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How to manage strawberry in winter and spring greenhouse
At present, what management tasks should greenhouse strawberry do? First, continue to do antifreeze work for strawberries. (1) Using double membrane insulation for freeze protection. In the shed, additional endometrium can be used. The old membrane used in the previous year can be used. When the temperature drops below 0°C, double insulation measures must be adopted. (2) Place the stove to warm up. When the temperature drops to -3°C, stoves can be placed in the greenhouse for heating. The number of stoves is determined by the area of ​​the greenhouse. The temperature in the shed is above 0°C. However, attention must be paid to safety. When warming, people must leave. In the greenhouse, the shelter should be opened in time in the next day. (3) Suitable irrigation in the shed. When strong cold air comes, appropriate irrigation can reduce the freezing damage. Second, timely removal of frozen flowers and fruits. Due to the influence of low temperature in the previous period, the flowers and young fruits of strawberry in some greenhouses suffered from freezing damage. The frozen flowers, fruits and inflorescences should be removed in time to reduce the loss of plant nutrients and promote plant growth. Third, strengthen fertilizer and water management. Fertilizer applied thinly, applying a three-element compound fertilizer every 15 days, applying 10 kilograms per acre, watering with 0.3% concentration and spraying with potassium dihydrogen phosphate 500 times, every 7 days. Spray once. Fourth, insist on daily ventilation. At present, the temperature is low, and harmful gases (mainly ammonia, nitric acid) in the greenhouse are more common to strawberry. Therefore, it is necessary to insist on daily ventilation of the strawberry in the greenhouse. The ventilation time can be selected when the temperature is high at noon. Fifth, do a good job in pest control. At present, more rainy weather, we must pay attention to the prevention and treatment of strawberry gray mold. Strawberry gray mold can be treated with 50% SulfoMax 1000x or a smoked fumigant.