芹菜有特殊香气，故又称“药芹”，是我国栽培面积较多的一种蔬菜。它喜冷凉的气候，但幼苗可以忍受较低和较高的温度。芹菜以秋冬栽培为主，一般在７月上旬－８月中旬播种育苗，这时正值高温季节，而芹菜种子细小，出苗困难，幼苗生长也缓慢。因此掌握育苗技术，促使早出苗， Celery has a special aroma, it is also known as “medicine Qin”, is our cultivation of a more vegetables. It enjoys a cool climate, but seedlings can tolerate lower and higher temperatures. Celery cultivation mainly in autumn and winter, usually in early July - mid-August sowing seedlings, when the hot season, while celery seeds are small, difficult to emergence, seedling growth is also slow. Therefore master seedling technology, prompting early emergence,