Soil water retaining agent and preparation method thereof

A technology of soil water retaining agent and modified starch, which is applied in the direction of soil conditioning materials, chemical instruments and methods, organic fertilizers, etc., which can solve the problems of chemical fertilizer loss constraints, agricultural production efficiency, and low utilization rate of chemical fertilizers, so as to reduce the rate of water loss , good water retention performance, and the effect of promoting growth

Inactive Publication Date: 2017-09-01
HEFEI ZHUHANG ECOLOGY AGRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, the low utilization rate of conventional water-soluble chemical fertilizers and the serious loss of chemical fertilizers have become a major problem restricting agricultural production efficiency and affecting the environment. New fertilizers are an effective technology to improve the utilization rate of chemical fertilizers and reduce fertilizer losses.

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  • Soil water retaining agent and preparation method thereof
  • Soil water retaining agent and preparation method thereof
  • Soil water retaining agent and preparation method thereof

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preparation example Construction

[0029] The present invention also provides a preparation method of the above-mentioned soil water-retaining agent, comprising the following steps:

[0030] a) After adding water to tea saponin, trehalose, methylcellulose, and hydroxypropylmethylcellulose and stirring evenly, a mixed solution is obtained;

[0031] b) adding activated carbon and sepiolite powder to the mixed solution obtained in step a), after stirring evenly, drying and pulverizing to obtain mixed particles;

[0032] c) adding water to the modified starch, guar gum, and sodium polyacrylate and stirring evenly, then adding the mixed granules obtained in step b), mixing evenly, drying and pulverizing to obtain a soil water retaining agent.

[0033] The above-mentioned modified starch, guar gum, sodium polyacrylate, activated carbon, sepiolite powder, tea saponin, trehalose, methylcellulose, and hydroxypropylmethylcellulose are all the same as above, and will not be repeated here.

[0034] In an embodiment of the...

Embodiment 1

[0039] The soil water retaining agent includes the following raw materials in parts by weight:

[0040] 9 parts of carboxymethyl starch, 18 parts of guar gum, 11 parts of sodium polyacrylate, 20 parts of activated carbon with a particle size of 100 mesh, 8 parts of sepiolite powder with a particle size of 300 mesh, 4.7 parts of tea saponin, 12 parts of trehalose, 6 parts of methylcellulose, 10 parts of hydroxypropyl methylcellulose;

[0041] The preparation method of soil water retaining agent, comprises the following steps:

[0042] a) After adding water to tea saponin, trehalose, methylcellulose, and hydroxypropylmethylcellulose and stirring evenly, a mixed solution is obtained; the amount of water added accounts for 1.2 times the total weight of methylcellulose;

[0043] b) adding activated carbon and sepiolite powder to the mixed solution obtained in step a), after stirring evenly, drying and pulverizing to obtain mixed particles;

[0044] c) After adding water to carbo...

Embodiment 2

[0046] The soil water retaining agent includes the following raw materials in parts by weight:

[0047] 8 parts of phosphate ester starch, 13 parts of guar gum, 12 parts of sodium polyacrylate, 12 parts of activated carbon with a particle size of 150 mesh, 7 parts of sepiolite powder with a particle size of 320 mesh, 5.5 parts of tea saponin, 11 parts of trehalose, 7 parts of Parts of methylcellulose, 9.5 parts of hydroxypropyl methylcellulose;

[0048]The preparation method of soil water retaining agent, comprises the following steps:

[0049] a) After adding water to tea saponin, trehalose, methylcellulose, and hydroxypropylmethylcellulose and stirring evenly, a mixed solution is obtained; the amount of water added accounts for 1.5 times the total weight of methylcellulose;

[0050] b) adding activated carbon and sepiolite powder to the mixed solution obtained in step a), after stirring evenly, drying and pulverizing to obtain mixed particles;

[0051] c) After adding wat...

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Abstract

The invention discloses a soil water retaining agent and a preparation method thereof. The soil water retaining agent is prepared from the following raw materials in parts by weight: 5 to 10 parts of modified starch, 10 to 20 parts of guar gum, 8 to 15 parts of sodium polyacrylate, 10 to 20 parts of activated carbon, 3 to 8 parts of sepiolite powder, 4 to 8 parts of tea saponin, 7 to 12 parts of trehalose, 4 to 7 parts of methylcellulose and 9 to 13 parts of hydroxypropyl methyl cellulose. The soil water retaining agent has the advantages that the modified starch, the guar gum, the sodium polyacrylate, the activated carbon, the sepiolite powder, the tea saponin, the trehalose, the methylcellulose and the hydroxypropyl methyl cellulose are used as the raw materials to prepare the soil water retaining agent; the good water retaining ability on the soil is realized; the sodium polyacrylate can adsorb water and store into the activated carbon and the sepiolite powder, and the tea saponin, the trehalose, the methylcellulose and the hydroxypropyl methyl cellulose at the surfaces of the activated carbon and the sepiolite powder have the water retaining ability and can reach the water retaining function, so that the water loss rate in the soil is reduced.

Description

technical field [0001] The invention relates to the field of water-retaining agents, in particular to a soil water-retaining agent and a preparation method thereof. Background technique [0002] Water and fertilizer are two important factors affecting agricultural production. However, on the one hand, the low utilization rate of conventional water-soluble chemical fertilizers and serious fertilizer losses have become a major problem restricting agricultural production efficiency and affecting the environment. New fertilizers are an effective technology to increase the utilization rate of chemical fertilizers and reduce fertilizer losses. On the other hand, the shortage of water resources makes the urgency of agricultural water saving increasingly stronger. The use of water-retaining agents in dryland agriculture and water-saving agriculture has become an important water-saving technology. The integrated development of fertilizers and water-retaining agents to develop water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K101/00
CPCC09K17/40C09K2101/00
Inventor 范子辉
Owner HEFEI ZHUHANG ECOLOGY AGRI TECH CO LTD
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