Improver of soil physicochemical characters and preparation method thereof

A technology for physical and chemical properties and modifiers, which is applied to the field of soil physical and chemical properties modifiers and their preparation, can solve the problems of poor sustainability of structural improvement effects, lack of physical and chemical properties, poor water and fertilizer retention performance, and achieves simple preparation methods and application methods. Reduced corrosion resistance, low cost effect

Inactive Publication Date: 2016-09-21
江苏省有色金属华东地质勘查局地球化学勘查与海洋地质调查研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One of the purposes of the present invention is to provide a soil physical and chemical property improver and a preparation method thereof in view of the above-mentioned deficiencies, in order to solve the lack of improvement agents for saline-alkali land in the prior art that are specially designed for poor soil physical and chemical properties, hardening, and poor water and fertilizer retention. Soil structure, and the structure improvement effect is poor in sustainability, and it needs to be repeated several times to achieve the final physical and chemical structure improvement purpose and other technical problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] In the present embodiment, the total amount of preparing the soil physical and chemical properties improver of the present invention is 100kg, and the specific steps are:

[0015] Step 1. First weigh 54kg of straw, 13kg of polyacrylamide, 27kg of humus and 6kg of inorganic salt (the impurities mixed in the mixing process are not included in the total mass, and the actual mass may slightly rise); among them, the mass of inorganic salt is A mixture of 35% calcium superphosphate, 30% ammonium sulfate, 3% magnesium sulfate, 8% ferric chloride, 10% ferrous sulfate, 3% calcium nitrate, 2.5% zinc sulfate, and 2% borax in percentage terms;

[0016] Step 2, the straw is mechanically crushed into a powder by a pulverizer, and then the polyacrylamide and the inorganic salt are dissolved in a certain amount of water;

[0017] Step 3, uniformly mixing the humus and the powdery straw, and drying;

[0018] Step 4: Add the mixture of humus and powdery straw into the mixed solution of ...

Embodiment 2

[0021] In the present embodiment, the total amount of preparing the soil physical and chemical properties improver of the present invention is 300kg, and the specific steps are:

[0022] Step 1. First weigh 90kg of straw, 30kg of polyacrylamide, 150kg of humus and 30kg of inorganic salt (the impurities mixed in the mixing process are not included in the total mass, and the actual mass may rise slightly); among them, the mass of inorganic salt is A mixture of 50% calcium superphosphate, 35% ammonium sulfate, 5% magnesium sulfate, 5% ferric chloride, 7% ferrous sulfate, 10% calcium nitrate, 3% zinc sulfate, 2.5% borax in percentage terms; on the other hand , the straw includes a powdery mixture of crop straw such as wheat, rice, sorghum, and corn;

[0023] Step 2, the straw is mechanically crushed into a powder by a pulverizer, and then the polyacrylamide and the inorganic salt are dissolved in a certain amount of water;

[0024] Step 3, uniformly mixing the humus and the powde...

Embodiment 3

[0028] In the present embodiment, the total amount of preparing the soil physical and chemical properties improver of the present invention is 500kg, and the specific steps are:

[0029] Step 1. First weigh 205kg of straw, 91kg of polyacrylamide, 181kg of humus and 23kg of inorganic salt (the impurities mixed in the mixing process are not included in the total mass, and the actual mass may slightly rise); among them, the mass of inorganic salt is A mixture of 42% calcium superphosphate, 25% ammonium sulfate, 8% magnesium sulfate, 10% ferric chloride, 5% ferrous sulfate, 6% calcium nitrate, 2% zinc sulfate, 3% borax in percentage terms; on the other hand , the straw includes a powdery mixture of wheat, rice, sorghum, corn and other crop straw; the polyacrylamide is preferably zwitterionic polyacrylamide, which has good flocculation, water retention and fertilizer retention effects; the humus is best to use weathered coal, It can form an irreversible coagulation state with calci...

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Abstract

The invention discloses an improver of soil physicochemical characters and a preparation method of the improver of the soil physicochemical characters, and belongs to the improver for treatment of saline alkali soil. The improver comprises the following components in a mass ratio: 30 to 60 parts of straw, 10 to 20 parts of polyacrylamide, 30 to 50 parts of humus and 5 to 10 parts of inorganic salts; the inorganic salts containing elements which are necessary for crop growth such as calcium, magnesium, iron, zinc, boron and nitrogen are added in the improver, so that losses of a large number of the inorganic salts in soil due to salt leaching can be supplemented to meet the demands of the crop growth for the inorganic salts. The preparation method and the application method of the improver are simple, the use amount of the improver is small, the improver takes effect quickly, durable in effect and suitable for large-area popularization; after the improver is applied for 1 to 2 times, the soil structure can be obviously improved, and the amount of soil aggregates is increased, and salt ions in the soil can be further promoted to be leached; a plurality of substances such as polyacrylamide can enhance the permeability and permeability of the soil and reduce soil corrosion resistance, and further have good water retention, soil conservation and fertilizer slow-release performances.

Description

technical field [0001] The invention relates to a soil (saline-alkali land) treatment improver, more specifically, the invention mainly relates to a soil physical and chemical property improver and a preparation method thereof. Background technique [0002] At present, soil salinization has become a global resource and environmental problem. my country's existing saline-alkali land area is about 99 million hectares, and with the implementation of the coastal development strategy, the area is still growing. In the context of the continuous reduction of arable land nationwide and the increasing shortage of construction land, this is a very valuable strategic resource. At the same time, due to unreasonable irrigation, secondary salinization of land is not uncommon. How to quickly improve and make good use of these low-yielding lands has become a practical issue related to the speed of social development. The application of improvers is an important way to improve the use of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K109/00
CPCC09K17/40C09K2109/00
Inventor 程知言姜夏烨胡建葛云杨晋炜孙丰瑞董军林楼景花
Owner 江苏省有色金属华东地质勘查局地球化学勘查与海洋地质调查研究院
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