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Special fertilizer for saline-alkali land improvement prepared by flue gas desulfurization gypsum modification and preparation method thereof

A technology for desulfurized gypsum and saline-alkali land, which is applied in the field of soil improver, chemical fertilizer and its preparation. It can solve the problems of unscientific selection and matching of organic and inorganic materials, difficulty in applying powdered desulfurized gypsum, etc., and achieve the effect of convenient transportation, mechanized application and granulation Significant, binding-enhancing effect

Active Publication Date: 2017-10-31
INST OF AGRI ENVIRONMENT & RESOURCE SHANXI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of difficult application of powdery desulfurized gypsum and unscientific selection and matching of organic and inorganic materials in saline-alkali land improvement, the present invention provides a multifunctional saline-alkali land improvement special fertilizer suitable for the preparation of modified desulfurized gypsum in inland saline-alkali land in my country

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A special fertilizer for saline-alkali land improvement prepared by modifying flue gas desulfurization gypsum, comprising the following components in parts by weight:

[0030] 50 parts of flue gas desulfurization gypsum, 2 parts of citric acid, 1 part of magnesium sulfate, 2 parts of aluminum sulfate, 3 parts of ferrous sulfate, 15 parts of weathered coal, 15 parts of cow dung, 2 parts of urea, 2.5 parts of ammonium sulfate, 1.5 parts of potassium sulfate 2 parts, 2 parts of monoammonium phosphate, 0.25 parts of zinc sulfate, 0.25 parts of manganese sulfate, 5 parts of bentonite.

[0031] Get 1 part in the present embodiment and be 10kg, namely desulfurization gypsum is 500kg, citric acid 20kg, magnesium sulfate 10kg, aluminum sulfate 20kg, ferrous sulfate 30kg, weathered coal 150kg, cow dung 150kg, urea 20kg, ammonium sulfate 25Kg, potassium sulfate 15kg, 20kg of monoammonium phosphate, 2.5kg of zinc sulfate, 2.5kg of manganese sulfate, 50kg of bentonite.

[0032] The...

Embodiment 2

[0055] A special fertilizer for saline-alkali land improvement prepared by modifying flue gas desulfurization gypsum, comprising the following components in parts by weight:

[0056] 60 parts of flue gas desulfurization gypsum, 2.5 parts of citric acid, 1.2 parts of magnesium sulfate, 3 parts of aluminum sulfate, 5 parts of ferrous sulfate, 10 parts of weathered coal, 10 parts of chicken manure, 1 part of urea, 1 part of ammonium sulfate, 2 parts of potassium sulfate 2.5 parts of monoammonium phosphate, 0.15 parts of zinc sulfate, 0.3 parts of manganese sulfate, and 7 parts of bentonite.

[0057] Get 1 part in the present embodiment and be 1kg, namely desulfurization gypsum is 60kg, citric acid 2.5kg, magnesium sulfate 1.2kg, aluminum sulfate 3kg, ferrous sulfate 5kg, weathered coal 10kg, chicken manure 10kg, urea 1kg, ammonium sulfate 1Kg, Potassium sulfate 2kg, monoammonium phosphate 2.5kg, zinc sulfate 0.15kg, manganese sulfate 0.3kg, bentonite 7kg.

[0058] The preparatio...

Embodiment 3

[0082] A special fertilizer for saline-alkali land improvement prepared by modifying flue gas desulfurization gypsum, comprising the following components in parts by weight:

[0083] 40 parts of flue gas desulfurization gypsum, 3 parts of citric acid, 1.5 parts of magnesium sulfate, 4 parts of aluminum sulfate, 2 parts of ferrous sulfate, 30 parts of weathered coal, 15 parts of chicken manure, 4 parts of urea, 2 parts of ammonium sulfate, 1 part of potassium sulfate 1.5 parts of monoammonium phosphate, 0.1 part of zinc sulfate, 0.4 parts of manganese sulfate, and 3 parts of bentonite.

[0084] Get 1 part in the present embodiment and be 10kg, namely desulfurization gypsum is 400kg, citric acid 30kg, magnesium sulfate 15kg, aluminum sulfate 40kg, ferrous sulfate 20kg, weathered coal 300kg, chicken manure 150kg, urea 40kg, ammonium sulfate 20Kg, potassium sulfate 10kg, 15kg of monoammonium phosphate, 1kg of zinc sulfate, 4kg of manganese sulfate, 30kg of bentonite.

[0085] The...

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Abstract

The invention discloses a special saline-alkali-soil improvement fertilizer prepared by modification with flue gas desulfurization gypsum and a preparation method thereof. The special improvement fertilizer comprises the following components in parts by weight: 40-80 parts of flue gas desulfurization gypsum, 1-3 parts of citric acid, 0.5-1.5 parts of magnesium sulfate, 1-5 parts of aluminum sulfate, 1-5 parts of ferrous sulfate, 10-30 parts of weathered coal, 10-20 parts of cattle manure or chicken manure, 1-5 parts of urea, 0.5-2.5 parts of ammonium sulfate, 1-3 parts of potassium sulfate, 1-3 parts of monoammonium phosphate, 0.1-0.5 part of zinc sulfate, 0.1-0.5 part of manganese sulfate and 3-10 parts of bentonite. The fertilizer is reasonable in design, provides an effective solution for inland saline-alkali soil of China, and has higher practical value and wide market prospects.

Description

technical field [0001] The invention relates to a soil improver, a chemical fertilizer and a preparation method thereof, in particular to a special fertilizer prepared by modification of flue gas desulfurization gypsum which is suitable for the improvement and nutrition of inland saline-alkali land in my country and the preparation method thereof. Background technique [0002] There are approximately 87.446 million hectares of low- and medium-yielding fields in my country. Saline-alkali land is the most extensive and potential farmland among low- and medium-yielding fields. The area of ​​saline-alkali cultivated land reaches 6 million hectares, of which the inland saline-alkali land area is the largest, including the northwest, northeast and the middle and upper reaches of the Yellow River. , accounting for about 69% of the country. Improving saline-alkali land is of great significance to ensuring food security. [0003] At present, the commonly used technical measures for i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/04C05G3/80
CPCC05B7/00C05C3/00C05C9/00C05D1/02C05D3/00C05D5/00C05D9/00C05D9/02C05F3/00C05F11/02C05G3/80
Inventor 杨治平张强郭军玲李磊王斌王永亮郭彩霞冯悦晨聂督黄高鉴孙捷
Owner INST OF AGRI ENVIRONMENT & RESOURCE SHANXI ACAD OF AGRI SCI
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