There are many advantages to planting in agricultural greenhouses, and the plants are not subject to seasonal and weather restrictions. However, pests and diseases in greenhouses affect high yields and cannot achieve maximum economic benefits.
After 2 years of planting in greenhouses, various pathogens in the soil continue to accumulate and the soil is contaminated with bacteria. The temperature in the greenhouse is comfortable and the humidity is high. It is suitable for breeding insects and various pathogenic organisms. It is harmful to plants and directly affects economic benefits.
The traditional methods in the field of soil disinfection and sterilization are chemical disinfection and high-temperature disinfection, which not only have high cost, but also have the problem of resistance to pests. The temperature in the greenhouse is high, which is not conducive to the degradation of pesticides and easily causes pesticide residues, lead to plants and soil cause pollution. High temperature disinfection need completely close the greenhouse, and increase temperature in the greenhouse to 70°, and continuous treating for several days so the bacteria are killed. It also needs to be replaced with new soil, what’s more the greenhouse needs to be idle for several months, finally the time and labor costs are higher.
Ozone disinfection in greenhouses to prevent pests and diseases
Ozone is a kind of gas, which has strong oxidizing properties and has a strong killing effect on living cells. Ozone can effectively kill most microorganisms, organic chemical compounds and insects and insects with weak vitality. Eggs, compared with other disinfectants, ozone is produced from air and oxygen, does not pollute the soil and air, is decomposed and converted into water and oxygen, without pollution and side effects, is a green and environmentally friendly disinfection method.
The principle of ozone sterilization: Ozone has strong oxidation performance, can quickly integrate into the cell wall, destroy the internal structure of bacteria, viruses and other microorganisms, oxidize and decompose the enzymes required for glucose inside the bacteria, and kill the bacteria.
Ozone application in greenhouses
1.Sterilization in the shed: Before planting, ozone can be used to completely disinfect and sterilize the shed, prevent various pests, kill the eggs, and ensure that the plants are not afflicted.
2.Killing pests and diseases: ozone is added to the surface and roots of the plant to kill pests, eggs and viruses.
3.Reduce the use of chemical pesticides, detoxify pesticide residues, and reduce costs.
4.Seed disinfection, ozone water can kill the surface of the virus, bacteria and eggs.
5.Purify the air, ozone kills bacteria in the air, eliminates other odors, decomposes and reduces to oxygen, improving air quality.
Post time: Sep-15-2019