Silver black light conversion and black alternate mulching film

The mulching film comprises a mulching film body, the mulching film body comprises black layers and silver light conversion layers, the black layers and the silver light conversion layers are arranged on the upper surface of the mulching film body at intervals, the black layers are arranged on the lower surface of the mulching film body, and the proportion value of the width of the black layers and the width of the silver light conversion layers in the upper surface is gradually increased from the middle to the two sides. An ultraviolet stabilizer is sprayed above the black layer on the lower surface, an anti-aging agent is sprayed below the black layer on the lower surface, the silver light conversion layer sequentially comprises a substrate layer, a metal thin film layer, a dielectric thin film layer and a protective layer from bottom to top, the substrate layer is in contact with the black layer on the lower surface, the substrate layer is made of silicon resin, and the protective layer is made of silicon