露地春芹菜先期抽薹主要发生在越冬和早春芹菜栽培上。由于植株先期抽薹后不再分化叶片，同时花薹生长消耗大量养分，从而可使叶柄产量下降，品质变劣。造成芹菜先期抽薹的原因是：芹菜幼苗期，即３－４片真叶时，遇持续１０－２０天的２－５℃低温，使芹菜通过春化阶段，促进 Early spring celery bolting occurs mainly in winter and early spring celery cultivation. As the early bolting plants no longer differentiate leaves, while flower stalks consume large amounts of nutrients, which can make petiole yield decline, the quality of the worse. Cause Celery bolting reason is: celery seedlings, that is, when 3-4 true leaves, the case of 10-20 days continued to 2-5 ℃ low temperature, so that celery through the vernalization stage, and promote