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Water-holding controlled-release biological compound fertilizer and preparation method thereof

A compound fertilizer and biological technology, applied in the direction of urea compound fertilizer, organic fertilizer, ammonium salt fertilizer, etc., to achieve the effect of reducing heavy metal content, excellent granulation performance and compressive strength, and improving soil structure

Active Publication Date: 2019-03-01
河北正达生态农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of existing microbial fertilizers, the present invention provides a controlled-release biological compound fertilizer with water retention and slow release, high utilization rate, high activity of microbial strains, low cost and no secondary pollution

Method used

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  • Water-holding controlled-release biological compound fertilizer and preparation method thereof
  • Water-holding controlled-release biological compound fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A water-retaining and controlled-release biological compound fertilizer, which is composed of the following raw materials in parts by weight: 20 parts of biomass charcoal, 0.06 parts of sodium lauryl sulfate, 0.02 parts of polyvinylpyrrolidone, 10 parts of humic acid powder, and 4 parts of medical stone powder 1 part, 8 parts of urea, 0.05 part of 2-mercaptobenzoic acid, 6 parts of modified starch adhesive, 12 parts of acrylic acid, 0.1 part of benzoin dimethyl ether, 1 part of ammonium persulfate, 7 parts of fermented organic fertilizer, 1 part of microbial powder share.

[0027] Further, the biochar is prepared by high-temperature cracking of corn stalks at 450° C. under anoxic conditions, and the particle size is 1.0-2.0 mm.

[0028] Further, the fermented organic fertilizer uses pig manure as a raw material, corn stalks as a conditioning agent, adjusts the water content, adds biochar, mixes uniformly, prepares by aeration and oxygen supply fermentation, and pulveriz...

Embodiment 2

[0036] A water-retaining and controlled-release biological compound fertilizer, which is composed of the following raw materials in parts by weight: 25 parts of biomass charcoal, 0.07 parts of sodium lauryl sulfate, 0.03 parts of polyvinylpyrrolidone, 15 parts of humic acid powder, and 6 parts of medical stone powder 11 parts of urea, 0.1 part of 2-mercaptobenzoic acid, 9 parts of modified starch adhesive, 18 parts of acrylic acid, 0.2 parts of benzoin dimethyl ether, 2 parts of ammonium persulfate, 9 parts of fermented organic fertilizer, 4 parts of microbial powder share.

[0037] Further, the biochar is prepared by high-temperature cracking of corn stalks at 450° C. under anoxic conditions, and the particle size is 1.0-2.0 mm.

[0038] Further, the fermented organic fertilizer uses pig manure as a raw material, corn stalks as a conditioning agent, adjusts the water content, adds biochar, mixes uniformly, prepares by aeration and oxygen supply fermentation, and pulverizes af...

Embodiment 3

[0046] A water-retaining and controlled-release biological compound fertilizer, which is composed of the following raw materials in parts by weight: 35 parts of biomass charcoal, 0.08 parts of sodium lauryl sulfate, 0.05 parts of polyvinylpyrrolidone, 18 parts of humic acid powder, and 9 parts of medical stone powder 15 parts of urea, 0.2 parts of 2-mercaptobenzoic acid, 13 parts of modified starch adhesive, 22 parts of acrylic acid, 0.3 parts of benzoin dimethyl ether, 3 parts of ammonium persulfate, 16 parts of fermented organic fertilizer, 5 parts of microbial powder share.

[0047] Further, the biochar is prepared by high-temperature cracking of corn stalks at 450° C. under anoxic conditions, and the particle size is 1.0-2.0 mm.

[0048] Further, the fermented organic fertilizer uses pig manure as a raw material, corn stalks as a conditioning agent, adjusts the water content, adds biochar, mixes uniformly, prepares by aeration and oxygen supply fermentation, and pulverizes...

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Abstract

The invention discloses water-holding controlled-release biological compound fertilizer. The water-holding controlled-release biological compound fertilizer comprises, by weight, 20-35 parts of biomass charcoal, 0.06-0.08 part of sodium dodecyl sulfate, 0.02-0.05 part of polyvinylpyrrolidone, 10-18 parts of humic acid powder, 4-9 parts of medical stone powder, 8-15 parts of urea, 0.05-0.2 part of2-mercaptobenzoic acid, 6-13 parts of modified starch adhesives, 12-22 parts of acrylic acid, 0.1-0.3 part of benzoin dimethyl ether, 1-3 parts of ammonium persulfate, 7-16 parts of fermented organicfertilizer and 1-5 parts of microbial powder. The invention also provides a preparation method of the water-holding controlled-release biological compound fertilizer. The biological compound fertilizer has the advantages that the biological compound fertilizer has excellent water absorption and retention effect, multiple controlled release of the fertilizer effect can be realized, nutrients suitable for different nutrition requirements of different growth stages of the crops can be provided, the fertilizer utilization rate can be increased, sufficient supply of the nutrients and water for thewhole growth period can be guaranteed, and the yield is obviously increased.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a water-retaining and controlled-release biological compound fertilizer and a preparation method thereof. Background technique [0002] my country is a country with a large agricultural development, and it is also the largest producer and user of chemical fertilizers in the world. The annual amount of chemical fertilizer application accounts for 35% of the world's total, but the utilization rate of chemical fertilizers is far lower than that of developed countries. Among them, the utilization rate of nitrogen fertilizer is 30% to 50%. The seasonal utilization rate of phosphate fertilizer is 8% to 20%, and the utilization rate of potassium fertilizer is about 50%. It is of great significance to improve the utilization rate of fertilizer and reduce its pollution to the environment. The development of slow and controlled release fertilizers is an important way to solve this prob...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05C3/00C05G3/00C05G3/80C05G5/12C05G5/30C05C9/00C05D9/00C05F3/00C05F11/00C05F11/02C05F11/08
Inventor 韩亚博
Owner 河北正达生态农业科技有限公司
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