Ginkgo biloba grafting reasons: Ginkgo biloba longevity tree not only grows slowly, but also bears flowering and is very late. It usually begins to bloom after 20 years of age. However, if grafting cultivation technology is adopted, it can be flowered and steadily in 2-3 years.
Ginkgo tree grafting detailed operation method: Linyi Fertilizer Network Copyright
1. Selection of grafted rootstocks of Ginkgo biloba: 2-3 years old seedlings are suitable. Because of the 2 years old seedlings and leaves, the root system is developed, and the nutrient storage is rich, so the grafting survival rate is high, and the general survival rate is above 90%. Linyi Fertilizer Network Copyright
2. Ginkgo grafting and scion selection: In the growing season, one-year-old branches are collected from the 30- to 40-year-old excellent variety trees for scioning. As far as possible, with the need to pick up, you need to pay attention to moisturizing, prevent decay, conditional low temperature (3 ~ 5 ° C) storage, can also seal wax moisturizing. Ginkgo biloba is dioecious, and the scion should be collected and stored separately according to gender. Linyi Fertilizer Network Copyright
3. Ginkgo tree grafting method: Grafting is carried out from late June to early August. When grafting, cut from the new semi-lignified part of the rootstock, cut a vertical mouth with a sharp knife in the center of the cut, and the mouth length is 2-3 cm. Under the scion buds, cut into a wedge with a bilateral symmetry and a slanted face with a length of 2-3 cm, and cut it from the bud 1 cm to become a symmetrical wedge-shaped scion on both sides of the single bud. Linyi Fertilizer Network Copyright
The cut scion is quickly inserted into the rootstock incision so that the smallest side of the two sides is layered, and the plastic strip is tied tightly and tightly, and the buds are exposed. When there are conditions, a plastic bag (3 to 4 cm in diameter and 10 to 15 cm in length) can be placed over the scion to prevent moisture from evaporating and protect. Grafting time should be selected in cloudy weather, low temperature, high relative humidity, but not in rainy days. Linyi Fertilizer Network Copyright
After the grafting is completed, the plastic bag should be removed in time. In addition, the grafted seedlings of the nursery field should be distinguished from the male and female plants. Linyi Fertilizer Network Copyright
4. Management of grafted seedlings of Ginkgo biloba: After grafting, it can be grown in the original seedbed for 1 year. During the period, it should be large and fat, and can be fertilized by foliage, timely weeding and weeding, and accelerate the growth of seedlings. In the spring of the second year after grafting, transplanting was carried out according to the row spacing of 30cm×60cm. After another 2 years, interlaced and inter-plant seedlings can be implemented to facilitate the cultivation of large-sized seedlings of different specifications. Seedling transplanting can be carried out before and after the frost. Linyi Fertilizer Network Copyright
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