Detailed Explanation of Jujube Cutting Propagation Methods and Techniques
Jujube trees grow in mountainous areas, hills or plains below 1700 m in altitude. If you want to propagate jujube trees by cuttings, what is the propagation method?
1. Jujube cutting propagation method
First moisten the sand bed; the moisture standard is that after holes are punched in the sand bed, the holes do not collapse. When cutting, use a small wooden stick to punch holes in the sand bed while dipping the cuttings in slurry and inserting them. The diameter of the small holes should be larger than the diameter of the cuttings after dipping in slurry, so as to avoid the medicinal solution being squeezed off by the walls of the small holes and reducing its efficacy. The cutting depth is about 3 cm; too deep easily causes basal rot, while too shallow causes the cuttings to topple and the roots to be exposed after rooting. After cutting, the holes should be pressed tight so that the river sand and cuttings are closely combined.
2. Management of jujube cutting seedbed
Use active intermittent misting technology to keep the seedbed temperature at about 26°C, with the maximum not exceeding 30°C, and maintain high humidity above 90%. Generally, root primordia form 10 days after cutting, and after 20 days the root system can reach about 5 cm. During the rooting management period, spray the seedbed with 800 times diluted chlorothalonil fungicide once every 7 days or so, which can prevent the occurrence of rot disease.
After rooting begins, foliar topdressing should be carried out, spraying once every 3 to 5 days, such as spraying 0.2% urea and monopotassium phosphate solution, or spraying the leaves with 10 mg/kg rooting powder solution to increase the rooting rate. Rooted seedlings from cuttings in September should remain in the bed to overwinter, and by adding measures such as arched sheds for heat preservation, the safety of the seedling root system should be protected from freezing damage, and they should be transplanted to the nursery the following year for continued cultivation.