In winter, many fruit trees have to be pruned. One is to open the light path to let the fruit tree see through the inner chamber and the branches and branches to see the light; the other is to balance the tree vigor and promote the healthy growth of the fruit tree. Recently, Li Shixiang, a villager in Shipan Village, Tiaodeng Town, Dadukou District, Chongqing City, who has many years of experience in planting fruit trees, told the author that winter pruning of fruit trees can increase the yield of fruit trees in the coming year. Taking citrus as an example, the yield per plant can increase by 15-20 kg. . But he reminded that the pruning of fruit trees must be moderate and not excessive. In pruning, pay attention to the following three details.
Do not leave stubble when pruning fruit trees, some fruit farmers will leave stubble inadvertently, and some have small tails on the stubble, which makes the stubble difficult to heal. It is not only easy to run out of water, rain water, and be infested by rotting germs, but also nutrients cannot accumulate here, and finally the stubble will harden and die.
In fact, eliminating stubble is not complicated. Li Shixiang said that for small oblique stubble, just turn the shears upside down and cut it again; when encountering large oblique stubble, use a knife to flatten it. The skin should not be longer than wood, and the skin should be shorter and hug. For the xylem, set aside longer points and seal it with medicine to ensure full healing.
Strictly seal the cutting edge after trimming, and apply sealing and cutting oil in time to protect it to prevent frostbite from causing rot in the next year. However, many fruit farmers only seal the top of the cutting saw during pruning, and do not seal the edges, which will cause black water and rot to occur.
Li Shixiang told the author that the phloem around the cutting saw has been damaged or cracked after shaking and pulling back and forth. Rainwater can easily flow in and bacteria can invade more easily. The correct sealing method is: seal the top and then seal the periphery, moisten the edge cracks with medicine, so that the healing will be faster. If there are cracks in the saw cuts, they must be sealed again, and the sealing of the saw cuts should be checked at any time until they are healed.
Protecting scars The weather is cold and fruit trees are prone to rot disease. Generally, the trunk can be painted white to resist the large temperature difference between day and night and prevent the occurrence of diseases.
When pruning in winter, scrape the upturned bark and necrotic tissue, and cut off the diseased branches. In addition, the scraped dead bark and the pruned diseased branches should be taken out of the orchard and burned or buried deeply, and then the fruit trees should be sprayed with 3 to 5 degrees lime sulphur mixture or Kufuling for disinfection.
Li Shixiang said that after disinfecting the treated scars, the scars should be sealed and the xylem should not be exposed. But it can't be wrapped with plastic paper for a long time, which will cause the xylem to mold and rot.
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