Glass Products,Blood Counting Chamber,Lab Counting Chambers,Blood Counting Chambers CHANGZHOU RICHGENIUS MEDLAB CO.,LTD , https://www.rich-gen.com
How to graft a thousand orange
Qianjinjuan refers to the farmers from Liuchen Zhoulong Village in Pingnan County who collected wild mandarin oranges from the Qianjinshan Forestry Center. The process of grafting and replacing the lower-grade Qiantangju variety is detailed below:
**Grafting Time and Scion Selection**
Grafting is typically carried out during spring, summer, and autumn. For low-level grafting, the shoots used must be mature and fully developed before the new spring growth appears. Since the tree being grafted is often older and the stock (anvil) is larger, the scion diameter should be between 0.5 cm and 1 cm to ensure a successful graft. If the scion is too thick or too thin, it may affect the survival rate of the graft.
**Low Grafting Technique**
The first step involves cutting the anvil at a height of 20 to 30 cm above the ground. Using a sharp grafting knife, the anvil is cut to create a smooth surface, with a 3 cm long interface made from top to bottom. This cut should reach the xylem to ensure proper contact. The size of the anvil depends on how many branches will be grafted—trees with a trunk diameter of 3 to 5 cm are usually grafted with three branches, evenly distributed. The scion, which is about 5 cm long, should have at least five buds. The lower part of the scion is cut back 1 cm from the base, and the bark is removed 2.5 cm from the cut, reaching into the xylem. The scion is then inserted into the anvil, ensuring that the cambium layers align properly. Once in place, a 4 cm wide grafting tape is wrapped tightly from the bottom up, covering both the anvil and the scion.
**Post-Grafting Care**
After grafting, pesticides are applied to prevent insects from chewing through the plastic wrap. A mixture of 10 to 15 kg of farm manure is sprayed around each graft site, and daily weeding combined with soil loosening is done for 15 days. About 10 days after grafting, numerous "wild shoots" will appear at the base of the rootstock; these should be removed promptly to avoid competition for nutrients. During the budding and leaf expansion stages, insecticides, acaricides, and fungicides are sprayed 2 to 3 times. When the new shoots grow to 10 to 15 cm, they should be topped to encourage more branching. If the second branch develops well, the grafting film should be removed in time. If the growth is vigorous, wooden supports are used to prevent damage from wind. After one year, the grafted tree is managed using fast-growing and high-yield techniques.