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Special biological slow-release compound fertilizer for cotton and production method of compound fertilizer through melt granulation in high prilling tower

A cotton and biological technology, applied in the direction of urea compound fertilizer, application, nitrogen fertilizer, etc., can solve the problem of low nutrient utilization rate, achieve the effect of enhancing Verticillium wilt resistance, comprehensive nutrition, and improving traits

Inactive Publication Date: 2016-11-09
史丹利化肥当阳有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, it is necessary to develop a special slow-release compound fertilizer that conforms to the law of nutrient absorption in the growth cycle of cotton, which can change the soil structure in arid areas, has the ability to retain water and fertilizer, and can prevent premature aging and low nutrient utilization rate caused by lack of nutrients in the later stage of cotton. The special biological slow-release compound fertilizer for cotton is of great significance

Method used

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  • Special biological slow-release compound fertilizer for cotton and production method of compound fertilizer through melt granulation in high prilling tower
  • Special biological slow-release compound fertilizer for cotton and production method of compound fertilizer through melt granulation in high prilling tower
  • Special biological slow-release compound fertilizer for cotton and production method of compound fertilizer through melt granulation in high prilling tower

Examples

Experimental program
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Effect test

Embodiment 1

[0024] 310 parts of urea, 330 parts of potassium chloride, 180 parts of monoammonium phosphate, 120 parts of biological humic acid, 30 parts of heavy superphosphate, and 10 parts of chelated trace elements are sent to the prilling tower equipment after metering. After the 1# mixing tank reactor was chelated at 140°C, a slurry with good fluidity was formed. During the 2# reactor chelation process, 15 parts of nano-carbon and 4.8 parts of sodium borate were added at the 110°C stage, and sprayed into granules through a granulator. After the granules are cooled in a high tower (100°C is reduced to about 45°C), 0.2 parts of polyvinyl alcohol (PVA) is added in the fluidized bed granule coating stage to obtain a special biological slow-release compound fertilizer for cotton.

Embodiment 2

[0026] 310 parts of urea, 330 parts of potassium chloride, 180 parts of monoammonium phosphate, 110 parts of biological humic acid, 30 parts of heavy superphosphate, and 10 parts of chelated trace elements are sent to the prilling tower equipment after metering. After the 1# mixing tank reactor was chelated at 140°C, a slurry with good fluidity was formed. In the 2# reactor chelation process, 25 parts of nano-carbon and 4.8 parts of sodium borate were added at the 110°C stage, and sprayed into granules through a granulator. After the granules are cooled in a high tower (100°C is reduced to about 45°C), 0.2 parts of polyvinyl alcohol (PVA) is added in the fluidized bed granule coating stage to obtain a special biological slow-release compound fertilizer for cotton.

Embodiment 3

[0028] 310 parts of urea, 330 parts of potassium chloride, 180 parts of monoammonium phosphate, 100 parts of biological humic acid, 30 parts of heavy superphosphate, and 10 parts of chelated trace elements are sent to the prilling tower equipment after metering. After the 1# mixing tank reactor is chelated at 140°C, a slurry with good fluidity is formed. During the chelation process of the 2# reactor at 110°C, 35 parts of nano-carbon and 4.8 parts of sodium borate are added, and the granulator is sprayed into granules. After the granules are cooled in a high tower (100°C is reduced to about 45°C), 0.2 parts of polyvinyl alcohol (PVA) is added in the fluidized bed granule coating stage to obtain a special biological slow-release compound fertilizer for cotton.

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Abstract

The invention relates to a special biological slow-release compound fertilizer for cotton and a preparation method thereof. The special biological slow-release compound fertilizer for cotton is prepared from the following raw materials: 280-310 parts of urea, 300-350 parts of potassium chloride, 150-200 parts of monoammonium phosphate, 70-120 parts of biological humic acid, 10-15 parts of chelation medium and trace elements, 30-50 parts of double superphosphate, 4-10 parts of sodium borate, 15-75 parts of nano carbon and 0.2-0.5 part of an auxiliary slow-release agent which is polyvinyl alcohol or urea formaldehyde and is selectively used according to different areas. The invention also relates to a preparation method of the compound fertilizer. The special biological slow-release compound fertilizer for the cotton is complete in nutrients; nitrogen and potassium nutrients have slow-release properties; the compound fertilizer can conform to the nutrient absorption law of the cotton, has effects of promoting and regulating growth of the cotton, and is capable of improving cotton yield and fiber quality and effectively reducing occurrence rates of cotton premature senescence and greensickness; the cotton planting benefit is increased; meanwhile, the utilization rate of the slow-release fertilizer is increased.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a special biological slow-release fertilizer for high tower melt granulated cotton and a production method thereof, belonging to the field of special compound fertilizers. Background technique [0002] As a traditional thermal insulation material, cotton is natural and soft, non-irritating to the skin, natural and environmentally friendly, has no nutritional ingredients, and is not easy to breed bacteria. Cotton is one of the most important crops in the world, with large output and low production cost, which makes the price of cotton products relatively low. Cotton is an important economic crop and textile raw material in China, as well as an important strategic material, which plays an irreplaceable role in the development of China's national economy. my country's cotton planting area has not changed much, basically around 5 million hectares (about 75 million mu), and the cotton outp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B1/04C05G3/00C05G3/80C05G5/12C05G5/37C05B7/00C05C9/00C05D1/02C05D9/02C05F11/02
Inventor 刘强王经明罗毅李森张思杨彭敏黎少霆
Owner 史丹利化肥当阳有限公司
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