Technical points of summer high temperature stifling shed

Many vegetable farmers, due to soil-borne diseases caused serious production cuts, and some of them have no harvest! Because we want to obtain the greatest benefits from the soil, so the development of soil, a large number of chemical fertilizers, so that the beneficial bacteria in the soil is reduced, soil compaction, vegetable greenhouse soil is a hotbed of various pathogens, is the source of all diseases of vegetable survival!

Greenhouse continuous planting for 5 years, soil bacteria tens of millions, with the continuous improvement of greenhouse vegetable multiple planting index, soilborne diseases are gradually serious, become a problem restricting the safe development of vegetable production.

The high-temperature stuffy shed refers to the high-temperature high-temperature rest period in the summer, after the shed is completely closed, with the strong light of the sun in the summer, the temperature in the shed naturally rises rapidly to more than 50-70 degrees, and maintains a certain length of time, so that the walls, scaffolds, columns, soil, etc. inside the shed can be pasteurized with the help of high temperature. In the commonly used methods, there are mainly two methods of dry and wet boredom, but many greenhouses also often use the combination of dry and wet boredom high temperature stuffy shed method.

The advantages of hot and stuffy booths.

(1) It is conducive to killing germs and insect sources.

(2) It is conducive to improving the efficiency of organic fertilizer. In order to improve the level of harmless and standardized cultivation, the majority of farmers have increased the use of organic manure such as chicken manure and cow and horse manure, and through the high-temperature stuffy shed, it can be conducive to the post-decomposition of organic fertilizer.

(3) It is beneficial to improve the efficacy and no residue. By applying appropriate low-toxicity and low-residue, fast photlysis and volatile pesticides in idle sheds, the dosage can be increased, the efficacy can be improved, and the effect of high temperature and strong light can be fully played, the residual period of pesticides can be shortened, and the effect of harmfulness and no residue on crops can be achieved.

(4) It is conducive to soil cultivation and fertilizer. Combined with increasing the use of organic fertilizer and straw, and scientifically applying a certain amount of fermentation fertilizer can greatly improve the soil structure, enrich the aggregate structure, reduce compaction, reduce and delay the degree of salinization.

Attention of high temperature stuffy shed.

(1) In front of the cabin

When turning the ground to apply fertilizer, be sure not to apply biological bacterial fertilizer together into the vegetable greenhouse. If the biological fertilizer is applied before the stuffy shed, then the biological bacteria in the bacterial fertilizer will inevitably be killed by the scorching temperature in the process of the high-temperature stuffy shed, and the biological bacterial fertilizer will not play the role it should play.

(2) Under normal circumstances, the greenhouse film is changed once a year, vegetable farmers can pull out the garden in spring, timely deep shed, enough chicken manure, the use of old film high temperature stuffy shed, although the temperature is slow, need to extend the stuffy shed time, but even if the stuffy shed time is a little longer, because the old shed film has been to the time to change, after the stuffy shed can be replaced with a new film.

(3) Vegetable greenhouse greenhouse where root-knot nematode disease is serious in the greenhouse, plants should be transported out of the greenhouse before the high temperature stifling shed.

(4) It is obviously incorrect that many vegetable farmers apply all the fertilizers in the bottom fertilizer into the greenhouse project greenhouses, including biocervical fertilizers. Some vegetable farmers even after applying enough basic fertilizer containing biological bacterial fertilizer, not only high temperature stuffy shed but also cooperate with bromomethane fumigation, this practice is more not worth advocating.

(5) With the new film, although the temperature is fast, the film is also seriously damaged, so the stuffy time should be controlled. Generally, after dry boredom, put on a new film, and wet boredom can be 15 days. For some old sheds, the stuffy shed time can be slightly longer, but try not to exceed 20 days.