Ziye genus Rosaceae Prunus deciduous tree, its branches purple, leaves ovate to obovate, brown purple; leaf expansion of the mid-April and mid-November leaves throughout the year does not change color; hi warm, humid climate, soil requirements lax. Ziye generally taken grafting methods breeding, but the high cost and slow to reproduce, easy variability, short life. Autumn and winter cuttings method is low cost, high speed, cutting survival rate is more than 95%. Briefly described as follows: 1. The cuttings prepare: Select 3-4 years old, and the robust growth of the tree as the mother tree. Year-old branches, clipping from the mother trees in late autumn after the leaves no pests can also be combined with a pruning cut thick buds full, no pests and mechanical damage of the branches as cuttings. The cut will be selected cuttings 40-50 cm branch segment, bundling 100-200, buried in wet sand storage. 2. Nursery site selection and site preparation: nursery places should be selected irrigation and convenient transport, soil requirements for deep, fertile, loose sandy loam. Before land preparation per acre uniform composting manure applicator 1 to 1.5 tons, and 50% carbendazim 1500 Urza soil, soil sterilization; applicator and then 4000 g of 50% zinc parathion granules kill soil pests. Then deep plowing, small rake, leveling land, clear the weeds waste plastic sheeting and other debris, mounding. Furrow length according to the nursery 1 meters Qikuan; between the plot and the plot remain ditch, ditch 0.3 meters wide and 0.2 meters deep. After doing a little cultivator repression Qimian raking prepare cuttings. 3. Cutting time: late November to mid-December. 4. Cutting method: before cutting, first just cut the branches or stored in wet sand, cut thin branches and the dehydration drying shrinkage part, then the bottom-up, long branches shear grow 10-12 cm, 3 to five bud cuttings. Cuttings lower end near the bud at cut into a smooth slope, in order to increase the contact surface of the forming layer and the soil, is conducive to rooting. The cuttings upper end from the buds the scissors from 0.8 to 1 cm Qicheng Ping surface. Cuttings scissors slant to the lower end immersed 清水中浸泡 15-20 hours, so that the cuttings fully absorbing enough water. Proportionally with a 50 × 10-6ABT6 No. ABT dubbed rooting powder, dipped cuttings to facilitate rooting. Cuttings slant down into the soil at a spacing of 5 × 5 cm, the top buds 0.5 to 1 cm above the ground. Cuttings immediately after the water bleed irrigation, make cuttings and soil in close contact. Double-layer plastic film covering the soil moisture to be slightly dry ground, the same time take the 1-meter-high Qimian the width and Qimian plastic small shed to facilitate the insulation, to keep out the cold. 5. Cutting seedling management: seedbed mulch and small shed can be maintained for a long time do not have irrigation, such as plastic film under dry soil, irrigation water once again along Qigou Yin. Minimum temperature dropped to minus 5 ° C in the Shed plus straws antifreeze insulation; minimum temperature rose to 0 ° C during the day and opened straws, night surrounded Caolian; lowest temperature reached more than 5 ℃, should be opened during the day Shed , appropriate to let in fresh air, anti-high-temperature burns seedlings. 3-5 cm high seedlings in early March, the daytime opened mulch ventilation practice seedlings with seedling growth gradually increase the amount of ventilation. From late March to early April, to keep the seedbed moist. In mid-April