Can red bamboo shoots planted in autumn be sprayed with chlormequat chloride?

Red bamboo shoots planted in autumn can be sprayed with chlormequat chloride. After the application of chlormequat chloride, the thick nodes of stems are short, and the thick nodes of leaves are reduced, delaying senescence and promoting root growth.

There are many propagation methods of bamboo, which can be propagated by seed sowing or bamboo and some bamboo. The methods of asexual propagation include whole plant transplantation, beating, bamboo shoot transfer, bamboo stem layering, bamboo stem cutting, bamboo branch cutting and so on.

1. Seeding and seedling raising can cultivate a large number of bamboo seedlings in a short time. The germination ability of Phyllostachys pubescens seeds is easy to lose during storage, so it is necessary to raise seedlings with new seeds. Before sowing, the powder on the surface should be washed off with clear water, soaked in 0.3% potassium permanganate aqueous solution for 2-4 hours for disinfection, and then washed with clear water to sow. Each mu of seedbed needs about 65438 0.5 kg of seeds, and about 8000 bamboo seedlings can be bred. Management measures such as irrigation, drainage, intertillage weeding, topdressing and pest control should be taken during seedling raising.

2. The whole plant is transplanted with sporadic bamboo species. Young bamboos of 1-2 years old are selected as mother bamboos, and the mother bamboos should also grow healthily, with low branches and upright bamboo stems, free from pests and diseases, so that the transplanted plants are easy to survive. Hsinchu has developed rapidly. The forest was established early, but the reproductive coefficient was small. When transplanting mother bamboo, the mother bamboo should leave a "whip" of 30-40 cm, 50-70 cm. "In addition to the whip". Don't damage the inverted bud on the whip, bring more whip roots to protect the stem beans at the base of the bamboo stem from being cracked by the bamboo whip.

3. Layered propagation: During February-April, bamboo stalks accumulated a lot of nutrients. Before the juice begins to flow, select bamboo stems with hidden buds for base propagation, leave 20 nodes, cut off the bamboo tips, and keep only 1 main branches and branches and leaves with hidden buds in each node. Press the bamboo pole into the soil and cover it with 3-5cm. Leave the branches and leaves of the last node outside. Cover the grass and water it to keep it wet. After 3 months, the hidden buds can germinate, take root and grow bamboo seedlings. The next spring, the layering was dug out and the section was sawed into independent bamboo seedlings.

4. Bamboo cutting propagation and bamboo branch cutting propagation: the 65,438+0-2-year-old bamboo culm with all hidden buds is cut off from the base, and all branches except one main branch and surrounding lateral buds are cut off in each section, so that the whole bamboo culm can be inserted into the seedbed soil, or the bamboo culm can be cut into 65,438+0-2 sections for cutting, and the dosage before cutting is 65,438+000. Trenches of 10- 14cm are arranged on the seedbed according to the row spacing of 25-30cm, and the plant spacing is about 15cm. The ditch is leveled, sloping or left straight, covered with soil for 3cm, and then covered with grass and watered. Bamboo seedlings can be planted in 7-8 months.