Preparation method and application of fertilizer capable of preventing facility soil salinization

A salinization and soil technology, applied in the direction of application, fertilization device, fertilizer mixture, etc., can solve the problems of increasing fertilizer production cost, wasting energy, etc., and achieve the effect of reducing quantity, simple process and good growth

Active Publication Date: 2013-10-02
菏泽金正大生态工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

About 10% of the particle size of high-tower urea-sulfur-based compound fertilizers does not meet the product standards during the pro

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0013] A preparation method of fertilizer for preventing the soil salinization in facilities, including the following steps:

[0014] (1) The production of high-tower urea-sulfur-based compound fertilizer includes heating and melting the compound fertilizer raw materials and filling materials. The molten slurry is sprayed from the top of the high-tower tower through the pelletizing nozzle into the prilling tower, and the bottom of the tower enters the air , The slurry is cooled and granulated during the process of falling from the top of the tower to the bottom of the tower to complete the granulation;

[0015] Wherein, the compound fertilizer raw materials are composed of urea, monoammonium phosphate, potassium sulfate, and trace element fertilizers, and the mass ratio of urea: monoammonium phosphate: potassium sulfate: trace element fertilizer=1:0.13~0.25:0.4~0.7:0.008~0.02 ;

[0016] (2) Sieving the granulated material, the particle size meets the standard of 1~4.75mm as high-tow...

specific Embodiment approach

[0036] The present invention will be further described below in conjunction with embodiments, but it is not limited thereto.

[0037] The raw materials used in the examples are all parts by mass, and all percentages are percentages by mass. Among them, urea, diammonium phosphate, monoammonium phosphate, potassium sulfate, zinc sulfate, boric acid, potassium fulvic acid, bentonite, and zeolite powder are all commercially available products. Among them, potassium fulvic acid is produced by Liaocheng Tianyu Materials Co., Ltd. Nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP), content 97.00%, produced by J&K Chemical Co., Ltd., USA.

Embodiment 1

[0039] The preparation method of fertilizer to prevent soil salinization in facilities is as follows:

[0040] (1) Take 55 kilograms of urea, 10 kilograms of monoammonium phosphate, 30 kilograms of potassium sulfate, 1 kilogram of zinc sulfate, and 4 kilograms of bentonite; produce high-tower urea-sulfur-based compound fertilizers according to the existing technology, including urea, monoammonium phosphate, Potassium sulfate, trace element fertilizers and fillers are respectively measured, mixed and transported to the heater on the top of the tall tower through a lifting device; melted into a slurry at 100~140℃; the molten slurry is passed through the top of the granulation tower After the granulation nozzle sprays out, it enters the granulation tower, and the bottom of the tower enters the air. When the slurry descends from the top of the tower, it slowly descends under the action of the rising airflow resistance, and is cooled by the high tower to form granules and fall to the b...

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PUM

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Abstract

The invention relates to a preparation method and application of a fertilizer capable of preventing facility soil salinization. The method comprises the following steps: (1) producing a high-tower urine sulfur-based compound fertilizer according to the prior art; (2) screening the granulated material, wherein the particle size conforms to the standard as a urine sulfur-based compound fertilizer product, and large particles with the particle size of greater than 4.75mm and fine powder of less of 1mm are used as returned raw materials of the fertilizer capable of preventing soil salinization; and (3) mixing the high-tower urine sulfur-based compound fertilizer returned materials obtained in the step (2) and diammonium phosphate, pulverizing, adding potassium fulvate and a nitrification inhibitor, and granulating to obtain the fertilizer capable of preventing facility soil salinization. By combining the production of the high-tower urine sulfur-based compound fertilizer with the preparation of the fertilizer capable of preventing facility soil salinization, the technique is simple, and saves the production cost of the high-tower urine sulfur-based compound fertilizer and the fertilizer capable of preventing facility soil salinization; and the invention reduces the salt content in soil, and is beneficial to favorable growth of crops.

Description

Technical field [0001] The invention relates to a preparation method and application of using high-tower urea-sulfur-based compound fertilizer to produce a fertilizer for preventing the salinization of facility soil and its application, belonging to the technical field of fertilizer production. Background technique [0002] Traditional soil salinization mainly refers to that in arid and semi-arid areas, the soil evaporates strongly due to climatic reasons, causing groundwater to rise along the soil capillary, and the salinity rises accordingly. The water is dissipated into the atmosphere during the evaporation process, and the salinity It stays on the surface of the soil, and when the salt segregants accumulate to a certain extent, soil salinization occurs. The composition of salt segregants in saline soil varies with the composition of groundwater ions, mainly chlorine, sodium, sulfate, calcium, and magnesium. In recent years, in addition to this kind of soil salinization cause...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/08C05G1/06C05G3/80C05G3/90
CPCY02P60/21
Inventor 杨富裕刘庆华高义武徐恒军王仕青
Owner 菏泽金正大生态工程有限公司
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