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(三)促成栽培的技术要点4.花果期管理(1)温湿度管理萌芽后40～50天大棚葡萄即进入开花期,约在4月下旬～5月上旬,此时露地平均气温已达15～17℃,大棚内平均气温约为25～28℃,适合葡萄生长。开花前应充分保持大棚内良好通风透光条件,但遇冷空气侵袭时仍须闭棚保温,以保证授粉期间的适宜温度,防止产生无核果。棚内空气湿度应控制在60%～65%,需防止阴雨导致棚内高温高湿引起烂花,以及灰霉病的发生。除覆
(C) to promote the technical aspects of cultivation 4. Flower Management (1) temperature and humidity management 40 to 50 days after germination greenhouse grape into the flowering period, about in late April ~ early May, when the average temperature reached the open air 15 ~ 17 ℃, the average temperature in the greenhouse is about 25 ~ 28 ℃, suitable for grape growth. Before flowering should be fully maintained good ventilation and light conditions within the greenhouse, but in case of cold air invasion still closed shed insulation to ensure the right temperature during pollination to prevent the production of non-stone fruit. Shed air humidity should be controlled at 60% to 65%, to prevent overcast caused by high temperature and humidity caused by the greenhouse Burnt-out, and the occurrence of gray mold. In addition to over