In November, the weather will be very cold, and rain and snow will frequently visit. The temperature will drop a lot, and there will be low temperatures below 0°C. This year, the temperature is comparable to or lower than the same period last year. Production should be timely to do a good job of greenhouse windproof, snow, cold insulation work, timely insulation on the greenhouse is good, after the snow to remove the snow on the greenhouse.

The current situation of strawberry growth: Due to the low temperature in the middle and late October of this year and the continuous cloudy days, the growth and development of strawberries is obviously slow, and the seedlings are in a rigid state. At this stage, management must pay attention to increasing the temperature in the greenhouse and timely laying out the plastic film. , Foliar spray fertilizer and growth regulators promote growth.

I. Temperature Management In November, greenhouses have been covered with thin films. Strawberries grow in a relatively closed greenhouse environment. Temperature management in greenhouses is very important. Temperature management should consider the size of the strawberry seedlings in the greenhouse. The principle of temperature management is “small seedling promotion, large seedling control”. That is, the management temperature of small berry seedlings should be appropriately higher to promote its growth, and large seedlings should be reduced in management temperature. Control the speed of its growth. 3 leaves, daytime temperature 20°C~28°C, nighttime temperature 10°C~12°C; 4~5 leaves, daytime temperature 20°C~25°C, nighttime temperature 6°C~8°C; 6 leaves, daytime Temperature 20 °C ~ 25 °C, night temperature around 5 °C.

Second, to supplement the foliar fertilizer to supplement the foliar fertilizer to regulate the growth of the strawberry, and to strengthen the supplement of the foliar fertilizer at the early stage of flowering of the strawberry. General spray application Bi-protection, potassium dihydrogen phosphate, every 5 to 7 days foliar spray 1 time.

Third, daily management 1. Timely removal of old leaves, yellow leaves, pests and leaves, reduce pest damage, improve ventilation and light conditions, and promote growth. Always keep 5 to 6 robust leaves per plant. 2. Remove the pods that occur in large quantities along with the vigorous growth of strawberry plants and reduce unnecessary nutrient consumption. 3. Thinning and fruit thinning: The flowering and fruit thinning measures should be taken during the flowering period to eliminate high-level minor and weak flowers. After the results, the malformed fruit, diseased fruit, and small fruit were discarded, and finally the first inflorescence retained about 4 to 7 fruit and the second inflorescence retained about 6 to 7 fruits.

IV. Control of gray mold and powdery mildew Diseases Gray mold and powdery mildew are the main diseases of strawberries, and the production of strawberries is seriously endangered. Control methods: timely removal of dead leaves and old leaves, creating conditions for ventilation and light transmission, preventing strawberries from growing in a low-temperature, high-humidity and high-temperature, high-humidity environment. Drug control: use Tsuibei spray, sulfur powder, chlorothalonil aerosol fumigation.

V. Preparation of greenhouse pollinators Bees planted earlier in the month are gradually blossoming. In order to increase the fruit setting rate, bees are placed to help pollinate when the strawberry is in flowering. Generally, the strawberries are put into the shed 5 to 6 days before flowering. 15 days before the bee was sprayed, the pesticide was thoroughly disinfected to prevent pests and insects. The bees were moved out during the spraying and moved into the shed after 3 days.

ABS First Aid Bag

Abs First Aid Bag,Abs First-Aid Devices Box Bag,Plastic First Aid Box,Medical Mini Abs First-Aid Kit

Shaoxing Weijian Medical Supplies Co.,Ltd. , https://www.wetourmedical.com