There are two reasons that cause leek to return to the roots: one is that leek is born with ground maggots, which is easy to check. Use a sharp knife to dig the roots of the leek to check whether there are ground maggots at the roots of the leek. If so, immediately fill with medicine such as matrine and pungent. Thion and so on. The second is that the leeks are old and their ability to withstand the cold has decreased. Such leeks need to be paid attention to by growers. If your leeks have been planted for more than 5 years and found that a small portion of the leeks have returned to their roots in the previous year, such leeks will become ill in the second year The shed must be covered before the cold dew. The old leeks should avoid the cold first, and they should be covered when the sunshine time is more than 10 hours, so that the leeks can absorb enough heat to ensure the normal development of leeks.
If the leek reverts to the roots after being covered, first determine the cause and prescribe the right medicine. For old leeks to return to the roots, drugs can also be used to help relieve them, such as gibberellin, polyoxin, phytokines, plant essences, etc., start to spray the medicine when the leeks are seen to return to the root, once every 7 days , Hit 3 times, the leeks will have obvious signs of growth. Although it can't completely catch up with normal leeks, it can basically not pull the hind legs when cutting the leeks, so that it will not grow just out of the ground and the bundle will not be tied.
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