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Wrapping layer, and outer wrapping type fertilizer containing medium and trace elements and having wrapping layer and preparation method thereof

A technology of medium and trace elements and coating layer, which is applied in layered/coated fertilizers, fertilizer mixtures, fertilization devices, etc., can solve the problems of high cost of nanomaterials and restricted additions.

Inactive Publication Date: 2020-04-10
中化农业(临沂)研发中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current cost of nanomaterials is often high, which limits their addition to most fertilizer products

Method used

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  • Wrapping layer, and outer wrapping type fertilizer containing medium and trace elements and having wrapping layer and preparation method thereof
  • Wrapping layer, and outer wrapping type fertilizer containing medium and trace elements and having wrapping layer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The preparation method of the outer package type fertilizer containing medium and trace elements of the present embodiment is as follows:

[0042] (1) Fully mix 3 kilograms of magnesia and 2 kilograms of zinc sulfate monohydrate powder through 80~150 mesh sieves;

[0043] (2) 1 kilogram of mass concentration is 70% sulfuric acid and 1 kilogram of mass concentration is 85% phosphoric acid to mix;

[0044] (3) In the wrapping drum, add 5 kg of powder containing medium and trace elements obtained in step (1) to 1000 kg of fertilizer granules, and spray 2 kg of acid solution obtained in step (2) to the fertilizer granules on the surface of the fertilizer particles to form a coating layer;

[0045] (4) The fertilizer is mixed with the anti-caking agent and then packaged after surface treatment to prepare an outer-wrapped fertilizer containing medium and trace elements.

Embodiment 2

[0050] The preparation method of the outer package type fertilizer containing medium and trace elements of the present embodiment is as follows:

[0051] (1) 10 kilograms of magnesia, 5 kilograms of zinc sulfate monohydrate and 5 kilograms of ferrous sulfate heptahydrate powders fully mixed through 80~150 mesh sieves;

[0052] (2) 50% sulfuric acid and 5 kg of mass concentration are mixed homogeneously by 60% phosphoric acid;

[0053] (3) In the wrapping drum, add 20 kg of powder containing medium and trace elements obtained in step (1) to 1000 kg of fertilizer granules, and spray 10 kg of acid solution obtained in step (2) onto the fertilizer granules , to react and form a coating on the surface of the fertilizer particles;

[0054] (4) The fertilizer is mixed with the anti-caking agent and then packaged after surface treatment to prepare an outer-wrapped fertilizer containing medium and trace elements.

Embodiment 3

[0059] The preparation method of the outer package type fertilizer containing medium and trace elements of the present embodiment is as follows:

[0060] (1) 15 kilograms of calcium oxide, 15 kilograms of magnesium oxide, 10 kilograms of zinc sulfate monohydrate and 10 kilograms of ferrous sulfate heptahydrate powders of 80~150 mesh sieves are fully mixed;

[0061] (2) 10 kilograms of mass concentrations are 60% sulfuric acid, 5 kilograms of mass concentrations are 85% phosphoric acid and 5 kilograms of mass concentrations are mixed homogeneously with 40% formic acid;

[0062] (3) In the wrapping drum, add 50 kg of powder containing medium and trace elements obtained in step (1) to 1000 kg of fertilizer granules, and spray 20 kg of acid solution obtained in step (2) to the fertilizer granules On the surface of the fertilizer particles, a coating layer is formed;

[0063] (4) The fertilizer is mixed with the anti-caking agent and then packaged after surface treatment to prepar...

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Abstract

The invention discloses a wrapping layer, and an outer wrapping type fertilizer containing medium and trace elements and having the wrapping layer and preparation method thereof. The wrapping layer comprises medium and trace elements, and the medium and trace elements are formed in the wrapping layer through a reaction of powder containing the medium and trace elements with acid liquor. Since theacid liquid is added into the wrapping layer, the medium and trace elements can be uniformly dispersed in the wrapping layer. Compared with the addition of chelated or nanoscale trace elements in theprior art, the invention has the following advantages: the adding manner of the trace elements is simple, the content of the trace elements is easy to control, production energy consumption is not increased, production conditions are easy to control, and the cost of raw materials is low. In addition, the wrapping layer can be firmly attached to the surfaces of fertilizer particles and hardly fallsoff, so the actual content of the medium and trace elements in the prepared fertilizer better accords with a theoretical content, and the efficiency of the fertilizer is guaranteed. Due to the addition of the acid liquid, the fertilizer has certain acidity, and has the effects of adjusting soil acidity and alkalinity and improving soil when applied to alkaline soil.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a wrapping layer, an outer wrapping type fertilizer containing medium and trace elements with a wrapping layer and a preparation method thereof. Background technique [0002] Fertilizers play a vital role in my country's agricultural production, and farmers are paying more and more attention to the use of fertilizers. However, in the actual process of using fertilizers, there is often a phenomenon of emphasizing the input of large amounts of elements and ignoring medium and trace elements, often resulting in reduced crop quality and even reduced yields. Production and development of nutrient-efficient fertilizers and the provision of comprehensive and sufficient nutritional products are the current focus of fertilizer product development. [0003] In the process of crop growth, medium and trace elements play a vital role. According to the "bucket theory" that cr...

Claims

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Application Information

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IPC IPC(8): C05G3/80C05G5/30C05G3/30
CPCC05B17/00
Inventor 焦卫平付春杰王子浩王建康任先顺刘晓波孙鹰翔
Owner 中化农业(临沂)研发中心有限公司
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