Agricultural soil water and fertility retaining agent with sustained release effect and preparation method thereof

An agricultural water-retaining agent, water-retaining and fertilizer-retaining technology, applied in application, agriculture, fertilization equipment, etc., can solve problems such as uneven mixing, agglomeration of finished products in the preparation process, and achieve saving usage, reducing agricultural production costs, and reusability Good results

Inactive Publication Date: 2012-05-02
魏荣华 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process is to mix all the raw materials, add water to form a solution, and then dry to obtain the finished product, but the preparation process or the finished product has agglomeration or uneven stirring.

Method used

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  • Agricultural soil water and fertility retaining agent with sustained release effect and preparation method thereof
  • Agricultural soil water and fertility retaining agent with sustained release effect and preparation method thereof

Examples

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Effect test

Embodiment 1

[0023] An agricultural soil water-retaining and fertilizer-retaining agent with a slow-release effect. The raw materials are: potassium dihydrogen phosphate (purchased from Wujiang Guangyi Fine Chemical Factory) 5kg, 50-mesh polyacrylamide (purchased from Anhui Huajingxin Materials Co., Ltd.) granules 30kg, humic acid (purchased from Shanxi Xinfa Humic Acid Factory) 120kg.

[0024] The preparation method of the described agricultural soil water-retaining and fertilizer-retaining agent with slow-release action comprises the following steps:

[0025] (1) Dissolve potassium dihydrogen phosphate in water to prepare an aqueous solution of potassium dihydrogen phosphate with a concentration of 5wt‰;

[0026] (2) Add the agricultural water-retaining agent granules to the aqueous solution of potassium dihydrogen phosphate in step (1), soak to make it absorb the aqueous solution and expand to 50 times the original volume, and the soaking time is 3 hours;

[0027] (3) Add humic acid to...

Embodiment 2

[0031] An agricultural soil water-retaining and fertilizer-retaining agent with a slow-release effect. The raw materials are: potassium dihydrogen phosphate (purchased from Wujiang Guangyi Fine Chemical Factory) 3kg, 50-mesh polyacrylamide (purchased from Anhui Huajingxin Material Co., Ltd.) particles 40kg, humic acid (purchased from Shanxi Xinfa Humic Acid Factory) 80kg.

[0032] The preparation method of the described agricultural soil water-retaining and fertilizer-retaining agent with slow-release action comprises the following steps:

[0033] (1) Dissolve potassium dihydrogen phosphate in water to prepare an aqueous solution of potassium dihydrogen phosphate with a concentration of 5wt‰;

[0034] (2) Add the agricultural water-retaining agent granules into the aqueous solution of potassium dihydrogen phosphate in step (1) and soak to make it absorb the aqueous solution and expand to 50 times the original volume, and the soaking time is 3 hours;

[0035] (3) Add humic aci...

Embodiment 3

[0039] An agricultural soil water-retaining and fertilizer-retaining agent with a slow-release effect. The raw materials are: potassium dihydrogen phosphate (purchased from Wujiang Guangyi Fine Chemical Factory) 6kg, 50-mesh polyacrylamide (purchased from Anhui Huajingxin Material Co., Ltd.) particles 20kg, humic acid (purchased from Shanxi Xinfa Humic Acid Factory) 200kg.

[0040] The preparation method of the described agricultural soil water-retaining and fertilizer-retaining agent with slow-release action comprises the following steps:

[0041] (1) Dissolve potassium dihydrogen phosphate in water to prepare an aqueous solution of potassium dihydrogen phosphate with a concentration of 5wt‰;

[0042] (2) Add the agricultural water-retaining agent granules into the aqueous solution of potassium dihydrogen phosphate in step (1) and soak to make it absorb the aqueous solution and expand to 50 times the original volume, and the soaking time is 3 hours;

[0043] (3) Add humic ac...

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Abstract

The invention discloses an agricultural soil water and fertility retaining agent with a sustained release effect and a preparation method thereof. The agent consists of the following raw materials in part by weight: 3 to 6 parts of potassium dihydrogen phosphate, 20 to 40 parts of agricultural water retaining agent particles and 80 to 200 parts of humic acid. The preparation method comprises the following steps of: dissolving the potassium dihydrogen phosphate in water, soaking the agricultural water retaining agent particles in an aqueous solution, adding the humic acid when the particles absorb the water and are expanded to a saturated state, fully stirring to ensure that the humic acid is uniformly coated outside the expanded agricultural water retaining agent particles, drying, and grinding into particles. The agricultural soil water and fertility retaining agent with the sustained release effect has high water and fertility retaining properties and an obvious sustained release effect, is easy to prepare and low in raw material cost and can be widely applied to various crops.

Description

technical field [0001] The invention relates to the field of soil fertilizers used in agricultural and forestry production, in particular to an agricultural soil water and fertilizer retention agent with a slow-release effect and a preparation method thereof. Background technique [0002] Agriculture is the foundation of our country, and fertilizers have played a pivotal role in stabilizing the continuous growth of our country's agriculture. Fertilizer is closely related to crop production and is the basic link in the virtuous cycle of natural ecology. It plays an important role in the production of crops and green food. [0003] With the continuous development of my country's chemical fertilizer industry and agricultural production, the amount of fertilizer is increasing, and a large amount of fertilizer will inevitably lead to the problem of excessive fertilization, weaken the production capacity of crops, aggravate environmental pollution, and waste a lot of scarce re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 魏荣华杨浩深
Owner 魏荣华
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