
Tungsten oxide nanopowder is an infrared absorbing material, which may be applied for producing thermal absorption agricultural plastic film with a type of white light-reflecting material. The white light reflecting material is at least one selected from the group consisting of Ti02, ZrO2, SiO2, Al203, Mg0, ZnO, CaC03, BaS04, ZnS, and PbC03. The obtained agricultural film can be used as a land cover film for agricultural and horticultural use. Thus, the new type of agricultural and horticultural land cover film…