(一) 高温季节芹菜怎样育苗? 芹菜有特殊香气,是上海郊区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。上海地区芹菜以秋、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,促使其早出苗,生长快, (A) hot season celery how nursery? Celery has a special aroma, Shanghai suburbs cultivation of more vegetables. It enjoys a cool climate, but seedlings can tolerate lower and higher temperatures. Celery in Shanghai in autumn and winter cultivation-based, generally in early July to mid-August seeding, when positive hot season, while celery seeds small, emergence difficulties, seedling growth is also slow. Therefore, master seedling technology, prompting its early emergence, rapid growth,