What is the disease of celery seedling heart rot and root rot? How to treat celery seedling heart rot

Celery "heart rot" is a common phenomenon in the growth process of celery, especially in the seedling stage. The main surface is that the inner leaves of the celery appear dry, yellow and rotten. Once the celery heart rots, it will lead to a decrease in celery yield. In severe cases, it will cause the entire celery plant to wither and die, causing farmers to suffer losses in vain. So, what causes celery heart rot?

What is the disease of celery seedlings rotten heart and root?

Celery seedling heart rot may be celery heartburn. Sometimes celery stem rot is similar if it is concentrated at the base of the celery. Generally speaking, the cause needs to be analyzed based on the symptoms. Celery heartburn is sometimes caused by soil quality problems, such as acidity. The more acidic the soil, the greater the possibility of celery heartburn.

Celery is a stem and leaf vegetable. The use of nitrogen fertilizer can greatly improve the quality of celery stems and leaves. However, if too much nitrogen fertilizer is used during the celery planting process, it will affect the celery's absorption of trace element fertilizers such as calcium fertilizer or magnesium fertilizer. If the celery lacks calcium, it can easily lead to symptoms of celery heart rot. During the celery planting process, try to apply fertilizers evenly to avoid calcium fertilizer deficiency.

How to treat celery seedling heart rot

1. Improper watering

Water is the key factor to maintain the growth of celery in the seedling stage. When there is insufficient water in the soil, the celery will be dehydrated and its growth will be affected. When there is too much water in the soil, the air permeability of the soil will be reduced, making it impossible for the celery to absorb nutrients, and a large number of pathogens will grow in the soil, threatening the growth of the celery. Therefore, when we water the celery, we must water it when it is dry and wet, avoiding too dry or too wet.

2. Improper fertilization

If the celery core rots, it is likely due to a lack of boron or calcium in the soil, or it may be due to the celery's inability to absorb calcium and boron in the soil. Under normal circumstances, the soil contains more or less calcium and boron, and when the nitrogen and potassium fertilizer content in the soil is too high, it will hinder the celery's absorption of calcium and boron fertilizers. Over time, it will cause the celery core to rot. Therefore, when the celery core rots, we can spray the celery with fertilizers such as calcium chloride and calcium nitrate. Generally speaking, the effect is more obvious when calcium and boron are supplemented at the same time.

3. Diseases

Soft rot and black rot are both common diseases of celery, both of which can cause celery to rot. These two diseases lurk in the soil and can also spread with seeds and water. Therefore, when we breed celery, we must disinfect the soil and seeds, and when watering the celery, we must also use pollution-free or sterilized water sources. When celery is found to have diseased plants, you can spray chlorothalonil for prevention and treatment.

How many days does celery grow?

This depends on the climate. Celery prefers cool and mild climates. It is a semi-cold-resistant vegetable and cannot tolerate high temperatures. Celery can be planted in spring and autumn. Autumn is a good season for celery growth and also a period with a relatively long growth cycle.

In spring, seeding and seedling cultivation are usually carried out from January to February, transplanting is carried out from March to April, and harvesting is carried out from the end of May to mid-July. In autumn, seeding and seedling cultivation are usually carried out from mid-June to early July, spring planting is carried out from early August to mid-September, and harvesting is carried out from October to December. Generally, seeding and seedling cultivation in protected areas are carried out from early to mid-July to early August, transplanting is carried out in improved sunbeds or solar greenhouses from September to November, and harvesting is carried out from January to March. Therefore, the growth cycle of celery is about 80-90 days.

The most difficult part of growing celery is that it is difficult to grow seedlings. You should be more cautious in choosing the terrain, and choose a high terrain with convenient drainage and irrigation, loose soil, and fertile sandy loam for growing seedlings. Apply enough well-rotted base fertilizer, and apply more circle fertilizer to make the soil loose.