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Ammonium phosphate sulfate slow release fertilizer for improving soil structure of saline-alkali soil and preparation method of ammonium phosphate sulfate slow release fertilizer

A soil structure and ammonium phosphate technology, which is applied in ammonium orthophosphate fertilizer, phosphate fertilizer, alkaline orthophosphate fertilizer, etc., can solve the problems of low organic matter content in saline-alkali soil, difficult for crops to promote seedlings, poor physical and chemical properties, etc. The effect of soil compaction, avoidance of nutrient waste, and increased utilization

Inactive Publication Date: 2018-09-07
GUIYANG KAILIN FERTILIZER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Saline soil mainly refers to salinized soil with high chloride or sulfate content, the soil is alkaline, but the pH value is not necessarily high; alkaline soil refers to the soil containing carbonate or heavy phosphate, the pH value is high, the soil It is alkaline, the content of organic matter in saline-alkali soil is low, the soil fertility is low, the physical and chemical properties are poor, there are many anions and cations harmful to crops, and it is difficult for crops to promote seedlings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment provides an ammonium sulfophosphate slow-release fertilizer for improving the soil structure of saline-alkali soils, and the liquid elemental sulfur is uniformly distributed in diammonium phosphate with a neutralization degree of 1.4, so that the sulfur content is 13%;

[0025] At the same time, this embodiment provides a preparation method of ammonium sulfophosphate slow-release fertilizer for improving the soil structure of saline-alkali soil, including the steps:

[0026] 1) Mix sulfur powder with surfactant A to obtain modified sulfur powder. The amount of surfactant A is 4% of sulfur powder;

[0027] 2) After mixing the modified sulfur powder and diatomaceous earth, use steam to heat the sulfur powder into a liquid state to obtain a mixed slurry;

[0028] 3) Mix phosphoric acid with surfactant B to obtain modified phosphoric acid. The amount of surfactant B is 4% of phosphoric acid;

[0029] 4) Add the mixed slurry to the modified phosphoric acid, pump it int...

Embodiment 2

[0035] This embodiment provides an ammonium sulfophosphate slow-release fertilizer for improving the soil structure of saline-alkali soils, which evenly distributes liquid elemental sulfur in diammonium phosphate with a neutralization degree of 1.3, so that its sulfur content is 8%;

[0036] At the same time, this embodiment provides a preparation method of ammonium sulfophosphate slow-release fertilizer for improving the soil structure of saline-alkali soil, including the steps:

[0037] 1) Mix sulfur powder and surfactant A to obtain modified sulfur powder. The amount of surfactant A is sulfur powder amount 1;

[0038] 2) After mixing the modified sulfur powder and diatomaceous earth, use steam to heat the sulfur powder into a liquid state to obtain a mixed slurry;

[0039] 3) Mix phosphoric acid with surfactant B to obtain modified phosphoric acid. The amount of surfactant B is phosphoric acid amount 1;

[0040] 4) Add the mixed slurry to the modified phosphoric acid, pump it into th...

Embodiment 3

[0046] This embodiment provides an ammonium sulfophosphate slow-release fertilizer for improving the soil structure of saline-alkali soils, and the liquid elemental sulfur is evenly distributed in the diammonium phosphate with a neutralization degree of 1.3, so that the sulfur content is 10%;

[0047] At the same time, this embodiment provides a preparation method of ammonium sulfophosphate slow-release fertilizer for improving the soil structure of saline-alkali soil, including the steps:

[0048] 1) Mix sulfur powder with surfactant A to obtain modified sulfur powder. The amount of surfactant A is 2% of the amount of sulfur powder;

[0049] 2) After mixing the modified sulfur powder and diatomaceous earth, use steam to heat the sulfur powder into a liquid state to obtain a mixed slurry;

[0050] 3) Mix phosphoric acid with surfactant B to obtain modified phosphoric acid. The amount of surfactant B is 3% of phosphoric acid;

[0051] 4) Add the mixed slurry to the modified phosphoric ac...

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Abstract

The invention relates to the technical fields of fertilizers and processing techniques of the fertilizers and particularly relates to an ammonium phosphate sulfate slow release fertilizer for improving the soil structure of saline-alkali soil and a preparation method of the ammonium phosphate sulfate slow release fertilizer. According to the preparation method, liquid-state elemental sulfur is uniformly distributed into diammonium phosphate with a neutralization degree of 1.3-1.4 until the sulfur content of diammonium phosphate is 8%-13%, so that the pH value and EC value of soil are decreased, the secondary salinization of soil is prevented, and the phosphorus availability of soil is improved; the fertilizer is prepared by virtue of diatomite, so that the utilization rate of air nitrogenis increased; the sustained release of an ammonium phosphate finished product is realized, so that the utilization rates of nitrogen and phosphorus are increased; and meanwhile, the diatomite has adsorbability and is capable of adsorbing soil microorganisms and can be decomposed under the effect of the microorganisms, so that effective elements can be released.

Description

Technical field [0001] The invention relates to the technical field of fertilizer and its processing, in particular to an ammonium sulfophosphate slow-release fertilizer for improving the soil structure of saline-alkali soil and a preparation method thereof. Background technique [0002] Saline-alkaline soil is the general term for saline soil and alkaline soil. Saline soil mainly refers to the saline soil with high chloride or sulfate content. The soil is alkaline, but the pH value is not necessarily high; alkaline soil refers to the soil containing carbonate or heavy phosphate, with a high pH value. It is alkaline, the content of organic matter in saline-alkali soil is low, the soil fertility is low, the physical and chemical properties are poor, and there are many anions and cations harmful to crops, and crops are not easy to promote seedlings. [0003] Soil salinization is one of the world's problems facing people at present, and the management, development and utilization of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B7/00C05G3/00C05G3/80C05D9/00
Inventor 吴有丽项双龙徐立钦罗付浪廖吉星何润林唐丽君韩朝应何花王采艳
Owner GUIYANG KAILIN FERTILIZER CO LTD
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