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Special controlled-release fertilizer for highland barley as well as preparation method and application of special controlled-release fertilizer

A technology of controlled-release fertilizer and highland barley, which is applied in the agricultural field, can solve the problems of preparing controlled-release fertilizer without the growth characteristics of highland barley, and achieve the effects of reducing labor intensity, improving utilization rate, and long slow-control time

Inactive Publication Date: 2017-10-24
成都璐城科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a special controlled-release fertilizer for highland barley to solve the problem in the prior art that there is no controlled-release fertilizer specially prepared for the growth characteristics of highland barley

Method used

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Examples

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preparation example Construction

[0029] A preparation method of special controlled-release fertilizer for highland barley, comprising the following steps:

[0030] Step 1: preparing fertilizer granules: taking the urea, diammonium phosphate, zinc sulfate heptahydrate and potassium sulfate in parts by weight, pulverizing, mixing evenly, granulating, drying, and sieving to make fertilizer granules;

[0031] Step 2: Prepare a film coating solution: weigh the polyacrylamide, sodium polyacrylate, and starch-grafted sodium acrylate in parts by weight, add a solvent, stir evenly, and form a film coating solution;

[0032] Step 3: Spray the film coating solution on the surface of the fertilizer granules prepared in Step 1, and dry to obtain.

[0033] In the step 1, after being pulverized, passing through a sieve of 80-120 mesh and then mixing evenly, the sieving is passing through a sieve of 80-120 mesh.

[0034] The solvent in the step 2 is 70-90% ethanol aqueous solution, and the added amount is 3-5 times the volu...

Embodiment 1

[0038] Preparation of a special controlled-release fertilizer for highland barley.

[0039] The composition of the fertilizer granules in parts by weight is: 15 parts of urea, 21 parts of diammonium phosphate, 5 parts of zinc sulfate heptahydrate, and 9 parts of potassium sulfate.

[0040] The components of the film coating in parts by weight are: 12 parts of polyacrylamide, 16 parts of sodium polyacrylate, and 2 parts of starch grafted sodium acrylate.

[0041] A preparation method of special controlled-release fertilizer for highland barley comprises the following steps:

[0042] Step 1: Prepare fertilizer granules: take the urea, diammonium phosphate, zinc sulfate heptahydrate and potassium sulfate in parts by weight, pass through an 80-mesh sieve after crushing, mix evenly, granulate, dry, sieve, pass through an 80-mesh sieve Mesh sieve to make fertilizer granules;

[0043] Step 2: Prepare film coating solution: weigh the polyacrylamide, sodium polyacrylate, and starch-g...

Embodiment 2

[0046] Preparation of a special controlled-release fertilizer for highland barley.

[0047] The composition of the fertilizer granules in parts by weight is: 10 parts of urea, 30 parts of diammonium phosphate, 2 parts of zinc sulfate heptahydrate, and 5 parts of potassium sulfate.

[0048] The components of the film coating in parts by weight are: 15 parts of polyacrylamide, 12 parts of sodium polyacrylate, and 2 parts of starch grafted sodium acrylate.

[0049] A preparation method of special controlled-release fertilizer for highland barley comprises the following steps:

[0050] Step 1: Prepare fertilizer granules: take the urea, diammonium phosphate, zinc sulfate heptahydrate and potassium sulfate in parts by weight, pass through a 120-mesh sieve after crushing, mix evenly, granulate, dry, sieve, and pass through a 120-mesh sieve. Mesh sieve to make fertilizer granules;

[0051] Step 2: Prepare film coating solution: weigh the polyacrylamide, sodium polyacrylate, and sta...

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PUM

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Abstract

The invention discloses a special controlled-release fertilizer for highland barley as well as a preparation method and an application of the special controlled-release fertilizer. According to the special controlled-release fertilizer, the problem that a controlled-release fertilizer specially prepared aiming at growth characteristics of the highland barley has not been developed in the prior art is solved. The special controlled-release fertilizer for the highland barley contains fertilizer particles and a film coating packaging the fertilizer, wherein the fertilizer particles are prepared from the following components in parts by weight: 10-20 parts of urea, 15-30 parts of diammonium phosphate, 2-8 parts of zinc sulfate heptahydrate and 5-12 parts of potassium sulfate; and the film coating is prepared from the following components in parts by weight: 10-15 parts of polyacrylamide, 12-18 parts of sodium polyacrylate and 1-2 parts of starch grafted sodium acrylate. The preparation method comprises the steps of preparing the fertilizer particles, preparing a film coating solution, spraying the film coating solution to the surfaces of the fertilizer particles, and drying, so as to obtain the special controlled-release fertilizer. The special controlled-release fertilizer for the highland barley is long in effective controlled-release time, complete in nutrient content and capable of effectively promoting the growth of the highland barley and improving soil quality, so that the labor intensity is reduced.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a special controlled-release fertilizer for highland barley and its preparation method and application. Background technique [0002] Highland barley hulless barley is a kind of cereal crop of Poaceae Hordeum. Because of the separation of inner and outer glumes and bare kernels, it is also called naked barley, barley and rice barley. It is mainly produced in China's Tibet, Qinghai, Sichuan, Yunnan and other places. Highland barley is flat in nature, salty in taste, and belongs to the spleen, stomach, and large intestine meridians. It contains protein, fat, starch, and vitamin B. It has the effects of nourishing the spleen and stomach, nourishing qi and stopping diarrhea, strengthening muscles and strength, dehumidifying and sweating, and is suitable for spleen and stomach qi deficiency. , fatigue, weakness, diarrhea and loose stools, there is no taboo. [0003] ...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/00A01C21/00C05G3/80
CPCA01C21/00C05B7/00C05G3/80C05G5/37C05C9/00C05D1/02C05D9/02
Inventor 伍长城
Owner 成都璐城科技有限公司
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