Summer greenhouse vegetable high temperature stuffy shed technology

Solar greenhouse vegetables are planted continuously every year, and there are widespread soil-borne diseases, root-knot nematodes, and underground pests in production. This not only seriously affects the normal growth and development of vegetables, but also has become an important factor restricting the increase of vegetable yield and quality. In recent years, our county has fully utilized the facility vegetables for the leisure period, and in the summer of July and August each year during the summer when the external temperatures are relatively high, the “high temperature stuffy shed” method has been adopted to effectively prevent soil-borne diseases, root-knot nematodes and underground pests. The hazards. High-temperature stuffy sheds can not only eliminate soil-borne germs, kill eggs, remove weeds, but also ripen the soil, increase organic matter content, improve soil structure, clean the shed, and achieve multiple effects. It is one of simple, economic and effective pest control methods. The main method is as follows:

First, the main technical points of high temperature stuffy shed

1、Preparation for high temperature

1 Clean the shed and remove the fallen leaves. After the harvest of the upper crop, the pests and diseases shall be removed in time, the field weeds shall be eradicated, and the shed shall be buried or burned. 2 Apply fermented material to improve soil temperature. The high-temperature fermentation materials include corn, wheat straw, etc., and they are chopped into small pieces of 3-5 cm in size and evenly spread in the shed (5-10 cm thick). Per acre can also be spread rotting, drying, sifting 3,000 kilograms of chicken manure, 200 kilograms of lime. Sprinkle the above fermented material evenly, and then perform deep plowing (30 cm soil layer). 3 watering the film to ensure the effect of drapery. After deep-sweeping the soil, the floodwater was flooded and the water surface was 3-5 cm higher than the ground. After the water infiltrated the soil, it was covered with a plastic film and compacted.

2, the specific operation steps of the high-temperature stuffy shed

1 Closed greenhouses, rapid warming. It is necessary to promptly close the vents in the upper part of the shelter and cover the large-scale greenhouse film to prevent rainwater from entering, so as to ensure rapid temperature rise of the greenhouse, so that the surface temperature of 10 centimeters will reach 50 degrees or more, and the 20 centimeters will reach 45 degrees or more. 2 Dirty time should not be short. Padding time can be determined according to the length of the rest period, generally at least 20-30 days of boring shed, the longer the better, in order to achieve the purpose of killing the deep-rooted soil-borne pathogens and underground pest eggs (蛹). 3 cooperate with the aftermath of the boring shed to improve the boring effect. After the boring shack is over, the soil should be ploughed in time, and after drying till cultivating, it is usually 10 to 15 days before drying to plant the crop. 15-20 days before planting, the entire greenhouse must be sterilized with sulphur powder.

Second, the main advantages of high temperature stuffy shed

1. Kill most fungi, bacteria, and some viruses. Such as: vegetable wilt disease, eggplant root rot and so on.

2, can suffocate most of the underground pests. Such as: vegetable root knot nematodes.

3, can kill some weeds.

4. The applied organic fertilizer can be fully decomposed. It not only exerts fertilizer effect, but also avoids raw roots.

5. The prevention and control effect of pests and diseases is obvious, and the control cost is reduced. On the basis of not increasing costs, it played a very good role.

6, is conducive to the decomposition of soil nutrients.

7, can also increase the temperature, help to nurture strong seedlings.

8. It does not cause any pollution to soil and vegetables and is one of the basic measures for the production of pollution-free and green vegetables.

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