Nutrient sustained-release acid soil conditioner and preparation method thereof

An acid soil, slow-release technology, applied in the direction of ammonium orthophosphate fertilizer, alkaline orthophosphate fertilizer, application, etc., can solve the problem of easy loss of nutrients, improve fertilizer utilization efficiency, reduce application amount, increase humic acid The effect of content

Inactive Publication Date: 2017-10-03
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the problem of large-scale acidic soil in the south, many acidic soil conditioners are mainly aimed at improving the pH of the soil. Although the effect of improving acidity is relatively obvious, for the characteristics of high temperature and rain in the south, and easy loss of nutrients, the conditioner with neutralizing effect and Not very suitable for the regional characteristics of the southern region

Method used

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  • Nutrient sustained-release acid soil conditioner and preparation method thereof
  • Nutrient sustained-release acid soil conditioner and preparation method thereof
  • Nutrient sustained-release acid soil conditioner and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A nutrient slow-release acidic soil conditioner, characterized in that it consists of the following parts by weight: 25 parts of phosphorus tailings, 29 parts of dolomite, 20 parts of quicklime, 17 parts of phosphate fertilizer, 5 parts of bentonite, and potassium humate 5 servings.

[0018] The preparation method of the above-mentioned nutrient slow-release acidic soil conditioner is carried out according to the following steps:

[0019] (1) According to the parts by weight, take 25 parts of phosphorus tailings, 29 parts of dolomite, 20 parts of quicklime, 17 parts of phosphate fertilizer, 5 parts of bentonite, and 5 parts of potassium humate; , sieved and reserved for later use; the particle size of the processed raw material is <1.2mm;

[0020] (2) After quicklime and dolomite are mixed, stir evenly;

[0021] (3) Add phosphorus tailings, phosphate fertilizer, bentonite, and stir evenly;

[0022] (4) Add potassium humate, stir evenly, pile up for 2 weeks, and make....

Embodiment 2

[0034] A nutrient slow-release acidic soil conditioner, characterized in that it consists of the following parts by weight: 25 parts of phosphorus tailings, 30 parts of medical stone, 29 parts of dolomite, 20 parts of quicklime, 17 parts of phosphate fertilizer, bentonite 5 parts, 5 parts potassium humate.

[0035] The preparation method of the above-mentioned nutrient slow-release acidic soil conditioner is carried out according to the following steps:

[0036] (1) according to parts by weight, get respectively 25 parts of phosphorus tailings, 30 parts of medical stone, 29 parts of dolomite, 20 parts of quicklime, 17 parts of phosphate fertilizer, 5 parts of bentonite, 5 parts of potassium humate; Raw materials are pulverized, Finely ground, then air-dried and sieved for later use; the particle size of the processed raw materials is <1.2mm;

[0037] (2) After quicklime and dolomite are mixed, stir evenly;

[0038] (3) Add phosphorus tailings, phosphate fertilizer, bentonite...

Embodiment 3

[0045] A nutrient slow-release acidic soil conditioner, characterized in that it consists of the following parts by weight: 25 parts of phosphorus tailings, 30 parts of pumice, 29 parts of dolomite, 20 parts of quicklime, 17 parts of phosphate fertilizer, and 5 parts of bentonite , 5 parts of potassium humate.

[0046] The preparation method of the above-mentioned nutrient slow-release acidic soil conditioner is carried out according to the following steps:

[0047](1) According to parts by weight, get 25 parts of phosphorus tailings, 30 parts of pumice, 29 parts of dolomite, 20 parts of quicklime, 17 parts of phosphate fertilizer, 5 parts of bentonite, and 5 parts of potassium humate; , and then air-dried and sieved for later use; the particle size of the processed raw materials is <1.2mm;

[0048] (2) After quicklime and dolomite are mixed, stir evenly;

[0049] (3) Add phosphorus tailings, phosphate fertilizer, bentonite, and stir evenly;

[0050] (4) Add potassium humat...

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Abstract

The invention discloses a nutrient sustained-release acid soil conditioner. The nutrient sustained-release acid soil conditioner is prepared from the following substances in parts by weight: 20 to 30 parts of phosphate tailings, 28 to 31 parts of dolomite, 18 to 25 parts of quick lime, 15 to 20 parts of phosphatic fertilizer, 4 to 6 parts of bentonite and 0 to 10 parts of potassium humate. The nutrient sustained-release acid soil conditioner is suitable for acid soil areas in the south, which are large in rainfall amount and large in leaching amount, and supplements part of nutrients. Meanwhile, the aluminum toxicity risk can be reduced, and nutrient elements such as calcium, magnesium and the like are provided.

Description

technical field [0001] The invention belongs to the technical field of agricultural soil conditioners, and in particular relates to a nutrient slow-release acidic soil conditioner and a preparation method thereof. Background technique [0002] The acidic soil in my country is mainly distributed in the vast tropical and subtropical regions south of the Yangtze River and in Yunnan, Guizhou, Sichuan and other places, with an area of ​​about 2.04×10 8 hectares, the pH value of most of the soil is less than 5.5, a large part of which is less than 5.0, or even 4.5, and the area is still expanding, and the soil acidity is still rising. According to the survey of Mengla County and Menglong Town in Xishuangbanna Prefecture, it is found that soil acidification is common, and some areas are strongly acidic soils. In Wenshan Prefecture, the acidified area is even more common, with an average value of only 5.34, and the proportion of acidic soil in the whole prefecture reaches 85.40%. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/00C05G3/80
CPCC05B5/00C05G3/00C05G3/80C05B7/00C05D3/00C05D3/02C05D9/00C05F11/02
Inventor 陈清
Owner CHINA AGRI UNIV
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