Key points of management techniques after fruit tree grafting

1, timely inspection and replacement: 15 to 25 days after grafting in early spring, 7 days after grafting in summer, and 10 days after autumn, the survival rate can be checked. Blackening or browning of the scion or buds indicates that the grafting was unsuccessful. If the survival rate is too low, it can be replenished in time.

2. Apply sufficient fertilizer to the water to accelerate the graft growth: after the fruit tree is grafted, the size of the tree body is 5~25 kg, and the diammonium phosphate is 0.50~2.50 kg. Adopting a circular or star fertilization method, the depth of the ditch is 20 to 40 cm, and the lateral roots of some aging can be removed by combining the root scissors. After fertilizing, pour enough water to keep the root plate moist. Fertilization can also be carried out in advance, that is, the spring grafting is improved in the autumn of last year, and the summer is applied in the early spring.

3, strengthen the young shoots to prevent the wind blowing: grafting after grafting begins to grow, slightly loosen the dressing, but do not completely loosen, when the young shoots grow to 10 cm long, take some sticks or crop straw, half Fixed on the trunk or main branch, half surrounded by young branches, and wrapped with a string to protect the young branches. After the young branches are fixed firmly, the knives are used to cut the dressings at the time of grafting to facilitate their growth.

4. Remove the anvil tree sprouts in time to reduce the nutrient competition for grafting, but the fruit trees facing the patch should be treated differently: one case is that the grafting in the previous season is unsuccessful, and the fruit trees that need to be supplemented in the next season should be allowed to The anvil tree grows and grows; the other case is that the summer grafting is unsuccessful, and the effect of the patch on the roots of the fruit trees is too large. The addition should be abandoned and the rootstocks should be allowed to grow.

5, grafting and pruning: the grafting of the over-growth at the appropriate height "topping" can promote the secondary shoot germination and growth; for the densely growing prolonged branches and competing branches, using the branches, traction and other methods Handling, no or less use of short cut, thinning and trimming methods.

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