Misunderstanding 1: The effect of ringing mouth width is good. In particular, when the main ring was circumcision, some juvenile farmers interpreted the width of the ring as one-tenth of the circumference of the trunk, and considered that the wider the mouth, the better the fruit setting effect. The result did not exceed 3 years, and the strong tree also weakened. The girdling width should be 1/5 to 1/10 of the diameter of the trunk, usually 0.5 to 0.8 cm. The big tree and Wang tree are appropriate widths. The small trees and the weak trees are narrower.
Misunderstanding 2: The best circumcision during the Dragon Boat Festival. Some jujubes, no matter how many jujube flowers have been opened, use the Dragon Boat Festival as a time mark for jujube zapping. As a result, girdling time is not too early or too late, and the effect is greatly reduced. The girdling should be carried out in the early stage of full bloom (30% flower opening when jujube hanging). At this time, the girdling fruit has a long growth period, and the jujube fruit is well developed. The large fruit rate and high-grade jujube are good and the commodity is good. In the early flowering period, the fruits of girdling were large, but the fruit setting rate was low; the fruit was girdling at the end of flowering period, the fruit was small, and the quality was reduced.
Misunderstanding 3: After the ring, it will be fruitful. Some jujube farmers treat girdling as the only means to increase fruit setting rate. After girdling, they wait for fruitful results. In actual fact, especially for Dongzao, the effect of girdling is not very obvious. In the early stage of flowering, the combination of a low concentration of PBO plus a 290 in the open armor was very effective in improving the fruit setting rate and reducing fruit drop and fruit drop. There are also top-dressing fertilizers, water sprays, and flowering bees during the flowering period, all of which are effective measures for jujube tree preservation and fruit protection.
Misunderstanding 4: Roughly circumcision. Some jujubes and agronomists save their lives by using a saw to saw 1-2 rings in the trunk, instead of girdling. As the kerf is damaged and forms a layer, it cannot heal. The bark between the two razor cuts rot in the year and causes dead trees. . Some juvenile farmers even used machetes to chop a few knives around the jujube tree and they did not achieve the effect of girdling. Or circumcision is correct, but the protection of the ring is not carried out, resulting in the irremediation of the ring, the weakening of the tree, or death. The correct method of girdling is: first use a trowel to scrape the old skin around the trunk at the site of girdling, with a width of 1 to 1.5 cm to expose the phloem, and then use a sharp knife to cut a circle around the scraping skin to reach the xylem. In accordance with the girdling width and then cross-cut a circle, the tangent line should be straight, and finally the middle bast can be knocked out. In this way, the width of the ring is uniform, clean and agile. The ring is closed, leaving no residual skin and no hair. The width of the stripping should be based on the tree's diameter, based on 1/10 of the diameter of the trunk. When girdling, notice that the lower edge of the opening is slightly inclined outwards to avoid accumulation of water after the rain. After peeling for 3 to 5 days, 50 to 100 times liquid 50% phoxim or 200 times trichlorfon and other insecticides are sprayed and protected on the ringing mouth and wrapped with paper or plastic film to prevent the sun from drying or Human and animal damage.
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