Causes and control methods of dry heartburn in Chinese cabbage

Chinese cabbage drinking fountain can be planted, and it is one of the vegetables that rural areas and vegetable farmers like to grow. It has high survival rate and high yield, but it is extremely prone to a disease called dry heartburn in the process of planting. This disease seriously affects the yield and quality of Chinese cabbage. Many people do not know the causes and prevention methods of dry heartburn of Chinese cabbage. Here is a brief introduction for you.

1. Symptoms of dry heartburn of Chinese cabbage

Chinese cabbage dry heartburn, also known as peeling rotten, the disease is no abnormal appearance, internal globular leaves metamorphosed, can not be eaten, mainly in the rosette stage, the symptoms are heart leaf edge drying, inward curling, growth inhibition. At the initial stage of heading, the edge of the leaf was flooded, then turned yellow translucent to yellowish brown scorched, and there was no abnormality after heading.

2. the cause of dry heartburn of Chinese cabbage.

There are many reasons for dry heartburn of Chinese cabbage, mostly due to soil reasons and lack of calcium, such as low content of soil organic matter and excessive application of chemical fertilizer, resulting in high soil concentration, which will affect the absorption of calcium by roots. Or excessive application of nitrogen fertilizer will lead to calcium deficiency in a high-temperature and dry environment, which will lead to core rot. Calcium deficiency or soil acidification and soil moisture ups and downs will also affect the root absorption of calcium, in addition, the serious lack of active manganese in calcareous soil in the north will also cause dry burning heart disease of Chinese cabbage.

3. Prevention and control methods

First of all, we should select cabbage varieties with strong disease resistance, re-apply organic fertilizer, increase soil temperature, and watering appropriately, especially in the case of simultaneous application of fertilizer and water, we must pay attention to the concentration, so as to avoid dry heartburn caused by excessive concentration. In the growing period, it is necessary to increase the application of organic fertilizer, reasonably match phosphorus and potassium fertilizer and micro-fertilizer, and apply less single nitrogen fertilizer. In the heading period, foliar fertilizer containing calcium can be sprayed to the heart leaf, which is best sprayed every 10 days or so, which can replenish plant calcium and prevent dry heartburn.

The above is the introduction of the causes and control methods of dry heartburn of Chinese cabbage. I hope it can help you. If you want to know more about it, please follow us.