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Method for producing special multi-element fertilizer for rice from kieselguhr

A diatomaceous earth and multi-component technology, applied in the direction of fertilizer mixture, application, fertilization equipment, etc., can solve the problems of low effective silicon content of silicon fertilizer, poor particle disintegration, poor water solubility, etc., achieve fast solubility, improve Quality and the effect of reducing production costs

Active Publication Date: 2012-11-14
黑龙江华泽农牧发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problems of low effective silicon content, poor particle disintegration, slow dispersion and poor water solubility of existing silicon fertilizers; and provides a method for producing multi-component fertilizers for rice using diatomite

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0013] Specific embodiment one: utilize diatomaceous earth to produce the method for rice special-purpose multivariate fertilizer in the present embodiment to carry out according to the following steps:

[0014] Mix diatomite and hydroxide with a silicon content of more than 80% at a mass ratio of 1:1. The water content of the diatomite and hydroxide is 48% (mass), airtight, at a temperature of 100~1000 ℃, hydration reaction in a container with a pressure of 1.0~1.5 kg for 48 hours; use 3 times more than 7 ℃ water to cool down below 30 ℃, filter after precipitation, dry and pulverize to obtain a mixed material, and then add magnesium oxide powder, Magnesium oxide powder accounts for 6% of the mixed material, and the multi-component fertilizer specially used for rice can be obtained by mixing evenly; the hydroxide is calcium hydroxide and potassium hydroxide.

[0015] In this embodiment, the rice-specific multi-component fertilizer silicon magnesium calcium and trace elements r...

specific Embodiment approach 2

[0016] Specific embodiment two: utilize diatomite to produce the method for rice special-purpose multivariate fertilizer in the present embodiment to carry out according to the following steps:

[0017] Mix diatomite and hydroxide with a silicon content of more than 80% at a mass ratio of 1:1. The water content of the diatomite and hydroxide is 48% (mass), airtight, at a temperature of 200 ° C, Carry out the hydration reaction in a container with a pressure of 1.2 kg for 48 hours; use more than 3 times of 7 ℃ water to cool down below 30 ℃, filter after precipitation, dry and pulverize to obtain the mixed material, and then add magnesium oxide powder, magnesium oxide powder Accounting for 6% of the mixed material, mix evenly to obtain multi-component fertilizer for rice; the hydroxide is calcium hydroxide and potassium hydroxide.

[0018] In this embodiment, the rice-specific multi-component fertilizer silicon magnesium calcium and trace elements reach 86%, and the porosity is ...

specific Embodiment approach 3

[0019] Specific embodiment three: utilize diatomaceous earth to produce the method for the special multivariate fertilizer of paddy rice in the present embodiment to carry out according to the following steps:

[0020] Mix diatomite with a silicon content of 20% to 30% and hydroxide at a mass ratio of 1:1. The water content of the diatomite and hydroxide is 48% (mass), airtight, at a temperature of 850~999°C, hydration reaction in a container with a pressure of 1.01~1.09 kg for 1~8h; use more than 3 times of 7°C water to cool down below 30°C, filter after precipitation, dry and pulverize to obtain a mixed material, and then add Magnesium oxide powder, the magnesium oxide powder accounts for 6% of the mixed material, and the mixture is evenly mixed to obtain a special multi-component fertilizer for rice; the hydroxide is calcium hydroxide and potassium hydroxide.

[0021] In this embodiment, the rice-specific multi-component fertilizer silicon magnesium calcium and trace elemen...

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Abstract

The invention relates to a method for producing a special multi-element fertilizer for rice from kieselguhr, which belongs to the field of fertilizers and aims to solve the problems of low effective silicon content, poor particle disintegrability, low dispersity and poor water solubility of the existing silicon fertilizer. The method comprises the following steps: evenly mixing kieselguhr and hydroxide, enclosing, and performing hydration reaction in a container at a temperature of 100-1000 DEG C and a pressure of 1.0-1.5 kilograms for 48 hours, wherein the hydroxide includes calcium hydroxide and potassium hydroxide; cooling with more than 3 times of 7 DEG C water until the temperature is below 30 DEG C, precipitating, filtering, baking, and crushing to obtain a mixture; adding magnesium oxide power, wherein the magnesium oxide power accounts for 6% of the mixture; and evenly mixing to obtain the special multi-element fertilizer for rice. The invention is applied to rice planting. The content of silicon, magnesium, calcium and minor elements of the special multi-element fertilizer for rice is about 85%; and the porosity is up to 90%.

Description

technical field [0001] The invention belongs to the field of fertilizers. Background technique [0002] Rice is one of the most important food crops in my country. The country's rice planting area accounts for about 30% of the grain crop area, and its output is close to 50% of the total grain output. Silicon is the fourth nutrient element necessary for the growth of rice. The content of SiO2 in the biological yield of rice accounts for 10%-15%. It is the gramineous crop that needs the most silicon. The general biological yield of rice in my country is 15,000 kg / ha, and rice takes away 100-150 kg of silicon from the soil every year. Silicon is a beneficial element for rice growth. Research and production practices have shown that silicon plays an important role in increasing photosynthesis, enhancing plant strength, improving plant shape, improving resistance to lodging and pests, alleviating heavy metal toxicity, and increasing yield in rice. , the natural weathering of si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
Inventor 刘彦坤李春民刘琪
Owner 黑龙江华泽农牧发展有限公司
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