Modular pre-group-planting transplanting method for nursery stock group planting

The invention relates to the technical field of garden engineering, in particular to a modular pre-group-planting transplanting method for nursery stock group planting. A special-shaped planting container in the transplanting process comprises a mounting cylinder, positioning cones, a threaded hanging ring, a group-planting protection cover, group-planting inlets and outlets, a breathable water seepage plate, a mounting alignment plate, a fixing piece, a positioning mounting hole, a rotating column and a contour fixing unit. The plurality of positioning cones are fixedly connected to the lowersurface of the mounting cylinder; the upper surface of the mounting cylinder is in threaded connection with a plurality of threaded lifting rings; a group planting protection shield is connected intothe mounting cylinder in a buckled manner; and the group-planting inlets and outlets are formed in the upper and lower parts of the group planting protection shield. The problems that a traditional transplanting method is lac