1、 选用适宜品种 因苗期高温，秧苗易感病毒病，故应选用较抗病毒病的品种；为延迟供应期，应选用特耐贮藏的品种。目前，秋延后栽培常用的品种是状元、伊丽莎白等。 2、 采取遮阴降温防蚜措施，培育壮苗 宜用营养钵育苗，苗床可设在保留顶部薄膜的棚内（通风良好并能防雨） 1, the selection of suitable varieties due to the high temperature at seedling stage, seedlings susceptible virus disease, it should be used more varieties of anti-virus disease; to delay the supply period, should be used specially resistant varieties. At present, the varieties commonly used after autumn extension are champion, Elizabeth and so on. 2, take shading anti-aphids measures to nurture seedlings should be nutrition bowl nursery, seedbed can be set aside to retain the top of the film shed (well-ventilated and can prevent rain)