棚内“小气候”的调控温度１一般情况下，大棚内温度上午东边高，下午西边高。在通风换气时，要先扒中间，然后扒东边，最后扒西边。关闭时要先关东边，后关西边，最后关中间。２要注意天气变化情况及风向，有风时要先开下风头，后开上风头，且要上风头小开，下风头大... Sheds “microclimate” regulation temperature 1  Under normal circumstances, the temperature in the east of the greenhouse high in the afternoon west high. In ventilation, we must first grilled the middle, then grilled east, finally grilled west. Close the East, then Kwan West, the last off the middle. 2  To pay attention to changes in the weather and the direction of the wind, when the first wind to open the limelight, after the limelight, and to the downside, under the limelight ...