Seedling propagation and cultivation techniques
First, seed propagation method
Fragrant pods do not contain seeds, which are usually propagated by buried roots and branches. The survival rate of twigs is low, and the main method is buried roots.
1. For root-bearing breeding, choose 1-2 years of primary and lateral roots of fragrant calyx, preferably 0.3-1.5 cm in diameter. Greenhouse seedling transplanting and field burying the root can be used. The area in which the indoor nursery is located differs, and the nursery time is different; the nursery is transplanted to Daejeon in May.
2. When the field is buried in the field and the minimum outdoor temperature is 10 degrees or more, cut the roots of the fragrant calyx into 5-6 cm long sections, bury the roots in the boring machine with the flat burying method, and cover 110 cm wide and 2 rows per bed. About 5 cm deep, 2560 cm spacing, after the emergence of enhanced water and fertilizer management.
3, seedlings field management:
(1) valerian herb: when the seedlings grow out of 4-5 leaves, artificially weed the grass. Seedlings grow to about 40 cm. Weeding herbicides are used, and cotton herbicides are generally used.
(2) Pest control
a. Before planting the roots of fragrant calyx, prevent and control underground pests and spray them with sulphur-containing phosphorus.
b, fragrant bud seedlings to prevent aphids or grasshoppers to eat the trunk and leaves, with the commonly used pesticides to prevent, such as zincphos, omethoate spray.
c. In the summer, attention should be paid to the control of the black worms on the tip and tender leaves of fragrant calyx, which is usually treated with pesticide sprays.
d. Before and after the fall, the roots and parts of fragrant calyces are prone to rot or nematodes feeding, and are sprayed with insecticides to prevent corrosion.
(3) Seedling management, pay attention to the side of the heart, the general side of the heart to go up to 3 cm long before, so as not to affect the growth of seedlings. When the saplings grow to about 60 cm, they should be prevented by the method of bundling with sticks to prevent the wind from causing the seedlings to fall down.
(4) Fertilization: Fertilize when seedlings are more than 50 cm, use urea or diamine and throw them out before rain. Fertilize once every 20 days or so.
(5) Seedlings should be properly watered so as not to affect seedling growth.
Second, sticking method
The hardwood of one year was used to cut the branches into 12-15 cm cuttings in mid-April. For each bundle of 50 roots, dip the shoots with the concentration of 50ppm of ABT2 rooting powder for 2-4 hours and remove and cut them. The plastic film was transplanted to the ground to increase the temperature and moisturize the soil. The cuttings were inserted at a 45-degree angle in a boring machine at a spacing of 2020 cm. After the cuttings, the soil is often kept moist, and the rooting or cutting seedlings can grow to 1.5-2 meters in length, have a diameter at breast height of 1-2 cm, and the fragrant calyx reproduces quickly. Each plant can use the root cutting method to propagate 50-60 seedlings in the second year. . Other management ibid.
Third, transplanting seedlings
Transplantation of fragrant calyx should be carried out after falling leaves in autumn or before budding in spring. After the seedlings are well loaded, they are filled with soil, compacted and irrigated, and then kept moist. Due to its strong vitality, the survival rate of plants is high, seedlings do not need to carry soil, and the survival rate of plants can reach 95% or more. After loading, it will be dried or naturally grown according to different greening conditions. Other management ibid.
Due to the natural growth of the canopy, the canopy opens beautifully and does not need to be trimmed. The fragrant calyx grows rapidly and blooms early. Generally, it blooms in the second year after planting. The height of the tree can reach 2-3 meters in the year and the diameter at breast height is 3-4 centimeters. In cold regions, plants should be picked before and after the beginning of autumn for 1-2 years to pick up the core, promote lignification, and increase cold resistance. The most fragrant flowers of Xiang Hua Tuo are ornamental flowers. They can also bloom 200-500 safflowers at the same time. It is very spectacular and beautiful. The most cultivated value is the full bloom of the year and the year. It can be said that "the summer garden enjoys beautiful scenery and the citron can be seen in different shades." The most popular is cold and drought resistance, strong adaptability, both north and south. Due to its unique ornamental and landscaping value and its broad prospects for development, Xiang Hua Tuo is a new species of woody flower to be developed.
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