The symptoms of celery rotten heart are: dark green in the outer leaves, dry yellow in the heart, and decay. The seedling stage occurs more seriously. Then the symptoms and prevention plan of celery rotten heart? Let's share it with you.
Symptoms and control schemes of celery rotten heart:
1. Seedling period and time seedlings, reasonable watering, combined with root application for root irrigation, can promote the development of celery root system and plant robust.
2, balanced fertilization, foliar application of calcium, boron fertilizer plus vegetable strong stem spirit, can promote stalk stems thick, leaf hypertrophy, plant flour; water and fertilizer supply is sufficient, can effectively improve the celery resistance to disasters. At the same time, the ambient temperature and soil moisture are controlled to prevent physiological calcium deficiency in celery.
3. Spraying targeted fungicides in a timely manner to prevent soft rot and sclerotinia. At the same time, with the application of new high-fat film spraying, it can control the volatile and elegant flow of pesticides, prevent the rainwater from scouring, and improve the control effect many times.
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