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Cold-resistant drought-resistant water-retaining fertilizer-preserving improver for loose soil

A water-retaining, fertilizer-retaining and soil-loosening technology, which is applied to soil conditioning materials, organic fertilizers, fertilization devices, etc., can solve the problems that water-retaining agents cannot provide crops well and have poor resistance, and achieve strong water-retaining effects, reduce mutual inhibition, Effect of improving cold resistance and cold resistance

Active Publication Date: 2019-07-09
北京贝德绿环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing water-retaining improvers often ignore their ability to release water when pursuing extremely high water-absorbing multiples, so that the water in the water-retaining agent cannot be provided to crops well, and it competes with the water absorption of plant roots; in order to achieve a fertilizer It is multi-purpose and can be compounded with a variety of fertilizers, but the various elements are prone to mutual inhibition; the soil loosened by the amendment has poor resistance to external effects, such as collapse under pressure, etc.

Method used

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  • Cold-resistant drought-resistant water-retaining fertilizer-preserving improver for loose soil
  • Cold-resistant drought-resistant water-retaining fertilizer-preserving improver for loose soil
  • Cold-resistant drought-resistant water-retaining fertilizer-preserving improver for loose soil

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preparation example Construction

[0064] In some preferred embodiments, the preparation method of the modified clay comprises the following steps:

[0065] (1) in an ice bath, clay, 1-carboxybenzocyclobutene, water and catalyst are mixed uniformly to obtain mixture 1;

[0066] (2) Place mixture 1 at -0.05~-0.1MPa, and dry it in an oven at 70~90° C. for 6~12 hours to obtain reactant 1;

[0067] (3) After the reactant 1 is cooled, it is crushed and screened to obtain particles with a particle size of 0.5-2 microns, which is modified clay.

[0068] In some preferred embodiments, the weight ratio of 1-carboxybenzocyclobutene to clay in the step (1) is (0.5-1): 1; further preferably, the 1-carboxybenzocyclobutene is The weight ratio of alkene and clay was 0.8:1.

[0069] In some preferred embodiments, the catalyst in the step (1) is tetrabutylammonium bromide; further preferably, the molar ratio of the tetrabutylammonium bromide to 1-carboxybenzocyclobutene is (0.003-0.007): 1; further, the molar ratio of the te...

Embodiment 1

[0086] Example 1 provides a loose soil, cold-resistant, drought-resistant, water-retaining, and fertilizer-reserving improver. In parts by weight, its preparation raw materials include: 40 parts of polyacrylamide, 12 parts of potassium polyacrylate, 22 parts of potassium fulvic acid, and 13.4 parts of inorganic fertilizer. parts, 3 parts of sodium alginate, and 7.5 parts of clay.

[0087] The polyacrylamide is an anionic polyacrylamide with a weight average molecular weight of 15 million.

[0088] The inorganic fertilizer is a mixture of calcium fertilizer, magnesium fertilizer, iron fertilizer and manganese fertilizer; the weight ratio of the calcium fertilizer, magnesium fertilizer, iron fertilizer and manganese fertilizer is 18:36:12:1; the calcium fertilizer is nitric acid Calcium and magnesium fertilizers are magnesium sulfate heptahydrate, iron fertilizers are ferrous sulfate heptahydrate, and manganese fertilizers are manganese chloride tetrahydrate.

[0089] The parti...

Embodiment 2

[0096] Embodiment 2 provides a cold-resistant, drought-resistant, water-retaining, and fertilizer-retaining modifier for loose soil, which is different from Embodiment 1 in that the clay contains modified clay, and the weight of the modified clay and the unmodified clay is The ratio is 0.5:1.

[0097] The preparation raw materials of the modified clay include 1-carboxybenzocyclobutene and clay, and the preparation method includes the following steps:

[0098] (1) in an ice bath, clay, 1-carboxybenzocyclobutene, water and catalyst are mixed uniformly to obtain mixture 1;

[0099] (2) The mixture 1 was placed at -0.08MPa and dried in an oven at 80°C for 9 hours to obtain the reactant 1;

[0100] (3) After the reactant 1 is cooled, it is crushed and screened to obtain particles with a particle size of 1 micron, which is modified clay.

[0101] In the described step (1), the weight ratio of 1-carboxybenzocyclobutene and clay is 0.8:1, and the catalyst is tetrabutylammonium bromi...

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Abstract

The invention discloses a cold-resistant drought-resistant water-retaining fertilizer-preserving improver for loose soil. The raw materials for preparing the improver at least include, in parts by weight, 30-50 parts of polyacrylamide, 10-15 parts of potassium polyacrylate, 20-25 parts of potassium fulvate, 10-20 parts of inorganic fertilizer, 1-5 parts of sodium alginate and 5-10 parts of clay. The water-retaining improver has a reasonable water-absorption multiple, fast water absorption and a good water retention effect, and the soil moisture can be adjusted flexibly under the humid or drought conditions, so that the soil is loosened, and heat preservation of the soil is achieved; and through reasonable compounding of multiple fertilizer, the mutual inhibition among the elements is reduced, so that the fertilizer utilization rate is improved to a greater extent.

Description

technical field [0001] The invention relates to the field of chemical fertilizers, in particular to an improver for loose soil, cold resistance, drought resistance, water retention and fertilizer retention. Background technique [0002] The main component of the water retention modifier is a hygroscopic polymer material. Because it contains a large number of hydrophilic groups, the water absorption rate is fast, and the gel formed after water absorption has a good water retention capacity, which can effectively adjust the humidity in the soil and retain water. The agent expands and contracts during the process of absorbing water and releasing water, making the soil loose and breathable without clumping and agglomeration, so the roots of crops can absorb more oxygen and nutrients; in addition, the improvement effect is also reflected in that it can adjust the pH of the soil Value, provide sufficient and comprehensive nutrients to crops, promote crop growth, etc. [0003] Whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K101/00C09K109/00
CPCC09K17/40C09K2101/00C09K2109/00
Inventor 黄华宇高怀虎
Owner 北京贝德绿环保科技有限公司
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