| The main materials and techniques of Beijing Zhongke Environmental Engineering Co., Ltd. were selected. The shrub seedlings of ulmus pumila with a ground diameter of 3cm were used as the test seedlings, and the field planting production mode was used as the control. Five treatments were set up. The composite matrix was put into the root control containers of k4050 and k5060 to plant the test seedlings, and in the process of plant growth, according to the structural law of geometric shape, the artistic shape of single ulmus pumila hemispherical shape was made, and it was applied to the garden green space. Through comprehensive analysis of the planting survival rate, diameter of joint and leaf coverage, it is found that the best cultivation mode of ulmus pumila hemispherical shape suitable for Beijing area is A2, which provides a feasible treatment scheme for large-scale production of high-end green seedlings in the future. |