Modifier containing phosphogypsum and slow-release binder and used for secondary salinization of land and application method

A slow-release binder and phosphogypsum technology, applied in chemical instruments and methods, applications, organic fertilizers, etc., can solve problems such as air, water system and soil pollution, and occupation of land resources, so as to curb the deterioration of the soil environment and restore the soil environment, to avoid the effect of volatilization

Inactive Publication Date: 2017-02-08
SHANDONG SUNWAY LANDSCAPE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The large stockpiling of phosphogypsum not only encroached on land resources, but also polluted the atmosphere, water system and soil due to wind erosion and rain erosion.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A secondary saline-alkali soil improvement agent containing phosphogypsum and a slow-release binder, in parts by mass, whose raw material formula is as follows:

[0024] 120 parts of phosphogypsum, 400 parts of citric acid residue, 160 parts of slow-release binder, 120 parts of lobster shell, 80 parts of cottonseed meal, 60 parts of phytase, 20 parts of fly ash, 1200 parts of sorghum distiller's grains, 14 parts of trace element fertilizer Wherein, the slow-release binder includes by mass parts: 4 parts of polyvinyl alcohol, 3 parts of gelatinized starch, 2 parts of phosphogypsum, 1 part of ammonium sulfate, 1 part of sodium chloride, fluorosilicic acid 0.7 parts of sodium, 2 parts of potassium chloride, and 0.4 parts of superabsorbent resin.

[0025] Wherein, the trace element fertilizer includes 15 parts of nitrogen-fixing bacteria, 26 parts of chelated zinc, 10 parts of chelated iron, 12 parts of chelated magnesium, 8 parts of chelated copper, and 8 parts of organic ...

Embodiment 2

[0028] A secondary saline-alkali soil improvement agent containing phosphogypsum and a slow-release binder, in parts by mass, whose raw material formula is as follows:

[0029] 180 parts of phosphogypsum, 250 parts of citric acid residue, 200 parts of slow-release binder, 160 parts of lobster shell, 120 parts of cottonseed meal, 30 parts of phytase, 8 parts of fly ash, 800 parts of sorghum distiller's grains, 10 parts of trace element fertilizer Wherein, the slow-release binder includes by mass parts: 4 parts of polyvinyl alcohol, 1 part of gelatinized starch, 2 parts of phosphogypsum, 1 part of ammonium sulfate, 1 part of sodium chloride, fluorosilicic acid 0.7 parts of sodium, 2 parts of potassium chloride, and 0.4 parts of superabsorbent resin.

[0030] Wherein, the trace element fertilizer includes 15 parts of nitrogen-fixing bacteria, 26 parts of chelated zinc, 10 parts of chelated iron, 12 parts of chelated magnesium, 8 parts of chelated copper, and 8 parts of organic ma...

Embodiment 3

[0033] A secondary saline-alkali soil improvement agent containing phosphogypsum and a slow-release binder, in parts by mass, whose raw material formula is as follows:

[0034] 140 parts of phosphogypsum, 300 parts of citric acid residue, 160 parts of slow-release binder, 120 parts of lobster shell, 85 parts of cottonseed meal, 30 parts of phytase, 10 parts of fly ash, 850 parts of sorghum distiller's grains, 10 parts of trace element fertilizer Wherein, the slow-release binder includes by mass parts: 4 parts of polyvinyl alcohol, 1 part of gelatinized starch, 2 parts of phosphogypsum, 1 part of ammonium sulfate, 1 part of sodium chloride, fluorosilicic acid 0.7 parts of sodium, 2 parts of potassium chloride, and 0.4 parts of superabsorbent resin.

[0035]The trace element fertilizer comprises 15 parts by mass parts of nitrogen-fixing bacteria, 26 parts of chelated zinc, 10 parts of chelated iron, 12 parts of chelated magnesium, 8 parts of chelated copper, and 8 parts of organ...

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PUM

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Abstract

The invention discloses a modifier containing phosphogypsum and a slow-release binder and used for secondary salinization of a land. The modifier comprises, by mass percentage, 120-180 parts of phosphogypsum, 250-400 parts of citric acid residue, 160-200 parts of a slow-release binder, 120-160 parts of lobster shells, 80-120 parts of cottonseed meal, 30-60 parts of phytase, 8-20 parts of coal ash, 800-1200 parts of sorghum vinasse and 10-14 parts of a trace element fertilizer. According to the modifier provided in the invention, nutritional components match reasonably, mutually combine, affect each other, and coordinate, so that secondary salinization of a land due to excessive fertilization is overcome.

Description

technical field [0001] The invention relates to a secondary saline-alkali soil improver containing phosphogypsum and a slow-release binder and its application method. Background technique [0002] Soil secondary salinization, also known as "secondary salinization", refers to the process of turning good cultivated land into "salinization" due to unreasonable cultivation and irrigation measures and changes in vegetation. It mainly occurs in my country's North China Plain, Songliao Plain, Hetao Plain, Weihe Plain and other places. There are three main reasons for the formation of secondary salinization: First, the drainage system of farmland is not smooth, and a large amount of water diversion irrigation has raised the groundwater level, increased the speed of groundwater moving upward through the soil capillary and the evaporation of groundwater, thereby increasing the groundwater and the lower level. The salt in the soil accumulates to the surface. Second, unreasonable irrig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/02C05G3/04C09K17/40C09K109/00C09K101/00C05G3/60C05G3/80
CPCC05C11/00C05G3/00C05G3/60C05G3/80C09K17/40C09K2101/00C09K2109/00C05F1/005C05F5/002C05F5/006C05F5/008C05F11/00C05F11/08C05D9/02C05D1/02C05D3/02C05D5/00C05D9/00
Inventor 王胜
Owner SHANDONG SUNWAY LANDSCAPE TECH
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