When will the blueberry fog varieties in Linyi drop?

The blueberry fog variety 65438+ in Linyi entered the shed in late February. According to meteorological data, the time for Linyi area to stabilize above 7.2℃ is around165438+1October 20th. According to the requirement that it takes 800 hours (about 34 days) to grow blueberries, the warming time of blueberries in the greenhouse should be a safety factor of165438+1October 20th +34 days +3-5 days, that is, under normal circumstances, the warming time of blueberries in the greenhouse is 65438+February 27th-29th, which is a safe period. For other cooling requirements, the heating time of the tent is analogized. The fog blueberry has medium maturity, medium fruit, high sweetness BX4.0%, low acidity PH4.20, and cold storage capacity 150 hours. The characteristics of fog blueberry are high and stable yield, and the suitable area for planting is warm area, which can be evergreen.