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Acidic soil conditioner being strong in adsorption and containing silicon, calcium and potassium and preparation method thereof

A technology of acidic soil, silicon calcium potassium, applied in soil conditioning materials, chemical instruments and methods, potassium fertilizer, etc., can solve the problems that the pH value of the soil cannot be changed, it cannot be supplemented, and it is inconvenient for farmers to use it

Inactive Publication Date: 2015-03-18
魏振东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this conditioner is that it can neither supplement medium and trace elements nor change the pH value of the soil, so it is not ideal for the improvement of acidic soil.
Single function, inconvenient for farmers to use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: a kind of preparation method of acidic soil conditioner with strong adsorptivity containing silicon-calcium-potassium element; a. take by weighing 155-195 parts of potassium feldspar, 30-50 parts of limestone, 155-215 parts of medical stone, The additive sodium metasilicate is 7%-9% of the total weight of potassium feldspar and limestone. Crush potassium feldspar and limestone with a crusher to a particle size of 10-20 mm, mix them evenly, and grind them with a ball mill until 90% of the material passes through a 100-mesh standard sieve; b. Put the finely ground above-mentioned mixture into a disc granulator In the process, 30% sodium metasilicate solution is used as binder for granulation, and the amount of binder is 7%-9% of the mixture. After granulation, the wet granules enter the dryer for drying, and then use vibration screening Take particles with a particle size of 4-6mm; c. The particles enter the calcining kiln, and are calcined at a temperature ...

Embodiment 2

[0015] Embodiment 2: a kind of preparation method of the acidic soil conditioner with strong adsorptivity containing silicon-calcium-potassium element; a. take by weighing potassium feldspar 155kg, limestone 30kg, medical stone 155kg, auxiliary agent sodium metasilicate is potassium feldspar 7% of the total weight of stone and limestone. Crush potassium feldspar and limestone with a crusher to a particle size of 10-20 mm, mix them evenly, and grind them with a ball mill until 90% of the material passes through a 100-mesh standard sieve; b. Put the finely ground above-mentioned mixture into a disc granulator In the process, use 30% sodium metasilicate solution as a binder for granulation, and the granulated wet granules enter the dryer for drying, and then use vibration screening to take granules with a particle size of 4-6mm; c. The granules enter the calcining kiln , calcined at 1050-1100°C for 0.8 hours, then cooled to room temperature, mixed with 100-mesh medical stone by j...

Embodiment 3

[0016] Embodiment 3: a kind of preparation method of the acidic soil conditioner with strong adsorptivity containing silicon-calcium-potassium element; a. take by weighing potassium feldspar 165kg, limestone 35kg, medical stone 160kg, auxiliary agent sodium metasilicate is potassium feldspar 7.5% of the total weight of stone and limestone. Crush potassium feldspar and limestone with a crusher to a particle size of 10-20 mm, mix them evenly, and grind them with a ball mill until 90% of the material passes through a 100-mesh standard sieve; b. Put the finely ground above-mentioned mixture into a disc granulator In the process, 30% sodium metasilicate solution is used as binder for granulation, and the amount of binder is about 7.5% of the mixture. The granulated wet granules enter the dryer for drying, and then use vibration screening to obtain the particle size. 3-5mm particles; c. The particles enter the calcination kiln and are calcined at 1050-1100°C for 0.9 hours, then cool...

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Abstract

The invention discloses an acidic soil conditioner being strong in adsorption and containing silicon, calcium and potassium. The acidic soil conditioner is prepared from following raw materials: potassium feldspar, limestone, medical stone and an additive, sodium metasilicate. A preparation method comprises following steps: crushing the potassium feldspar and the limestone respectively through a crushing machine and uniformly mixing the potassium feldspar and the limestone and grinding the potassium feldspar and the limestone through a ball miller; (2) placing the fine mixed material in a disk-type pelletizer, and performing granulation with a sodium metasilicate solution being 30% in concentration as a binding agent; (3) drying wet granules after granulation in a drier for being dried and then sieving the dried granules through a vibrating screen; (4) feeding sieved granules to a calcining kiln to calcine the granules, cooling and jaw-breaking the granules, and mixing the granules with the medical stone in 100 meshes; and (5) grinding the mixture through the ball miller to form a fine powder to obtain the acidic soil conditioner being strong in adsorption and containing silicon, calcium and potassium. In the soil conditioner, a mutual effect among the raw materials is achieved, wherein the alkalinity of the limestone can enable pH value of soil to be adjusted and a requirement of different micro-scale elements during different growth periods of crops can be satisfied by the silicon, the calcium and the potassium. The soil conditioner has a long-period slowly-releasing function.

Description

technical field [0001] The invention belongs to the field of agricultural fertilizers, and in particular relates to an acidic soil conditioner with strong adsorption properties containing silicon, calcium and potassium elements. Background technique [0002] The long-term use of chemical fertilizers and the pursuit of maximization of unit land income in agricultural production have determined that the current soil acidification phenomenon in my country is very obvious, especially in the southern rice-producing areas. In order to improve the land and restore the soil, the 12th Five-Year Plan put forward the slogan of building a beautiful China. In this context, soil conditioners have sprung up like mushrooms after rain. At present, most of the conditioners are mainly organic matter, and the purpose of soil improvement is achieved by supplementing organic matter to improve the soil micro-environment. The disadvantage of this conditioner is that it can neither supplement medi...

Claims

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Application Information

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IPC IPC(8): C05G3/04C09K17/12C09K109/00C05G3/80
CPCC05D1/00C05G3/00C05G3/80C05D3/00C05D9/02
Inventor 魏振东
Owner 魏振东
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