The Multi-span Greenhouse Film

Black film
Role: soil cover.
Advantage:
Protection of soil moisture (water conservation).
Reduce soil temperature (grassroots) in the summer.
Light transmission, thereby preventing the germination of weed

Black / White
Role: the soil cover in warm regions. Black side toward the soil.
Advantage:
Protection of soil moisture (water conservation).
Reduce soil temperature (grassroots) and apply to warm areas. The black side toward the soil to prevent weed germination.
Flour appears to reflect the light emitting plants, thereby increasing the quantity of light, increasing the photosynthesis and reduce soil temperature.