1, seedbed preparation. For the cutting and nursery, neutral sandy loam (pH of 6.50-7) with good water and fertilizer conditions should be selected. If the soil is heavy, an appropriate amount of fine sand will be incorporated during site preparation. If the soil contains a large amount of sediment and the fertility is low, apply appropriate amount of organic fertilizer during site preparation. Combined with site preparation, 0.50 kg of methyl isophosporate per acre was applied to control underground pests. 2, cuttings selection, trimming. Select strong and robust shoots (with good post-anthesis shoots) that were born that year. Cut off the upper part of the shoots, select the middle and lower parts of the shoots, cut one section every 10 centimeters or so, as a cutting, and keep 3 - 4 axillary buds on it. Leaves no leaves or only the top 1-2 leaves, to prevent the loss of moisture and nutrients in the cuttings, so as to facilitate rooting and controlling the growth of branches and leaves. Cut the top of the cutting into a flat mouth, cut into a slant at the lower end, and cut 1 cm from the axillary bud. Clipping should be smooth in order to form healing tissue. 3, rooting treatment before cutting 3.1 soaking method. Use 2nd ABT rooting powder to make 30--50 mg/kg solution. Place 50 to 100 bundles of cuttings into 1 bundle, and dip the bottom 2 centimeters into the solution for 2 to 4 hours. Remove and insert into the seedbed. Depth 3- -5 cm. 3.2 Fast method. A 500 mg/kg solution was made up of 50% alcohol and naphthaleneacetic acid or indolebutyric acid. The lower 2 cm of the cuttings was immersed in the solution for 2 - 5 seconds. After the liquid was slightly dry, the seedbed was inserted immediately. In order to avoid the rot of the cuttings due to bacterial invasion during rooting, 2.50% clomazone may also be added at the same time when preparing the rooting agent. 4, post-cut management. After the cuttings are fully watered, they are then shaded and moistened with a small plastic shed. Spray water in the first ten days to maintain a relatively humid environment; after 10 days, control the water spray, see the dry and then spray, and keep it slightly moist. The cuttings can be rooted in a 20--25°C environment for 20-35 days, and the rooting rate is above 95%. After the formation of new roots, timely top-dressing should be performed to promote balanced development of the seedlings on the ground and underground. China Agricultural Network Editor
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