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A cold-resistant and drought-resistant fertilizer and water-retaining improver for loose soil

A technology of loosening soil and improving agent, applied in soil conditioning materials, organic fertilizers, fertilization devices, etc., can solve the problems that water-retaining agent can not provide crops well, poor resistance, etc., achieve strong water-retention effect, reduce mutual inhibition and water absorption quick effect

Active Publication Date: 2021-06-01
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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  • A cold-resistant and drought-resistant fertilizer and water-retaining improver for loose soil
  • A cold-resistant and drought-resistant fertilizer and water-retaining improver for loose soil

Examples

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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, mix clay, 1-carboxybenzocyclobutene, water and a catalyst evenly to obtain a mixture 1;

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

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

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

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

Embodiment 1

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

[0087] The polyacrylamide described 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 The calcium and magnesium fertilizer is magnesium sulfate heptahydrate, the iron fertilizer is ferrous sulfate heptahydrate, and the manganese fertilizer is manganese chloride tetrahydrate.

[0089] The particle...

Embodiment 2

[0096] Embodiment 2 provides a kind of loose soil anti-cold and drought-resistant fertilizer and water retention improving agent, and its difference with embodiment 1 is that the described clay contains modified clay, and wherein the weight of modified clay and unmodified clay The ratio is 0.5:1.

[0097] The preparation raw material of described modified clay comprises 1-carboxybenzocyclobutene and clay, and its preparation method comprises the following steps:

[0098] (1) In an ice bath, mix clay, 1-carboxybenzocyclobutene, water and a catalyst evenly to obtain a mixture 1;

[0099] (2) Place the mixture 1 at -0.08MPa and dry it 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 a granular substance with a particle size of 1 micron, which is the modified clay.

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

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Abstract

The invention discloses a cold-resistant, drought-resistant, fertilizer- and water-retaining improver for loose soil. The preparation raw materials include at least 30-50 parts of polyacrylamide, 10-15 parts of potassium polyacrylate, and 20-50 parts of potassium fulvic acid. 25 parts, 10-20 parts of inorganic fertilizer, 1-5 parts of sodium alginate, 5-10 parts of clay; the water retention improver has a reasonable water absorption multiple, fast water absorption, strong water retention effect, and can be flexibly adjusted under wet or dry conditions Soil moisture, loosening the soil, keeping the soil warm, and through the reasonable compounding of various fertilizers, the mutual inhibition between various elements is reduced, and the utilization rate of fertilizers is improved to a greater extent.

Description

technical field [0001] The invention relates to the field of chemical fertilizers, in particular to a cold-resistant, drought-resistant, fertilizer- and water-retaining improver for loose soil. Background technique [0002] The main component of the water retention improver 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 and releasing water, making the soil loose and breathable without agglomeration, so the roots of crops can absorb more oxygen and nutrients; in addition, the improvement effect is also reflected in its ability to adjust the pH of the soil value, provide sufficient and comprehensive nutrients to crops, and promote crop growth, etc. [0003] Existing water-retaining imp...

Claims

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Application Information

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Patent Type & Authority Patents(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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