芹菜生理障碍在芹菜生长过程中经常遇到，它不仅影响芹菜的产量，也严重影响芹菜的品质和效益。生产中常见的芹菜生理障碍有烧心、空心和叶柄开裂等。１烧心症状：开始时心叶叶脉间变褐，以后叶缘细胞逐渐死亡。呈黑褐色。生育前期较少出现，一般主要发生在１１～１２片叶时。 Celery physiological disorders often encountered in the celery growth process, it not only affects celery production, but also seriously affect the celery quality and effectiveness. Common celery physiological production of heartburn, hollow and cracked petiole. 1 heartburn Symptoms: at the beginning of the heart leaf between brown, after the edge of the cells gradually died. Dark brown. Few pre-term emergence, usually occurs mainly in 11 to 12 leaves.