Summer nursery method of Eucommia ulmoides

High-altitude striping reproduction, every year from June to July, select 2-3-year-old robust branches with a diameter of about 1 cm as high-pressure branches, choose about 15 cm away from the high-pressure branch as the high-pressure position, peel off the cortex with a knife on the high-pressure position, with a width of about 6 cm, you can also hit the cortex of this place with a small stick, and the intensity of beating is better to smash the skin without falling off. After drying for 3-4 days, use plastic film to circle 2-3 circles above the high pressure level to form a cylinder. The length of the tube is 25 cm and the diameter is 10 cm. Then, the plastic film cylinder is fastened with a rope at 5 cm below the high pressure position, and the culture soil is filled with plastic film, so that the high pressure branch is in the middle of the plastic film cylinder. After filling, tie the diaphragm tube tightly with a rope at the upper end of the high pressure position to make it spherical. After that, clean water is injected into the culture soil with a large syringe once a week to keep the nutrient soil moist. In about 30 days, the wounds of high-pressure branches will heal and grow new roots; in about 60 days, the branches will be cut off from the mother tree and the plastic film will be removed, and they can be transplanted.

To make nutritious soil, use humus soil and 20% mature human feces. From June to August, the sturdy branches of the same year were cut into small segments with 3 lateral buds and soaked in ABT2 rooting powder solution containing 50 mg / kg for 1-2 hours. Note that the terminal bud leaves on each segment should be retained. Drill holes in the seedbed with a wooden cone, insert the branches into the seedbed, the upper end of the branch height is as high as the bed surface, the upper leaves can be exposed, and then put a shade shed on the seedbed. Within 1 month, spray water once every morning and evening. After the root system is formed, the number of water spraying should be reduced gradually, as long as the bed is kept moist.