1. During the flowering period of the shed, the strawberries cultivated in protective cultivation are early in the flowering period, and there are fewer flowering insects in the early stage. Therefore, when the first buds are formed, the bees can be stocked in the shed, and 2 to 3 boxes of bees can be stocked in each standard shed. Placing evenly around the shed allows the pollination rate to be above 95%, and the time for beekeeping is 8 to 9 o'clock in the morning and 3 to 4 o'clock in the afternoon.
Second, the reasonable regulation of temperature and humidity in general after the bud differentiation, will start before going to sleep insulation, temperature during the day maintained at 20 °C ~ 30 °C, kept at 10 °C or more at night, especially in the flowering and fruit setting period should be frequent changes in air humidity, Insulation. The daytime temperature is generally maintained at 20 °C ~ 28 °C, kept at 5 °C or more at night, relative humidity control in 50% ~ 60%. Drop-proof membrane sheds are used to prevent water droplets from eroding strawberry stigmas. With drip irrigation, air humidity can be effectively reduced.
Third, timely sparse fruit thinning and timely removal of secondary flowers and deformed small fruit, disease, regular removal of old leaves, yellow leaves, diseased leaves in order to reduce nutrient consumption, is conducive to ventilation and light, reduce disease and increase light, can be significantly Reduce the rate of malformed fruit, and is conducive to the concentration of nutrients, ensure the development of normal fruit, improve the weight of single fruit and fruit quality.
Fourth, timely use of medicinal fertilizer using virus-free seedlings, mulching and other agricultural measures, try not to use drugs or reduce the amount and frequency of medication. Severe pests and diseases should be used before or after flowering, flowering is strictly prohibited spraying, in low temperature and rainy weather, when the humidity in the greenhouse is high, the beehives are moved out of the shed, and then use "a smoked" fumigation agent fumigation control. In flower bud differentiation and development stage, appropriate topdressing nitrogen fertilizer or spraying foliar fertilizer is conducive to flower bud differentiation and development. To keep the soil moist, especially during flower bud development, flowering, and fruit expansion, timely irrigation should be provided to meet the needs.
Second, the reasonable regulation of temperature and humidity in general after the bud differentiation, will start before going to sleep insulation, temperature during the day maintained at 20 °C ~ 30 °C, kept at 10 °C or more at night, especially in the flowering and fruit setting period should be frequent changes in air humidity, Insulation. The daytime temperature is generally maintained at 20 °C ~ 28 °C, kept at 5 °C or more at night, relative humidity control in 50% ~ 60%. Drop-proof membrane sheds are used to prevent water droplets from eroding strawberry stigmas. With drip irrigation, air humidity can be effectively reduced.
Third, timely sparse fruit thinning and timely removal of secondary flowers and deformed small fruit, disease, regular removal of old leaves, yellow leaves, diseased leaves in order to reduce nutrient consumption, is conducive to ventilation and light, reduce disease and increase light, can be significantly Reduce the rate of malformed fruit, and is conducive to the concentration of nutrients, ensure the development of normal fruit, improve the weight of single fruit and fruit quality.
Fourth, timely use of medicinal fertilizer using virus-free seedlings, mulching and other agricultural measures, try not to use drugs or reduce the amount and frequency of medication. Severe pests and diseases should be used before or after flowering, flowering is strictly prohibited spraying, in low temperature and rainy weather, when the humidity in the greenhouse is high, the beehives are moved out of the shed, and then use "a smoked" fumigation agent fumigation control. In flower bud differentiation and development stage, appropriate topdressing nitrogen fertilizer or spraying foliar fertilizer is conducive to flower bud differentiation and development. To keep the soil moist, especially during flower bud development, flowering, and fruit expansion, timely irrigation should be provided to meet the needs.
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