Using mechanical roller shutters to open and close them at appropriate times can significantly shorten the time spent uncovering and covering straw mats (or insulation blankets).
This allows for a longer period of light exposure for vegetables inside the greenhouse. Furthermore, opening the shutters earlier and closing them later can extend the overall light exposure time within the Greenhouse greenhouse.
Generally, the shutters should be opened 0.5 to 1 hour after sunrise. Closing the shutters half an hour before sunset is ideal; it should not be too late.
The ground inside the Sawtooth Greenhouse greenhouse can be covered with mulch film. The reflected light from the mulch film enhances the light intensity at the base of the vegetables.
This compensates for insufficient direct sunlight at the base, resulting in better coloring of fruiting vegetables and preventing premature aging of lower leaves.