After the emergence of seedlings, mainly due to low temperature and rainy weather, the water in the bed is infiltrated, the surface soil of the bed soil is dehydrated, and the emergence of seedlings is affected. You should choose to use a sprayer to spray water at noon on sunny days to maintain moisture and promote emergence.
Burning seedlings and seedlings occur in the middle of the nursery stage with variable temperature, which is a kind of high temperature physiological disaster caused by poor management of seedling stage. Ventilation management should be done on sunny days, especially when the temperature exceeds 20 °C at noon on sunny days, and the film is completely removed when the seedlings are weak.
Flash seedlings are a physiological disease that causes a sudden change in the growth environment of seedlings due to improper ventilation management. After the seedlings are uncovered, the atrophy occurs, and the leaves are rolled up, and the leaves become white and dry. Attention should be paid to timely ventilation, and the tuyere is opened on the leeward side and the air outlet is exchanged.
The dead seedlings are a physiological obstacle caused by poor soil management and unreasonable seedbed structure, which is characterized by small yellow leaves, slow growth, and thin and hard stems. The light should be increased, the seedling water should be filled in time, the soil moisture of the bed soil should be kept 70%~80%, and the foliar fertilizer should be sprayed to increase the seedling growth.
Prevention of seedling disease The disease of pepper seedlings is mainly caused by rickets and blight. Low temperature and high humidity are easy to cause rickets, high temperature and high humidity are prone to blight, and should be promptly sprayed with 70% methyl thiophanate 800 times or 50% mancozeb 500 times.
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