Strawberry Winter Management
The sudden drop in temperature, only to do a good job strawberry management in the Winter greenhouses, to ensure that strawberries achieve high quality and high efficiency.
Shed temperature management, during the flowering period of the strawberry, the temperature in the greenhouse is maintained at 25°C during the daytime and above 5°C at night, which is conducive to flowering, fruit growth and maturation; it should not be higher than 25°C during the day and 3°C-5°C at night. When the temperature drops below 0°C, a layer of medium sheds and small bow sheds should be added to the greenhouse to protect it from frost damage.
Control the humidity in the shed, strengthen the ventilation and air humidity, and influence the strawberry flowering and pollination. After the flowering, the strawberry greenhouse should keep the relative humidity of 50%-60% as much as possible. When it is too dry, it should be irrigated, and the humidity should be large enough to ventilate and reduce the shed. Internal humidity.
Plant management, strawberry growth period, each strawberry leaves to maintain 8-10 leaves, should be timely removal of old leaves, residual leaves, diseased leaves and pods stemming to ensure that nutrients concentrated supply of fruit.
After fertilizing, increase the amount of fertilizing fertilizer in each batch of fruit after harvesting, and apply 5-6 kilograms of nitrogen, phosphorus and potassium compound fertilizer per standard shed, or apply 0.2% potassium dihydrogen phosphate solution to the leaves, separated by 5- 7 days of continuous spraying 2-3 times, fertilization can be combined with irrigation or watering.
Strengthen pest control. Greenhouse strawberry disease is mainly gray mold and powdery mildew. Prevent and control gray mold, ventilation should be strengthened to reduce the humidity within the greenhouse, can be controlled by 50% speed Keling 1000 times, can also be used "a smoke Ling" fumigation agent control; powdery mildew in the early onset of the timely spraying control , 40% Fuxing 5000 times or 15% triadimefon 1000 times spray control.
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