How to prevent dry cracking of Chinese cabbage

Cabbage dry heart disease is a physiological disease caused by calcium deficiency. Calcium supplementation is the most common and effective prevention and treatment measure.
Pre-ballooning is the key period of calcium supplementation in the leaves. Production generally starts at about 45 days after sowing, and calcium supplementation is continued after the sowing to reduce the onset of storage. The calcium supplement of heart leaf is usually 0.7% water calcium chloride plus 50ppm of nicotinic acid. From the end of September, the heart leaf is sprayed every 10 days. The initial use of medicine requires 30 ml of liquid, and as the cabbage grows, The amount of medication is gradually increased, and it is generally sprayed 3-5 times, and the control effect can reach 90%. It is the most economical, safe and effective method to prevent and cure dry heart disease of Chinese cabbage by this method.

Brief Introduction:

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