There is a knack for preventing strawberry deformities

1. The flowering period of strawberries cultivated in protected areas in the shed is early, and there are few early flower-visiting insects, so bees can be reared in the shed when the first batch of buds are formed. 2-3 boxes of bees are kept in each standard shed, and the beehives are evenly placed around the shed, so that the pollination rate is more than 95%, and the bee release time is 8-9 a.m. and 3-4 p.m. 2. Reasonable control of temperature and humidity generally begins to keep warm after axillary flower bud differentiation, the temperature is kept at 20 ℃ ~ 30 ℃ during the day and above 10 ℃ at night, especially in the flowering and fruit setting period. The temperature is generally kept at 20 ℃ ~ 28 ℃ during the day, above 5 ℃ at night, and the relative humidity is controlled at 50% to 60%. The non-dripping film buckle shed is used to prevent water droplets from scouring the strawberry stigma. Drip irrigation can effectively reduce air humidity. Third, timely flower thinning and fruit thinning, timely thinning of secondary flowers, abnormal small fruits and diseased fruits, and regular removal of old leaves, yellow leaves and diseased leaves, so as to reduce nutrient consumption, facilitate ventilation and light transmission, reduce diseases and increase light, significantly reduce the rate of abnormal fruit, and help to concentrate nutrients. Ensure the development of normal fruit, improve single fruit weight and fruit quality. Fourth, timely use of pharmaceutical fertilizer to adopt virus-free seedlings, plastic film mulching and other agricultural measures, try not to use drugs or reduce drug dosage and times. When the diseases and insect pests are serious, the medicine should be used before or after flowering, and spraying is strictly prohibited during flowering. In the low temperature, overcast and rainy weather and high humidity in the shed, the beehive should be moved out of the shed, and then fumigated with "Yixunling" fumigant. In the stage of flower bud differentiation and development, proper topdressing nitrogen fertilizer or spraying foliar fertilizer is beneficial to flower bud differentiation and development. To keep the soil moist, especially in the period of flower bud development, flowering and fruit expansion, we should irrigate in time to meet the needs.