A kind of water-soluble soil salinization improver and its preparation method and application
A salinization and improver technology, applied in chemical instruments and methods, applications, soil conditioning materials, etc., can solve problems such as poor soil physical properties, salinity hazards, etc., to increase porosity, slow down the rate of aggregation, The effect of improving ventilation and water permeability
Active Publication Date: 2017-10-27
BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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Problems solved by technology
[0005] The purpose of the present invention is to provide a water-soluble soil salinization improver and its preparation method and application. The present invention solves the problems of poor soil physical properties and saline-alkali hazards, improves the physical properties of the soil, and improves the soil quality. Pores increase and bulk density decreases, which is conducive to the exchange of water, air, heat, etc. in the soil to improve soil fertility; at the same time, it reduces the harm of salt ions to soil and crops
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Embodiment 1
[0024] Embodiment 1, preparation and performance test of water-soluble soil salinization improver
[0025] 1. Preparation of water-soluble soil salinization modifier
[0026] Weigh each component according to the following mass ratio: 1:3:3:2:8:3 guar gum, nonionic polyacrylamide, potassium polyacrylate, potassium polysilicate, citric acid and monoammonium phosphate , through pulverization, dry powder stirring and mixing, and granulation to obtain the water-soluble soil salinization modifier of the present invention.
[0027] Two, the water-soluble soil salinization improving agent of the present invention is to the leaching action test of water-soluble sodium ion, chloride ion and sulfate ion in saline-alkali soil
[0028] By infiltration barrel simulation test, under the situation of increasing soil salinity, investigate the leaching effect of the present invention on saline-alkali soil:
[0029] (1) Reference test: Simulate the maximum water holding capacity in the field....
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The invention discloses a water-soluble soil salinization improver and a preparation method and an application of the improver. The water-soluble soil salinization improver is prepared from guar gum, nonionic polyacrylamide, potassium polyacrylate, potassium polysilicate, citric acid and monoammonium phosphate according to a mass ratio of (5-8) to (10-16) to (10-16) to (8-18) to (30-50) to (10-20). The preparation method of the water-soluble soil salinization improver comprises the following steps: mixing guar gum, nonionic polyacrylamide, potassium polyacrylate, potassium polysilicate, citric acid and monoammonium phosphate according to a ratio, and prilling to prepare the water-soluble soil salinization improver. The application of the water-soluble soil salinization improver is characterized by spraying or irrigating the soil salinization improver to the salinization soil. The water-soluble soil salinization improver has the advantages that micro-aggregates are formed by the soil after the improver is applied to the salinization soil, the volume weight of the soil can be reduced, the total porosity of the soil is increased, the air permeability and water permeability are improved, the rate of gathering the salt of the deep soil to the earth surface is reduced, the rate of washing the salt is increased, the base exchange capacity is increased, the pH value is regulated, and the utilization value of the soil is increased.
Description
technical field [0001] The invention relates to a water-soluble soil salinization improver and its preparation method and application, belonging to the technical field of soil improvement. Background technique [0002] Soil salinization is one of the types of soil degradation. It is a global problem. It not only causes the destruction of soil resources and soil degradation, but also directly affects crop yield. Today, with the increasing population and decreasing arable land, it seriously restricts the social economy. development and progress. [0003] A large number of experimental results show that the application of soil amendments is one of the important measures to restore soil salinization, but natural soil amendments are easily decomposed by soil microorganisms, the application cycle is short, and the amount is large, and a large amount of cations released after application are toxic to the soil The artificial soil improver is not easy to be decomposed by soil microo...
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IPC IPC(8): C09K17/40C09K101/00C09K109/00
CPCC09K17/40C09K2109/00
Inventor 刘善江吴荣陈益山李洁
Owner BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES