First, the soil disinfection before planting greenhouse vegetables in the shed before 20 days of colonization soil disinfection, killing the remaining pathogenic bacteria in the soil. Loosen the soil 3-5 days before planting to evaporate excessive harmful gases and prevent phytotoxicity.
Second, the scaffolding wall sterilizes the scaffolding and the wall before the shed is meticulously disinfected to kill germs.
III. Disinfection in the shed before planting After the shed is shed, 1 kg of sulphur powder and 2-3 kg of sawn wood are used per 667 m2 of shed, and the mixture is evenly mixed. At 7 o'clock in the evening, fuming tobacco is sterilized for a day and night to kill the shed. The surface of the bacteria. When smoking smoke, it should be noted that the temperature in the shed should be maintained at about 20°C. At the same time, there should be no green plants in the shed so as to avoid phytotoxicity.
IV. Cultivating disease-free and strong seedlings Cultivating disease-free and strong seedlings is a key measure before greenhouse vegetable is planted. It is necessary to achieve strong seedling transplanting and improve disease resistance.
In the production, the measures to cultivate disease-free and strong seedlings are as follows:
1, seed bed disinfection. Prevent diseases such as damping-off, blight, anthracnose, and diseases in vegetable seedlings.
2, strengthen seedbed management. One must set seedlings in a timely manner to prevent sprouting of seedlings and seedlings, yellow seedlings, reduce disease resistance. Second, timely control seedbed temperature, humidity, beware of burning seedlings. Third, we must strengthen water and fertilizer management and cultivate disease-free and strong seedlings.
3, seedling disease prevention and treatment. The occurrence of damping-off, damping-off, and root rot in the seedling stage, diseases such as melons, eggplants, and peppers, such as downy mildew, anthrax, and diseases at the seedling stage, should be promptly controlled.
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