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Suitable for young seedlings in summer
In the summer, tender shoots are cut because of the high content of auxin in the shoots, the young tissues, and the active meristem. The apical buds and leaves have the functions of synthetic auxin and rooting agents, which can promote the formation of callus and rooting, and are easy to survive. The technical points are now described as follows: 1. The selection of sandy loam for nursery bed preparation is preferable. Before the cutting, it is best to use a 3% aqueous solution of black loquat to disinfect the soil. Spray 3 to 4 kilograms per square, and open the ditch for the seedbed. The bed width is generally 1 Meters, 0.3 meters high. 2. For the hard-to-root tree species, the younger the age of the tree is, the better; the basal sprouts and leggy branches are generally higher than the normal rooting rate. Mining should avoid noon. 3. Spikelets The tender cuttings generally require 2 to 4 nodes, 6 to 15 cm long, to retain the buds and leaves as much as possible for photosynthesis. The cuttings should be cut 2 centimeters above the cuttings and cut obliquely at the bottom. 4. The cuttings are best cut in the rainy season from the end of May to the beginning of September, which is conducive to rooting and improving the survival rate. The cutting depth is generally one third of the length of the cutting. Broad-leaved trees can be diluted to some extent, with no overlap between the leaves, after a single spray. 5. After the plug-in management set shade, keep the temperature 20 °C to 25 °C, relative humidity 80% to 85%. Every two weeks, spray with water spray 2 to 3 times 1000 times of carbendazim to prevent disease. After the seedlings are rooted, shades can be gradually removed to extend the light. Every 7 to 10 days, spray 0.1% to 0.2% of thin urea solution to make cuttings grow robustly.
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