Moisture-proof silicon-magnesium composite granular fertilizer and preparation method thereof

A technology of composite granules and silicon-magnesium, applied in the field of agriculture, can solve the problems affecting the application performance of other fertilizers, increase the difficulty of mechanized fertilization, and increase the difficulty of storage, so as to be suitable for large-scale production, improve the utilization rate of NPK, and reduce the difficulty of storage Effect

Active Publication Date: 2019-06-25
广东省科学院南繁种业研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of packaging, storage and transportation, the self-dissolving hardening phenomenon is relatively serious, which not only increases the difficulty of its storage but also affects its application effect, and significantly affects its appl

Method used

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  • Moisture-proof silicon-magnesium composite granular fertilizer and preparation method thereof
  • Moisture-proof silicon-magnesium composite granular fertilizer and preparation method thereof
  • Moisture-proof silicon-magnesium composite granular fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of moisture-proof silicon-magnesium composite granular fertilizer of the present embodiment is prepared by the following method:

[0039] (1) Mix 46 kg of anhydrous magnesium sulfate, 7 kg of montmorillonite and 2 kg of white carbon black evenly, pulverize them, and pass through a 20-mesh sieve to obtain mixture A.

[0040] (2) Mix 25kg of sodium silicate, 4kg of montmorillonite and 1kg of white carbon black evenly, pulverize them, and pass through a 20-mesh sieve to obtain mixture B.

[0041] (3) 6kg of bentonite and 4kg of magnesium stearate were mixed evenly, pulverized, and passed through a 20-mesh sieve to obtain mixture C.

[0042] (4) Add water to 5kg sodium carboxymethylcellulose to prepare a solution with a concentration of 0.5kg / L to obtain 10L of solution D.

[0043] (5) Put mixture A and mixture B into a ball forming machine, adjust the rotating speed to 40 rpm, and mix for 10 minutes to obtain mixture E. Then, 6L solution D is evenly sprayed into mi...

Embodiment 2

[0048] A kind of moisture-proof silicon-magnesium composite granular fertilizer of the present embodiment is prepared by the following method:

[0049] (1) Mix 35kg of magnesium sulfate heptahydrate, 7kg of montmorillonite and 2kg of white carbon black evenly, pulverize them, and pass through a 20-mesh sieve to obtain mixture A.

[0050] (2) Mix 30kg of sodium silicate, 6kg of montmorillonite and 2kg of white carbon black evenly, pulverize them, and pass through a 20-mesh sieve to obtain mixture B.

[0051] (3) 10kg of bentonite and 3kg of magnesium stearate were uniformly mixed, pulverized, and passed through a 20-mesh sieve to obtain mixture C.

[0052] (4) Add water to 5kg sodium carboxymethylcellulose to prepare a solution with a concentration of 0.5kg / L to obtain 10L of solution D.

[0053](5) Put mixture A and mixture B into a ball forming machine, adjust the rotating speed to 40 rpm, and mix for 10 minutes to obtain mixture E. Then, 7L solution D is evenly sprayed into...

Embodiment 3

[0058] A kind of moisture-proof silicon-magnesium composite granular fertilizer of the present embodiment is prepared by the following method:

[0059] (1) Mix 60kg of anhydrous magnesium sulfate, 9kg of montmorillonite and 1kg of white carbon black evenly, pulverize them, and pass through a 20-mesh sieve to obtain mixture A.

[0060] (2) 15kg of sodium metasilicate pentahydrate, 2.5kg of montmorillonite and 0.5kg of white carbon black were uniformly mixed, pulverized, and passed through a 20-mesh sieve to obtain mixture B.

[0061] (3) 5kg of bentonite and 2kg of magnesium stearate were uniformly mixed, pulverized, and passed through a 20-mesh sieve to obtain mixture C.

[0062] (4) Add water to 5kg sodium carboxymethylcellulose to prepare a solution with a concentration of 0.5kg / L to obtain 10L of solution D.

[0063] (5) Put mixture A and mixture B into a ball forming machine, adjust the rotating speed to 40 rpm, and mix for 10 minutes to obtain mixture E. Then, 5 L of sol...

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Abstract

The invention relates to a moisture-proof silicon-magnesium composite granular fertilizer and a preparation method thereof, wherein the composite granular fertilizer is prepared from the following rawmaterials by weight: 25-70% of a magnesium fertilizer, 15-35% of a silicon fertilizer, 3-8% of a sustained release agent, 7-20% of an auxiliary agent 1, and 5-15% of an auxiliary agent 2, wherein themagnesium fertilizer is at least one selected from anhydrous magnesium sulfate, magnesium sulfate monohydrate, magnesium sulfate pentahydrate and magnesium sulfate heptahydrate, the silicon fertilizer is at least one selected from sodium silicate and sodium metasilicate, the sustained release agent is at least one selected from sodium carboxymethyl cellulose and corn starch, the auxiliary agent 1is a mixture of montmorillonite and white carbon black according to a mass ratio of 1-8:1, and the auxiliary agent 2 is a mixture of bentonite and magnesium stearate according to a mass ratio of 1-4:1. According to the present invention, the composite granular fertilizer can effectively prevent deliquescence so as to reduce the storage difficulty of the fertilizer and the storage cost of the fertilizer enterprise, and is suitable for mechanized application so as to improve the application efficiency and the utilization rate of the fertilizer.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a moisture-proof silicon-magnesium composite granular fertilizer and a preparation method thereof. Background technique [0002] The tropical and subtropical regions of South China have climate characteristics such as abundant heat, abundant precipitation, the same season of rain and heat, and a short frost-free period, and have unique advantages in agricultural production. However, abundant heat and rainfall also accelerated soil mineralization and leaching of nutrient ions, resulting in serious shortages of nutrients essential for crop growth such as calcium, magnesium, silicon, boron, sulfur, and molybdenum in the soil in this area. As a result, the rotation of medium and trace elements is the "minimum nutrient" that limits the further improvement of sugarcane yield, and has become one of the main restrictive factors for the improvement of crop yield and quality in the south. In ad...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 卢颖林安玉兴孙东磊陈立君龚恒亮赵欢欢戴思行付建涛
Owner 广东省科学院南繁种业研究所
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