Field management technology of burdock

Burdock, also known as Dalizi, evil, and so on, was widely planted in China after it was introduced from Japan, and its roots can also be made into tea, which is similar in appearance to yam. So, what is the field management technology of burdock? Let's get to know it together.

1. Check and replenish seedlings

Burdock basically emerges about a week after planting, so it is necessary to check the emergence of burdock in the field as soon as possible to see whether all the seedlings in the field are all emerging, then find out the reason for the emergence, and replenish the seedlings in time. Seedling replenishment should be carried out before and after cloudy days or rain, so that the survival rate of burdock replanted will be higher. Finally, it should be noted that the seedling replacement must be completed within seven days. This is convenient for unified management in the later stage.

2. Seedling colonization.

At the same time of replenishing seedlings, it is necessary to observe whether there are places in the field where the seedling length is relatively dense, and if so, it is necessary to keep only two seedlings per plant, and the redundant ones should be pulled out in time, so as not to consume too much nutrients and weaken the fertility of the soil, followed by planting at a distance of 35 to 40 centimeters per behavior and 25 to 30 centimeters per plant.

3. Ploughing and weeding

The growth rate of burdock is relatively slow, so it needs ploughing and weeding when planting, which can give air to the soil, promote the growth of roots, and promote the absorption of burdock nutrients. Under normal planting conditions, burdock needs about four to five times of ploughing and weeding in the whole growth process, and the first one is about three days after planting. After that, we need to carry out scientific ploughing and weeding according to the growth of burdock, and we will control the time of weeding by ourselves.

4. Scientific fertilizer and water

If there is no rain during seedling replenishment, then watering must be carried out in time after seedling replenishment, otherwise the survival rate of the plant will be affected. Secondly, during the whole growth process of burdock, the soil moisture in the field should be kept above 60%. Only in this way can we maintain the moisture needed for the normal growth of burdock. Each watering is mainly based on the dryness and wetness of the soil in the field. Burdock will not be topdressing until the second year after planting, according to the standard of 2,000 jin of organic fertilizer and 30 jin of phosphate fertilizer per mu, spread evenly in the middle of the interval, and then combine with ploughing to turn the fertilizer into the soil. then, when burdock blossoms, some foliar fertilizer can be applied appropriately, which can promote the growth of burdock and ensure the quality of burdock.

5. Pest control

The most common diseases and insect pests of burdock are black spot and aphids. Brown spot is a fungal disease mainly caused by high temperature and high humidity, which mainly harms the stems and leaves of burdock, so we should strengthen water management in the field and apply fertilizer reasonably. to enhance plant immunity, followed by chlorothalonil control, generally need to spray three or four times to cure. Aphids basically run through the whole growth process of burdock, which affects the growth of plants and does great harm to stems and leaves. We can use yellow board to trap and kill, at the same time, we can use aldicarb wettable powder to kill.

These are the key points of burdock field management. I hope it can help the growers.