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Granular acidic or acidified soil conditioner and preparation method thereof

A soil conditioner, granular technology, applied in the field of soil improvement, can solve the problems of strong dispersion, large specificity, inconvenient use, etc., and achieve the effect of reducing acid damage and enhancing lodging resistance

Active Publication Date: 2014-05-14
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the calcium magnesium phosphate fertilizer is powdery, it is inconvenient to use, and it is difficult to granulate because of its high fineness, high specific gravity, and strong dispersibility.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] Example 1: Preparation of Granular Acidic or Acidifying Soil Conditioner of the Invention

[0100] The preparation method steps are as follows:

[0101] A. Preparation of filler

[0102] Mix attapulgite powder with a particle size of 50 mesh, magnesium oxide, calcium oxide, potassium silicate and borax in a weight ratio of 1:0.05:0.05:0.1:0.1.

[0103] B. Preparation of spray

[0104] Sodium glutamate and sucrose are uniformly mixed in a weight ratio of 1:0.5 to form a mixture, and then water is used to prepare the mixture into a mother liquor with a concentration of 30% by weight. When in use, the mother liquor is diluted with water according to its weight ratio of 1:25 to water, and stirred evenly, and the obtained dilution is then heated at a temperature of 80° C. for 0.1 hour, and then added to the dilution by the weight of the dilution Add 0.5% starch, stir evenly to form a spray.

[0105] C. Granulation

[0106] Put 15 parts by weight of the filler obtained i...

Embodiment 2

[0109] Example 2: Preparation of Granular Acidic or Acidifying Soil Conditioner of the Invention

[0110] The preparation method steps are as follows:

[0111] A. Preparation of filler

[0112] Mix attapulgite powder with a particle size of 60 mesh, magnesium oxide, calcium oxide, potassium silicate and borax in a weight ratio of 1:0.1:0.1:0.2:0.2.

[0113] B. Preparation of spray

[0114] Mix zinc glycinate and glucose uniformly at a weight ratio of 1:1 to form a mixture, and then use water to prepare the mixture into a mother liquor with a concentration of 30% by weight. When in use, the mother liquor is diluted with water according to its weight ratio of 1:25 to water, stirred evenly, and the obtained dilution is then heated at a temperature of 100°C for 0.2 hours, and then added to the dilution by the weight of the dilution Add 0.1% starch, stir evenly to form a spray.

[0115] C. Granulation

[0116] 5 parts by weight of the filler obtained in step A, 90 parts by wei...

Embodiment 3

[0119] Example 3: Preparation of Granular Acidic or Acidifying Soil Conditioner of the Invention

[0120] The preparation method steps are as follows:

[0121] A. Preparation of filler

[0122] Mix attapulgite powder with a particle size of 70 mesh, magnesium oxide, calcium oxide, potassium silicate and borax in a weight ratio of 1:0.75:0.75:0.15:0.15.

[0123] B. Preparation of spray

[0124] Potassium aspartate and lactose were uniformly mixed at a weight ratio of 1:0.75 to form a mixture, and then water was used to prepare the mixture into a mother liquor with a concentration of 28% by weight. When in use, the mother liquor is diluted with water according to its weight ratio of 1:30 to water, and stirred evenly, and the obtained dilution is then heated at a temperature of 90°C for 0.4 hours, and then added to the dilution by the weight of the dilution 0.25% starch, stir well to form a spray.

[0125] C. Granulation

[0126] Put 13 parts by weight of the filler obtained...

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Abstract

The invention relates to a granular acidic or acidified soil conditioner and a preparation method thereof. The granular acidic or acidified soil conditioner comprises the following components in parts by weight: 70-90 parts by weight of calcium magnesium phosphate fertilizer, 5-15 parts by weight of humic acid salt and 5-15 parts by weight of filler. The invention further relates to the preparation method of the granular acidic or acidified soil conditioner. The preparation method comprises the steps: preparing the filler, preparing a spray, pelletizing, drying and screening. The granular acidic or acidified soil conditioner is granular, and is convenient to use, and convenient to mechanically apply. The preparation method of the granular acidic or acidified soil conditioner has the advantages of low requirement of production equipment, simple production process, high yield, low cost and environmental friendliness; conventional equipment is adopted without adding special equipment.

Description

【Technical field】 [0001] The invention belongs to the technical field of soil improvement. More particularly, the present invention relates to a granular acidic or acidifying soil conditioner, and to a process for the preparation of said soil conditioner. 【Background technique】 [0002] my country's acidic soil is mainly distributed in the vast tropical and subtropical regions south of the Yangtze River and Yunnan, Guizhou, Sichuan and other places, with an area of ​​about 200 million hectares 2 , mainly concentrated in Hunan, Jiangxi, Fujian, Zhejiang, Guangdong, Guangxi and Hainan. The pH value of most of the soil is less than 5.5, a large part of which is less than 5.0, and even reaches 4.5. Affected by the increase in the area of ​​acid rain and the excessive application of nitrogen fertilizers, the pH of farmland soil in my country has dropped in a large area, and it has dropped by 0.6 to 0.8 units in 30 years. my country's soil acidification not only occurs on the red...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
Inventor 袁亮赵秉强李燕婷李伟林治安温延臣王薇杨相东李娟
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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