When will jujube seedlings be planted? How the survival rate of grafting is high?

Jujube is a kind of food that we often eat, whether it is fresh fruit or dried red jujube after drying, it has its unique flavor. Jujube is rich in vitamins and is planted all over China, especially in plain and hilly areas, which is suitable for its growth. When will the jujube seedlings be planted? How the survival rate of grafting is high?

When will the jujube seedlings be planted?

Jujube seedlings can be planted in spring or autumn, as long as the average temperature in January is not less than 8 ℃ below zero. Sandy soil with flat terrain, good drainage and irrigation and fertile soil should be selected as nursery.

Second, how do jujube trees have a high survival rate of grafting?

1. Select scion

Before the jujube tree sprouted in the middle of March, one-year-old strong branches were selected on the grafted variety tree, the secondary branches were cut off, and the middle and upper buds were cut into one section, leaving about 1 cm above the upper bud of each section. so that there is enough Internode length at the lower end to cut.

2. Scion treatment

Put the cut scion into a washed beverage bottle or other container, pour in 1%-2% sucrose water, soak it in a cool place for 5-7 days, rinse the scion repeatedly with clean water, store it in the freezer with plastic bags, soak it in sugar for 1-2 days before grafting, rinse thoroughly and moisturize.

3. Grafting

Around the first ten days of April, the tree activity is active, and grafting can be carried out at this time. First, the scion is wrapped with a 3 cm wide film band, leaving only the bud eye and the lower end 2 cm to 3 cm branches. If it is bandaged after the scion is inserted, it is not only inefficient, but also easy to shift the scion in the interface and reduce the survival rate when bandaging the upper part of the scion. Then cut the lower end of the scion into a wedge. The xylem of jujube branches is relatively hard, and the knife used must be sharp to ensure that the section is smooth. After cutting, wrap it in a washed wet towel to prevent it from drying. When grafting and raising seedlings, cut off the rootstock 5 cm above the ground of the rootstock, and the jujube should select the branches with 1-3 years old, rising branches and active growth, and graft them in the lower part, leaving no other growing branches on the rootstock. Carry on the grafting operation according to the routine, pay attention to align the cambium, wrap the film belt into a rope at the interface, and forcefully tie several more lines at the cut of the rootstock, so as to reduce the gap between the rootstock and the scion.

4. Post-management

After grafting, the sprouts on the rootstock should be wiped out in time, and the binding material should be removed when the new stock is slightly longer than 20 centimeters. If the interface has not healed well, it can be wrapped again and removed after one month. The scion grows vigorously after survival, and the branches and leaves are heavy, so it is easy to break at the interface in case of wind and rain. A strong stick should be tied up at the interface in time and released after autumn. Other aspects can be managed in accordance with the routine.