A few days ago, I told you that leeks have a period of rest time when they arrive in Futian, and leeks are generally not cut during the rest period, the purpose is to raise the root system well, so many friends ask, Futian does not cut leeks, when can it be cut? Again, friends who have planted leeks should know that there are many novices in planting, and the leeks planted are often cut more and more finely, the growth is getting worse and worse, and the yield and quality are getting lower and lower. So when should leeks be cut after the beginning of autumn? How to manage after cutting, let's take a look together.
When are leeks harvested after they rest?
For farmers with experience in planting, most of them do not cut leeks in Futian, and use Futian to raise roots, promote the development of the root system, and wait until the beginning of autumn before cutting. Because Futian not only has a high temperature, but also a lot of rain, although it is also possible to cut leeks in Futian, it will affect the growth in the future, unless it is for selling money, for economic interests, Futian cuts leeks, and takes special measures to rejuvenate after cutting. However, the family planting is the use of conventional management methods, generally do not cut the leeks in Futian, and wait until the beginning of autumn to start harvesting, the time is about August 10, you can harvest. But there is one point, don't cut leeks on rainy days.
A few points to pay attention to after cutting leeks
1. Disinfect first after cutting
Leeks will leave wounds after cutting, and the wounds are susceptible to infection with germs when the temperature is high and the humidity is high. In order to avoid root rot and disease, after cutting the leeks, sprinkle some plant ash on them in time, which can play a role in sterilization and disinfection, and at the same time provide nutrients for the leeks. If there is no plant ash, you can spray it with carbendazim once after cutting the leeks to prevent the occurrence of diseases.
2. Clean up weeds and loose soil in time after cutting leeks
Weeds grow rapidly in summer and autumn, and after cutting leeks, it is necessary to remove all weeds in the leek field in time, which can be combined with soil loosening and fertilization at the same time. Because no matter what the crop, weeds are the hiding place of insects, and too many weeds can cause various insect infestations. Therefore, timely removal of weeds can reduce the occurrence of insect pests, avoid mosquitoes from laying eggs, and avoid weeds and leeks competing for nutrients, creating a suitable growth environment for leeks.
3. Watering and fertilizing
The principle of fertilizing leeks is to apply fertilizer every time they are cut, but whether it is watering or fertilizing, when they are just cut, they can neither be watered nor fertilized. Because the leeks have just been cut and the cut has not yet healed, if you water and fertilize immediately after cutting, it is easy to cause the wound that has not healed to be infected with germs and cause diseases. Therefore, after cutting leeks, generally wait two or three days before watering and fertilizing, and be sure not to water and fertilize too early. Watering should also control the dryness and humidity of the soil, as long as the soil is not too dry, not too wet, and keep it moist.
4. Choose the right fertilizer
Leek is a kind of vegetable that grows in the soil for a long time, and has certain requirements for soil environment and fertility, therefore, when fertilizing leeks, you can't just use chemical fertilizer, and chemical fertilizer alone can only play a temporary role, and after a long time, the soil quality will get worse and worse, and the growth of leeks is not as good as a year. Therefore, every time you fertilize leeks, it is best to use fermented and rotted organic fertilizer, if the organic fertilizer is insufficient, you can properly mix fast-acting nitrogen fertilizer, such as: urea, ammonium sulfate, etc., but do not use chemical fertilizer alone.
After the beginning of autumn, cutting leeks, in addition to the above several management points, there is also a point to pay attention to the prevention and control of pests and diseases, the common pests and diseases of leeks are mainly gray mold and leek maggots, gray mold can be used for pythium, leek maggots can be used to octathion, trichlorfon and other roots.
If the above points are done, the leeks will not grow longer and worse.