Persimmon Tree Grafting Time and Methods, with Common Care Tips
Abstract: In summer, cut a square bud piece 1.8-2.5 cm long and 1-1.2 cm wide on the scion of the persimmon tree, cut the rootstock bark horizontally according to the length of the grafted bud, make 1 vertical cut on the right side to lift the bark, remove the grafted bud from the scion and insert it, aligning the right-side cuts with each other; then cut away 1 piece of the rootstock bark on the left side of the grafted bud; finally wrap the remaining rootstock bark around the grafted bud and tie it. During the full bloom stage, young fruit stage, and rapid fruit swelling stage, spray Zhuangguodiling 1 time at each stage.
I. Persimmon tree grafting time and methods
1. Square bud grafting method
(1) In summer, cut a square bud piece 1.8-2.5 cm long and 1-1.2 cm wide on the scion of the persimmon tree, generally cutting the rootstock bark horizontally according to the length of the grafted bud.
(2) Then make 1 vertical cut on the right side to lift the bark, remove the grafted bud from the scion and insert it, making the right-side cuts align with each other, cut away 1 piece of the rootstock bark on the left side of the grafted bud, and finally wrap the remaining rootstock bark around the grafted bud and tie it.
2. Bark insertion branch grafting method
(1) Cut off the rootstock at about 10 cm above the ground, then make 1 vertical cut in the bark on 1 side of the cut surface, and cut the lower end of the scion with 2-3 buds into a slanted surface 2.5-3 cm long.
(2) Then cut a short slanted surface 0.6 cm long on the opposite side, insert the long cut surface of the scion toward the xylem of the rootstock into the rootstock bark, and finally tie it tightly with plastic film strips to preserve moisture.
II. Persimmon tree care tips
1. Girdling at flowering stage
(1) When the persimmon tree is undergoing flower bud differentiation, which is the girdling period, use a blunt knife to make a ring cut about 1-2 mm wide at a smooth area of the young bark on the trunk, with the depth reaching the xylem.
(2) Then use a writing brush to dip prepared Cuhuawang No. 2 cream and apply it to the wound, so that the agent fully enters the gap of the cut; generally at an interval of 20-30 days, use the same method at another position for the 2nd time, which helps increase the marketable rate of the persimmon tree.
2. Reasonable summer pruning
(1) During the growth of the persimmon tree, thin out overly dense branches and ineffective branches, leave more branches on the windward side and fewer branches on the leeward side, which helps promote ventilation and light penetration among the plants.
(2) For wounds caused by pruning in general, apply callus antiseptic film in time, which helps protect the growth of healing tissue, avoid infection by rot pathogens, and at the same time can prevent soil and rainwater contamination, prevent freezing, and prevent wound cracking.
3. Thinning flower buds
(1) When 2-4 fruiting branches grow from a fruiting mother branch of the persimmon tree, keep the 3 flower buds in the middle of the first 2 fruiting mother branches, then remove all flower buds on the other fruiting branches, keeping them as reserve branches.
(2) If more than 5 fruiting branches grow from a fruiting mother branch, keep the first 3 fruiting branches to bear fruit, keep the 3 middle flowers on each fruiting mother branch, and then remove all the rest.
4. Ecological regulation
You can choose to spray Zhuangguodiling 1 time each during the full bloom stage, young fruit stage, and rapid fruit swelling stage, which can effectively improve the nutritional status of flowers and fruits, help increase the fruit-setting rate, and at the same time reduce flower and fruit drop.