What about the dead celery seedlings?

Celery appears frequently on the dinner table and is widely planted all over the country. However, in the process of planting, dead celery seedlings are often encountered in summer. Celery seedlings will seriously affect the growth and development of celery, resulting in a great decline in celery production. It has also seriously affected the economic interests of growers. Today, the editor will talk to you about the prevention and control measures of dead celery seedlings.

1. Soil disinfection

Celery is a plant that avoids continuous cropping. Continuous cropping of celery will lead to diseases and insect pests in the second year, seriously affecting the yield and quality. Disinfect the soil with various chemicals before sowing. For example, formalin can be used to rake the soil loose with a hoe 15-20 days before sowing. Then use formalin to mix the water evenly with the soil, and after stirring, cover the soil with a film. After a week, you can uncover the film, continue to rake the soil, and sow seeds half a month later.

2. Seed treatment

When selecting seeds, it is necessary to select disease-free seeds or sow them in areas where diseases have not occurred. If it is not a disease-free seed, it can be selected with salt water to bubble out the sclerotia in the seed. When there is a foreign body on the water surface, it is the sclerotia of the seed. At this time, the seeds will be pulled out and washed with water and air-dried for sowing, so that Sclerotinia sclerotiorum of celery can be effectively controlled. You can also soak the seeds in warm water of about 50 degrees and disinfect them with Fumishuang wettable powder to prevent blight and sudden collapse.

3. Field management

Reasonable control of planting density, planting density is too dense will make the field permeability is too poor, resulting in dead seedlings. Seedlings should be immediately after emergence to prevent each other from covering each other. If there is too much water in the field, the water should be discharged in time, and the sick and disabled bodies should be pulled out and brought out of the countryside. When loosening the soil and pulling grass, we should be careful not to hurt the celery root, reduce some artificial damage, turn the soil deeply and disinfect the soil in time after harvest, kill the germs in the soil, and reduce the occurrence of diseases and insect pests.

4. Disease control

Pay attention to celery diseases, celery diseases are generally soft rot, black rot, Sclerotinia sclerotiorum and a series of diseases, mainly prevention, strengthen the inspection and disinfection of seeds. Because the occurrence of diseases is mostly due to fungal diseases, explore the occurrence law and time of diseases, in order to make corresponding preparations in the onset time, diseases are generally directly harmful to the roots, stems and leaves of crops. Resulting in a substantial reduction or even extinction of production.

The above is how to prevent and solve the dead celery seedlings, most of which are caused by improper management of farmers before and after celery sowing. To ensure the nutrition and environment needed for celery growth, more than two years of rotation, so as to prevent the death of celery seedlings.