Shatian Pomelo Grafting Technology

Shatian pomelo trees enter the fruiting stage at the beginning of the season. There are often many orchards that have a large number of fruiting results. Some fruit orchards have little fruiting results. Some trees in the same orchard also have a large number of flowering results, and some trees have few flowering results. In order to change this unbalanced phenomenon, the growth potential of the primary fruit tree is mitigated, and flower bud differentiation and early results are promoted. Young fruit that is dredged from the more fruit-bearing trees or branches can be obtained by grafting young fruit. Immediately grafted onto the overgrown saplings or wang twigs, this will not only reduce the loss of yield caused by thinning, but also balance growth and inhibit the growth of Wang twigs, thus promoting its flower bud differentiation.
The grafting time of young fruit in South China is from late May to mid-June (after the second physiological fruit drop). The grafted objects are young trees with less results. The young trees or fruits without flowering results are not distributed within the canopy. Evenly saplings. Specific operations are as follows: From the excessive results of the Shatian pomelo tree, especially the fruit-intensive or fruit-bearing branches need fruiting branches, select the young fruit grow strong fruit diameter 2-3 cm, from the fruit handle 15-2 cm long Carefully cut; Immediately treated with 500 times thiophanate-methyl, grafted to the grafted tree with less or no result; the spring shoots of the grafted subjects should grow robustly with more than 4 leaves, The tip thickness is in accordance with the stalk roughness of the cut fruit, so that it is convenient for cutting. The spring tip incision is also treated with 500 times thiophanate disinfectant and immediately wrapped in a plastic film. When grafting, young fruit should be reasonably evenly distributed at all positions of the canopy, and the amount of fruit to be fruited should be determined according to the tree vigor. The specific number of young fruit to be grafted should be determined according to the survival rate of 50%.

Management of young fruit after grafting: timely eradicate the sprouting shoots of grafted young fruit trees, and check the survival rate 7-10 days after grafting. Unripe young fruit will fall off on their own, and should be patched once in a timely manner, after grafting two months Can lift the film.

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