of the above-mentioned present embodiment comprises the following steps:

[0024] Rinse the reaction kettle with purified water, pump some purified water into the reaction kettle, raise the temperature to 70°C, put 50 parts of calcium nitrate into the reaction kettle, heat properly to maintain the feeding temperature at about 50°C, so that the solid can be fully Dissolve; heat up to 65-70°C after feeding the calcium salt, mix and stir, and the solid is fully dissolved; pump 5 parts of sorbitol liquid into the reaction kettle, continue to keep warm to 65-70°C, keep warm for 2 hours, add hot After fully dissolving 22 parts of urea phosphate in water, continue to keep wa...

Embodiment 2

[0026] Rinse the reaction kettle with purified water, pump some purified water into the reaction kettle, raise the temperature to 70°C, put 50 parts of calcium nitrate into the reaction kettle, heat properly to maintain the feeding temperature at about 50°C, so that the solid can be fully Dissolve; heat up to 65-70°C after feeding the calcium salt, mix and stir, and the solid is fully dissolved; pump 5 parts of sorbitol liquid into the reaction kettle, continue to keep warm to 65-70°C, keep warm for 2 hours, add hot After fully dissolving 20 parts of urea phosphate in water, continue to keep warm at 70-75°C, mix and stir for 7 hours, turn off the heating, continue to stir, and naturally cool down to room temperature to obtain a clear liquid, which is the saline-alkali soil salt of this embodiment. Conditioning agent.

Embodiment 3

[0028] Rinse the reaction kettle with purified water, pump some purified water into the reaction kettle, raise the temperature to 70°C, put 50 parts of calcium nitrate into the reaction kettle, heat properly to maintain the feeding temperature at about 50°C, so that the solid can be fully Dissolve; heat up to 65-70°C after feeding the calcium salt, mix and stir, and the solid is fully dissolved; pump 5 parts of sorbitol liquid into the reaction kettle, continue to keep warm to 65-70°C, keep warm for 2 hours, add hot After fully dissolving 23 parts of urea phosphate in water, continue to keep warm at 70-75°C, mix and stir for 7 hours, turn off the heating, continue to stir, and naturally cool down to room temperature to obtain a clear liquid, which is the saline-alkali soil salt of this embodiment. Conditioning agent.

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Abstract

The invention discloses a saline alkali soil salinity conditioner and a preparation method thereof. The saline alkali soil salinity conditioner contains the following components in parts by weight: 50-60 parts of calcium salt, 5-10 parts of a sorbitol solution, 20-25 parts of urea phosphate and 5-25 parts of water. The preparation method comprises the following steps: injecting purified water intoa reaction kettle, heating to 65-75 DEG C, adding the calcium salt, and mixing and stirring until the calcium salt is dissolved; holding the temperature at 65-75 DEG C, injecting the sorbitol solution into the reaction kettle, and then holding the temperature for 1-2 hours, adding urea phosphate and phosphorous acid which are dissolved with hot water, mixing and stirring for 5-7 hours, stopping heating, further stirring, and naturally cooling to the room temperature, so as to obtain the saline alkali soil salinity conditioner. The saline alkali soil salinity conditioner has the advantages ofenvironmental friendliness and low use amount, the improvement speed of the salinity of the saline alkali soil is high, and the conditioner can be directly adsorbed and utilized.

Description

technical field [0001] The invention relates to the field of soil improvement, in particular to a saline-alkali soil salinity conditioner and a preparation method thereof. Background technique [0002] The physical and chemical properties of saline-alkali land are bad, with high salinity and high alkalinity, which causes the soil humus to be leached and the soil structure to be damaged. It is sticky when wet and hard when dry. There are often white salt deposits on the soil surface. Some will cause plant wilting, poisoning and root rot death, which is extremely poisonous to plants. Land salinization not only harms the soil conditions on which crops depend, but also affects the growth of crops, resulting in the lack of seedlings or death of crops, thus hindering the development of agricultural production. Soil salinization is an important limiting factor for the development of local agricultural economy. [0003] There are many improvement methods for saline-alkali land, inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C09K101/00C09K109/00
Inventor 马瑞强白寅祯张新平王敏何文祥钱良友
Owner INNER MONGOLIA M GRASS ECOLOGY & ENVIROMENT GRP CO LTD
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