
Nano tungsten oxide may be used for the preparation of heat insulation agricultural thin film. This is mainly because the tungsten oxide nanoparticles have an excellent ultraviolet blocking effect. In other words, these nanoparticles can well block ultraviolet rays from the outside which are excessive for plants in the greenhouse. Therefore, an appropriate amount of long ultraviolet rays that are irradiated into the greenhouse can stimulate the growth of plants, increase crop yield, and promote the synthesis of proteins, sugars,…