What are the latest control methods for celery heart rot

Celery heart rot is a common physiological disease in celery cultivation. Its main cause is calcium deficiency in the plant, and in severe cases it causes the heart leaves to rot, seriously affecting the quality and yield of celery. It reduces farmers' income. So how should celery heart rot be controlled? Let's take a look at the detailed introduction.

1. Symptoms of heart rot

Heart rot is also called heart rot disease, and it mainly damages the heart leaf area. When the disease occurs, the growing point of the heart leaf turns brown, then gradually spreads, causing the heart leaf to wither and scorch dry. As the disease develops, the root and stem parts of the celery also die successively. This phenomenon is generally rarely seen in the early growth stage, and mainly occurs when the plant has 11-12 leaves and the heart leaves are growing.

2. Causes of occurrence

This is one of the three major physiological diseases during celery growth. The main cause is calcium deficiency in the plant. The lack of calcium and boron elements in the soil causes the plant to lack these; when the salt concentration in the soil is relatively high, it affects the absorption of calcium by the celery root system; in addition, when the soil is too dry, or when nitrogen fertilizer is applied excessively, it also inhibits the root system's absorption of calcium. All these causes may lead to celery heart rot. After heart rot occurs, if the environment is humid, the heart leaves will be infected and rot.

3. Control methods

Scientific formula fertilization should be adopted, reasonably regulating the content of nitrogen, phosphorus, potassium and other trace elements in the soil to ensure balanced nutrients for the plant. Choose non-saline-alkali land with relatively high and dry terrain for planting. Flood irrigation should not be used. Apply more farmyard manure or organic fertilizer and less chemical fertilizer. Take cooling measures during high temperature periods. During seedling raising, the soil should undergo strict disinfection measures. When the disease occurs, promptly remove diseased leaves or diseased plants, take them out of the field and burn them, spread quicklime on the diseased holes, and spray a low-concentration calcium nitrate solution.

The above is an introduction to the control methods for celery heart rot. I hope it can help you. To learn more related knowledge, please follow us.