Thickness: It does not affect mulching much unless the mulch is used for solarisation i.e. to increase soil temperature to control pests. It is beneficial to use a thin film if possible but we should consider the longevity of the film.
Width: This depends upon the inter-row spacing. Normally a one to one and a half meter width film can be easily adapted to different conditions.
Perforations: For the prevention of water stagnation around the plants, perforation is better. Too much perforation can encourage weed growth.
Mulch color: It effects
Soil temperature
The temperature around the plants' air
Soil salinity
Due to a lesser quantity of water used
Due to a reduction in evaporation and prevention of upward movement of water