When is the grafting survival rate of litchi high?

The most suitable time for litchi grafting is spring and autumn, with spring from March to May and autumn from the end of August to the beginning of 10. The temperature in these two periods is suitable, and the grafted litchi not only has high survival rate and emergence rate, but also has rich subsequent growth and yield.

Grafting time of litchi

The most suitable time for litchi grafting is spring and autumn every year. The temperature in these two seasons is more suitable, but not in summer and winter.

After several months, the survival rate of litchi grafting was high.

It is suitable to graft litchi from March to May in spring, and from the end of August to the beginning of-10/0 in autumn. In these periods, grafted litchi not only has high survival rate and emergence rate, but also has rich subsequent growth and yield.

What stump can be grafted with litchi?

Litchi grafted seedlings should choose varieties with developed root system, deep taproot and many lateral roots. The rootstocks include local wild litchi, Hu Aizhi, and Black Leaf.

Before grafting, scions and rootstocks should be disinfected in all directions to avoid the harm of germs and eggs during grafting.

Litchi grafting

Cutting grafting, splitting grafting and improved grafting are widely used in litchi seedling grafting. At present, the grafting of litchi trees mainly adopts cutting in branch grafting.

1. Cut off the smooth part of litchi rootstock, cut it into inclined planes, and cut it vertically downward at the edge of xylem. The length and width of the incision correspond to the long surface of the scion. One side of the rhizome is open and the upper part of the rhizome is cut off.

2. Choose robust 1-2-year-old litchi branches as scions, requiring litchi branches to be free from pests and diseases, full of growth and full of bud eyes. One end of litchi tree scion retains 1-3 strong buds, and the other end of the scion can be cut into an inclined plane with a length of 1-2 cm.

3. It is best to graft the cut litchi branches on the same day to prevent the litchi branches from drying up. Insert the litchi tree scion into the incision, and the joint can be tied tightly with plastic bags.

The survival rate of litchi after grafting is high after maintenance.

After grafting, litchi seedlings should be regularly checked for survival, and those that have not survived should be supplemented in time. Erase the sprout of rootstock in time. There will be a lot of germination on the rootstock after topping, which will consume nutrients and affect the germination and growth of scions. Erase the sprout of rootstock at any time.

In addition, the nursery should be kept moist before the scion germinates, and attention should be paid to irrigation to prevent drought. Grafted seedlings survive after the aging of the first batch of new shoots, and should be applied with decomposed dilute human and animal manure water, and then diluted fertilizer 1-2 times at each shoot stage.

Pay attention to irrigation and drainage to prevent drought and flood. When the height of litchi seedlings is 30-40 cm, shaping, topping and pruning are carried out, and 3-4 branches are left as backbone branches to cultivate short, dense and compact trees.