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测定了苹果园防霜机开启后保护区内的风速、温度,调查了霜冻发生后树体花芽、花的受冻情况以及受冻后苹果树的坐果情况。结果表明:防霜机开启后,距防霜机10~40 m处风速均在2 m/s以上,其中20m处风速最大,为6 m/s;保护区内苹果树树冠上面最低温出现的时间比对照晚1 h,在1:00,持续时间只有0.5 h,比对照少3.5 h;保护区内的苹果树平均坐果率为92.27%,比对照高64.14个百分点,花、花芽完好率为90.77%,比对照高67.33个百分点,苹果树结的果实发育基本良好,且树体生长明显好于对照。
The wind speed and temperature of the apple orchard frost protection machine were measured. The flower buds and flowers of the tree were investigated after the frost was frozen, and the fruit setting of apple trees after the frost was frozen. The results showed that when the anti-frost machine was turned on, the wind speed was more than 2 m / s at 10 ~ 40 m away from the anti-frost machine. The wind speed at 20 m was 6 m / s, and the lowest temperature appeared above the canopy of apple tree The time was 1 h later than the control, and the duration was only 0.5 h at 1:00, which was 3.5 h less than that of the control. The average fruit setting rate of the apple tree in the reserve was 92.27%, 64.14% higher than the control, 90.77%, higher than the control 67.33 percentage points, apple tree knot fruit development is basically good, and the tree growth was significantly better than the control.