The latest course of cutting techniques and methods of American red maple

American red maple is native to the east coast of the United States, also known as safflower maple, northern red maple, North American red maple and so on. It mainly comes from the northern United States and most parts of Canada. It is a deciduous tree of Acer family. It grows fast, and the adult tree is 12cm high, with a crown width of 12 meters, which can adapt to a variety of soil types. Let's take a look at the cutting technology of American red maple.

Cutting time of American red maple

American red maple cutting propagation usually in late winter and early spring dormant buds have not yet sprouted, after the temperature rebounded in mid-late February, select robust annual red back cinnamon branches without disease and insect pests, each cuttings grow 8-10 cm, the upper end of the cuttings is cut flat, the lower end is cut into a bevel, the incision is smooth without tearing, each cuttings retain the upper 1-2 axillary buds, and the base is cut flat with a sharp blade.

Cutting technique of American red maple

1. Bed preparation: one week before cutting, the American red maple is disinfected with 0.5% potassium permanganate solution, and the box surface of the bed is covered with plastic film. The slotting machine is 10 meters long, 1.20 meters wide and 35 centimeters high. The surface layer is covered with 5 centimeters of river sand and covered with 3 centimeters of clean yellow soil.

2. Cutting method: the rooting agent of American red maple was prepared with indyl naphthalene mixture + glutamic acid + inositol according to the mass ratio of 4.1 to 0.02, and the concentration was 1000 mg / L. Soak the base of cuttings for 2 hours, then use rooting agent aqueous solution to add yellow soil, stir into mud, cut the lower end of cuttings dipped in mud.

3, cutting density: when cutting according to 1O*10 cm plant spacing, first use a wood (bamboo) stick to pierce a small hole, and then insert the cuttings dipped in mud into the small hole, insert the depth of the cuttings into the cuttings, cover the substrate with compaction, water thoroughly with a fine-hole spray pot, and then build a small arch shed to cover the film.

Cutting Management of American Red Maple

1. Temperature: the temperature is controlled at 20: 28 ℃. When the temperature in the shed is higher than that of the nursery bed, the film at both ends of the arch shed should be opened for ventilation to make the temperature drop.

2. Humidity: keep the air relative humidity at 80-90% by spray, twice a day, spray twice with high temperature on sunny days, spray less or no spraying on rainy days, and keep the substrate moist.

3. Lighting: after 7-10 days of cutting of American red maple, the transmittance in the shed reached about 60%. When 80% of the cuttings took root in 7 days, and the root was 2-3 cm long, remove the sunshade net before 11:00 and after 5 pm every sunny day, and remove the sunshade net throughout the cloudy day.

4. Nutrients: after the American red maple cuttings took root, foliar fertilization was carried out with 0.5% urea and 0.2% potassium dihydrogen phosphate solution, once every 10 days.

5. Disinfection: after cutting, American red maple sprays 600 times carbendazim every 15 days.

6. out of the nursery: the American red maple began to take root 15-20 days after cutting. after 50-60 days of nursery cultivation and management, the seedlings were as high as 10-15 cm and 5-7 leaves.