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A kind of slow-release ozone sol, its preparation method and application

A technology of ozone gel and ozone, applied in botany equipment and methods, applications, chemicals for biological control, etc., can solve the problems of high cost of diseases and insect pests, volatile decomposition, unstable ozone, etc., and prolong the sterilization time , reduced dosage, and long-lasting effects

Active Publication Date: 2016-08-17
BEIJING UNIV OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a slow-release ozone sol and its preparation method and application, which can not only overcome the defects of high cost and serious pollution of the traditional application of pesticides to control pests and diseases, but also solve the problem of unstable and easily volatile decomposition of ozone, and effectively eliminate Eliminate plant diseases and insect pests

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Dissolve 0.05g of acetic acid in 1 liter of tap water, then add 0.1g of polyaspartic acid, stir at a speed of 30-50r / min to dissolve and disperse evenly; pass the ozone gas produced by the ozone generator into it, The ozone reaches 5mg / L to form a slow-release ozone sol, in which polyaspartic acid is 0.1g / L and acetic acid is 0.05g / L.

[0016] In addition, the ozone gas produced by the ozone generator is directly passed into 1 liter of tap water to make the ozone reach 5mg / L.

[0017] Place the prepared sustained-release ozone sol and tap water containing ozone at room temperature for 15 minutes, 30 minutes, 2 hours, 6 hours, 12 hours, 20 hours, 24 hours, and 48 hours before measuring the ozone concentration. The tap water is 15 minutes. The ozone concentration after seeding was 2.5 mg / L, the half-life of ozone in tap water was 15 minutes, and the ozone concentration in the sustained-release ozone sol of the present invention was 4.5 mg / L after 2 hours, 4 mg / L after 6 hours,...

Embodiment 2

[0019] Dissolve 0.5 g of citric acid in 1 liter of tap water, add 5 g of polyethylene glycol, and stir at a speed of 30 to 50 r / min to dissolve and disperse evenly; pass the ozone gas produced by the ozone generator into it to make the ozone Reach 30mg / L to form a slow-release ozone sol, in which polyethylene glycol 10g / L and citric acid 0.5g / L.

[0020] In addition, the ozone gas produced by the ozone generator is directly passed into 1 liter of tap water to make the ozone reach 30mg / L.

[0021] Place the prepared sustained-release ozone sol and tap water containing ozone at room temperature for 15 minutes, 30 minutes, 2 hours, 6 hours, 12 hours, 20 hours, 24 hours, and 48 hours before measuring the ozone concentration. The tap water is 15 minutes. The ozone concentration after seeding was 12.5 mg / L, and the half-life of ozone in it was less than 15 minutes, while the ozone concentration in the sustained-release ozone sol of the present invention was 25.5 mg / L after 2 hours and 22...

Embodiment 3

[0023] Dissolve 0.5 g of lactic acid in 1 liter of tap water, then add 0.5 g of sodium alginate, stir at a rotation speed of 30 to 50 r / min to dissolve and disperse evenly; pass the ozone gas generated by the ozone generator into it to make the ozone reach 10mg / L to form a sustained-release ozone sol, including sodium alginate 0.5g / L and lactic acid 0.5g / L.

[0024] In addition, the ozone gas produced by the ozone generator is directly passed into 1 liter of tap water to make the ozone reach 10mg / L.

[0025] Place the above-prepared sustained-release ozone sol and tap water containing ozone at room temperature for 15 minutes, 30 minutes, 2 hours, 6 hours, 12 hours, 24 hours, 36 hours, and 48 hours before measuring the ozone concentration. The tap water is 15 minutes. The ozone concentration after seeding was 4.8 mg / L, the half-life of ozone in tap water was close to 15 minutes, and the ozone concentration in the sustained-release ozone sol of the present invention was 8.6 mg / L afte...

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PUM

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Abstract

The invention provides a slow-release ozone sol, the concentration of each component is: ozone 0.5-30mg / L, sol 0.1-10g / L, stabilizer 0.01-1g / L. The slow-release ozone sol of the present invention can increase the half-life of ozone in tap water by more than 60 times and slowly release ozone. It can not only prevent and control soil-borne diseases of crops safely and efficiently without residue, but also effectively Prevent gaseous ozone from corroding the metal framework of facility agricultural greenhouses. The preparation method of the invention is simple and easy to operate.

Description

Technical field [0001] The invention relates to a slow-release ozone sol and a preparation method thereof, and the slow-release ozone sol is applied to the prevention and control of crop diseases, especially the prevention and control of soil-borne diseases. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for food safety, and the issue of pesticide residues has attracted increasing attention. Avoiding pesticides to solve pests and diseases has become a problem in modern agriculture. [0003] Due to the extensive use of pesticides and other chemical inputs and the continuous cropping of crops for many years, soil-borne diseases are very serious in many parts of our country, and this problem is particularly prominent in agricultural protection areas such as greenhouses and greenhouses. Long-term use of chemical pesticides will not only cause hidden food safety hazards, but also cause pathogenic bacteria to mutate and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/00A01N25/22A01N25/04A01P1/00A01P3/00
Inventor 易欣欣张鹏陈毅明杜相革刘一倩高秀芝
Owner BEIJING UNIV OF AGRI
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