Environment-friendly slow-release compound fertilizer and preparation method thereof

A compound fertilizer and compound fertilizer technology, applied in the field of environment-friendly slow-release compound fertilizer and its preparation, can solve the problems of low nutritional value, high price, long release period, etc. sticky effect

Inactive Publication Date: 2019-11-22
NANJING VOCATIONAL UNIV OF IND TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent has defects such as high price, long release period, and low nutritional value

Method used

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  • Environment-friendly slow-release compound fertilizer and preparation method thereof
  • Environment-friendly slow-release compound fertilizer and preparation method thereof
  • Environment-friendly slow-release compound fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An environmentally friendly slow-release compound fertilizer, prepared by the following steps:

[0035] (1), weigh 8 parts of polylactic acid powder, 4.3 parts of polyvinyl alcohol powder, 2.2 parts of Sr-10 emulsifier, 0.02 part of 184 photoinitiator and 3.6 parts of methoxy polyethylene glycol 550 monomethacrylate and add Into the reaction kettle, the stirring speed is 60r / min, the reaction is maintained at a system temperature of 30°C for 20min, the product is illuminated by a 40W LED light for 5s, and 19 parts of polyvinyl alcohol aqueous solution (mass concentration is 0.9%) is added to the reaction kettle, and stirred The speed is 70r / min, the mixing temperature is 50°C for 15min, and the material is freeze-dried at -50°C for 2h. After the product is crushed, add the product, 2.8 parts of Trichoderma and 3.9 parts of earthworm secretion to the mixer, and the mixing speed is 60r / min, the mixing temperature is 30°C and mixed for 20min to obtain the outer covering f...

Embodiment 2

[0041] An environmentally friendly slow-release compound fertilizer, prepared by the following steps:

[0042] (1), weigh 8 parts of polylactic acid powder, 3 parts of polyvinyl alcohol powder, 2 parts of Sr-10 emulsifier, 0.01 part of 184 photoinitiator and 3 parts of methoxy polyethylene glycol 550 monomethacrylate and add Into the reaction kettle, the stirring speed is 60r / min, and the reaction is maintained at the system temperature of 30°C for 20min. The temperature is 50°C and mixed for 15 minutes, and the material is freeze-dried at -50°C for 2 hours. After the product is pulverized, add the product, 1 part of Trichoderma and 2 parts of earthworm secretion to the mixer, the mixing speed is 60r / min, and the mixing temperature is 30 Mix for 20 minutes at ℃ to obtain the outer covering film material;

[0043] (2) Weigh 31 parts of meat and bone meal, 62 parts of water and 5 parts of acetic acid into the hydrothermal reaction kettle, maintain the hydrothermal reaction temp...

Embodiment 3

[0048] An environmentally friendly slow-release compound fertilizer, prepared by the following steps:

[0049] (1), weigh 8 parts of polylactic acid powder, 6 parts of polyvinyl alcohol powder, 5 parts of Sr-10 emulsifier, 0.05 part of 184 photoinitiator and 8 parts of methoxy polyethylene glycol 550 monomethacrylate and add Put into the reaction kettle, the stirring speed is 60r / min, keep the system temperature at 30°C and react for 20min, the product is illuminated by 400W LED light for 2s, add 29 parts of polyvinyl alcohol aqueous solution to the reaction kettle, the stirring speed is 70r / min, mix The temperature was 50°C and mixed for 15 minutes, and the material was freeze-dried at -50°C for 2 hours. After the product was crushed, the product, 7 parts of Trichoderma and 6 parts of earthworm secretions were added to the mixer, the mixing speed was 60r / min, and the mixing temperature was 30 Mix for 20 minutes at ℃ to obtain the outer covering film material;

[0050] (2) We...

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Abstract

The invention relates to an environment-friendly slow-release compound fertilizer. The composition comprises the following raw material components, the composite fertilizer comprises a composite fertilizer, a starch-based film material and an outer coating material, wherein the compound fertilizer is prepared from urea, monopotassium phosphate, hickory nut shell powder, meat and bone meal, peptone, amino acid liquid, tea leaf residue powder and ginkgo leaf powder through a reaction; wherein a starch-based membrane material is prepared by reacting amylose, a meat and bone meal-based adhesive, gelatin and water; the meat and bone meal-based adhesive is prepared from meat and bone meal, water, acetic acid, polyvinyl alcohol and glutinous rice juice through a reaction, and the outer coating material is prepared from polylactic acid powder, polyvinyl alcohol powder, an Sr-10 emulsifier, an 184 photoinitiator, methoxy polyethylene glycol 550 monomethacrylate, a polyvinyl alcohol aqueous solution, trichoderma bacteria and earthworm secreta through a reaction. The fertilizer has excellent slow-release performance.

Description

technical field [0001] The invention relates to an environment-friendly slow-release compound fertilizer and a preparation method thereof, belonging to the technical field of fertilizers. Background technique [0002] With the rapid development of the national economy, people are gradually paying attention to agricultural production processes such as the quality of agricultural products and the amount of chemical fertilizers used, and soil pollution. Due to the long-term use of chemical fertilizers in my country, although it can quickly increase crop yields, excessive use of chemical fertilizers has led to serious soil pollution, crop quality decline, crop yield decline, and large agricultural residues of crop fertilizers. In recent years, with the strengthening of national policies, people's awareness and requirements for compound fertilizers have been continuously improved, and people have put forward various technical requirements for organic fertilizers, such as: total n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/08C05G3/00
CPCC05B7/00C05G3/00
Inventor 于林惠王勇余旺旺栗娟
Owner NANJING VOCATIONAL UNIV OF IND TECH
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