▎ 摘　　要

NOVELTY - Preparing bismuth ion functional graphene agricultural film comprises placing oily bismuth ion graphene and colloidal particles into a stirrer, stirring, drying, to obtain the mixed material for further use; adding the mixed material into an extruder, melting, mixing, extruding, cooling, cutting and drying to obtain a functional masterbatch, and adding the functional master batch obtained to a film blowing machine, and blowing film to obtain final product. USE - Method for preparing bismuth ion functional graphene agricultural film, which used in three kinds of application films such as weather film, mulching film, and ground bottom film. ADVANTAGE - The method has better heat preservation effect, kills the overground bacteria and harmful virus, and the bismuth ion effect effectively inhibits harmful fungal infection plant root, also reaches the effect of isolating disomiasis. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for use of the preparation method of the bismuth ion functional graphene agricultural film where the bismuth ion functional graphene agricultural film is used in three kinds of application films such as weather film, mulching film, and ground bottom film.