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Agricultural granular zinc sulfate fertilizer and preparation method thereof

A technology of zinc sulfate and granules, applied in the field of fertilizers, can solve the problems of low zinc ion content and increase cost, and achieve the effect of easy absorption and utilization

Active Publication Date: 2013-10-02
SHENZHEN BATIAN ECOTYPIC ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, this zinc fertilizer also has the defect of low zinc ion content, and the mass percentage of zinc element is only 15-25%. It needs to apply more zinc fertilizer to achieve the purpose of increasing production, which greatly increases the cost.

Method used

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  • Agricultural granular zinc sulfate fertilizer and preparation method thereof
  • Agricultural granular zinc sulfate fertilizer and preparation method thereof
  • Agricultural granular zinc sulfate fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An agricultural granular zinc sulfate fertilizer comprises zinc sulfate and spray liquid. The spray liquid is composed of 5 parts of γ-polyglutamic acid, 5 parts of polyaspartic acid, 2 parts of xanthan gum and 88 parts of water in parts by mass. The mass ratio of zinc sulfate and spray solution is 90:10.

[0027] The preparation method of above-mentioned agricultural granular zinc sulfate fertilizer is as follows:

[0028] First, the synergist, binder, and water are adjusted into a liquid spray according to the formula, and evenly sprayed on the zinc sulfate in the disc granulator to granulate, and dried until the water content of the granules is below 3%, the product is obtained .

Embodiment 2

[0034] An agricultural granular zinc sulfate fertilizer comprises zinc sulfate and spray liquid. The spray liquid is composed of 10 parts of polyaspartic acid, 5 parts of xanthan gum and 85 parts of water in parts by mass. The mass ratio of zinc sulfate and spray solution is 92:8.

[0035] The preparation method of above-mentioned agricultural granular zinc sulfate fertilizer is as follows:

[0036] First, the synergist, binder, and water are prepared into a liquid spray according to the formula, and evenly sprayed on the zinc sulfate in the disc granulator to granulate, and dried at 65°C until the water content of the granules is less than 3%, that is, get the product.

Embodiment 3

[0042] An agricultural granular zinc sulfate fertilizer comprises zinc sulfate and spray liquid. The coating is composed of 5 parts of γ-polyglutamic acid, 10 parts of polyaspartic acid, 10 parts of alginic acid, 5 parts of fungal polysaccharide, 5 parts of xanthan gum and 80 parts of water in parts by mass. The mass ratio of zinc sulfate and spray solution is 90:10.

[0043] The preparation method of above-mentioned agricultural granular zinc sulfate fertilizer is as follows:

[0044] First, the synergist, binder, and water are prepared into a liquid spray according to the formula, and evenly sprayed on the zinc sulfate in the disc granulator to granulate, and dried at 65°C until the water content of the granules is less than 3%, that is, get the product.

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Abstract

The invention discloses an agricultural granular zinc sulfate fertilizer which comprises zinc sulfate and a spray liquid, wherein the spray liquid comprises the following components in parts by mass: 10-30 parts of synergist, 0-10 parts of binding agent and 75-90 parts of water; the mass ratio of the zinc sulfate to the spray liquid is (80-95):(20-5); and the synergist is a high molecular polymer, and comprises one or more of gamma-polyglutamic acid and salt thereof, polyaspartic acid and salt thereof, alginic acid and salt thereof and fungal polysaccharide. The invention also discloses a preparation method of the agricultural granular zinc sulfate fertilizer. Compared with the prior art, the agricultural granular zinc sulfate fertilizer has the advantages of low zinc nutrient release speed and long fertilizer efficiency, reduces the loss of zinc nutrient, and can be easily absorbed and utilized by plants; and the high molecular polymer can be easily degraded under natural environment conditions and is environment-friendly.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to an agricultural granular zinc sulfate fertilizer and a preparation method thereof. Background technique [0002] The zinc content in the soil has a great relationship with the parent material of the soil. For example, the soil with the parent material of basic rock and limestone has more zinc, while the soil with gneiss and quartzite has less. my country has a vast territory and many soil types. According to the existing data, the soil developed from the loess parent material and the soil affected by the Yellow River has a high pH value, quartz is the main mineral, and the available zinc content is generally low. The total zinc content in my country's soil is as low as <3ppm, as high as 709ppm, with an average of about 100ppm, while the average zinc content in the earth's lithosphere is about 80ppm. [0003] The content of zinc in crops is generally several parts per hun...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 邵海锋段继贤吴小丽卢蒙
Owner SHENZHEN BATIAN ECOTYPIC ENG
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