在果树设施栽培中,有的果农盲目追求果品上市时间,而过早地扣棚升温,导致果树生长发育不正常,出现发芽迟,不整齐,花芽不开放,或芽枯脱落、生长不良等现象,甚至造成设施栽培失败,经济损失较大。所以科学确定设施栽培果树扣棚升温的适宜时间是至关重要的。众所周知,果树秋季落叶进入自然休眠 In the cultivation of fruit trees, some farmers blindly pursue the time to market their fruits, and prematurely buckle the shed, resulting in abnormal growth and development of fruit trees, resulting in late germination, irregular flower buds, or buds off, poor growth and so on , And even caused the failure of the cultivation of facilities and the great economic loss. Therefore, it is of crucial importance to scientifically determine the proper time for warming fruit trees in sheds. As we all know, fruit trees fall into the natural fall dormant leaves