The crops are planted under the transparent zone, and the furrows are covered with black strips. In addition to the heat and moisture preservation functions of ordinary mulch film, the crops under the transparent zone can fully absorb sunlight and promote production. The weeds under the black belt grow slowly due to insufficient light, so it can effectively control weeds, reduce the use of pesticides, overcome the defects of ordinary film can not weed, black film is not enough light, make the crop growing environment stable, play the role of increasing yield and reducing the planting cost.