The Sanqiao Village Science and Technology Demonstration Site in Lane Road Township, Gaotai County is a demonstration site for the county's Jingzuo Station for many years. Under the guidance of scientific and technical personnel, this year, after using the head crop to pull it up, it immediately followed by a high temperature. This is a worthy example of the economical and practical bactericidal and insecticidal technology for local farmers. It is worth promoting in the whole county. The author recently learned that more than 30 people were trained in vegetable cultivation. After more than 20 days of boring sheds, the peasants had transplanted peppers and zucchini. They are now growing up.
Farmers with practical experience often make use of the summer greenhouses during the leisure period to suffocate the shed to kill germs and pests in the shed. That is, after the harvest of vegetables, the temperature of the greenhouse is increased by closing the air outlet to let the sunlight heat energy increase the temperature inside the greenhouse. Generally, it can reach above 60° C., ie, it can effectively sterilize the environment of the greenhouse and the surface of the soil (in the shed and in the topsoil). The germs and various pests are a great killer and will not produce resistance. They can also promote the decomposition of manure and have many benefits.
One of the benefits is that it has a good effect in controlling fusarium wilt. The pathogenic bacteria often reproduce in the soil. When the survival is increased, it will cause an outbreak of fusarium wilt. In summer, high-temperature stuffy sheds have a huge amount of damage, and in the 20-deep soil layer behind the sheds, more than 90% of wilt pathogenic Fusarium spp. will be eliminated, so it is difficult to accumulate a large amount in a short period of time. Therefore, in greenhouses where the temperature is very high in the summer, the wilt disease rarely develops or even develops.
The second benefit can effectively prevent oomycete diseases. In particular, Pythium root rot, which is harmful to many vegetables, has a good control effect against phytophthora root rot in eggplant, pepper and tomato.
The third benefit is to reduce the damage of root-knot nematodes. High-temperature stuffy sheds can kill root-knot nematode larvae and eggs in 10-20-deep soil topsoil.
The fourth advantage is to kill the fungal pathogens inside the shed. For example, pathogenic spores and various hyphae and sclerotia attached to the wall of the greenhouse can significantly reduce various diseases.
The fifth advantage is that the high temperature of the sheds kills some of the weeds and weeds in the shed, so that pests such as leaf fleas are significantly suppressed or even no longer occur.
The sixth advantage is that the stuffy shed can further decompose the organic matter in the soil. Therefore, after the stuffy shed is applied with mixed fertilizer, manure, grass fertilizer, etc., after the stuffy shed, the organic matter is further decomposed, which not only exerts a fertilizer effect, but also avoids birth. Fat burning root.
Therefore, even if the production of greenhouses in the summer, it will take some time to get up. The best stuffy shed in the summer is the combination of dry stuffy stuffy and stuffy stuffy stuffy stuff, which is watering for 5-7 days after dry stuffing, stopping for 3-5 days after watering, and then boring for 5-7 days to solve some bacteria producing bacteria after dry stuffy. Nuclei, spores, decidua, etc. resist dry heat. Stop for a few days after watering to make it reactivate or grow. Then it will be easy to kill them.
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