秋番茄生长发育遇上高温干旱,病毒病极易发生,从而造成减产。怎样才能适期晚播,低温育苗,预防病毒病发生呢?如下方法可使秋番茄无病毒壮苗培育好,使病毒病少发生或不发生,从而保证秋番茄丰产,增加经济效益。具体操作:把育苗时间推迟到7月中旬之后。种子浸后,装入纱布袋,吊入井内,悬置于水面(不可触到井壁)。待80%的种子露白,即可进行播种。播种后,育苗床上搭凉棚,每日上午11点至下午3点前遮荫,下大雨时用塑料薄膜防雨。如此可以大大缩短育苗期的高温天数。用此法育苗,因播种较晚,后期果实成熟自然相应地推迟,因此要采取早打顶,只留两穗果,并用乙烯利催熟等措施相配合为宜。 Autumn tomato growth and development in the face of high temperature and drought, viral diseases prone to occur, resulting in reduced production. How to sow the late evening, low temperature seedling, prevention of virus disease? The following method can make autumn tomato strong seedlings without virus breeding, so that less or no virus disease occurs, so as to ensure the autumn tomato yield and increase economic efficiency. Specific operation: the nursery time postponed to mid-July. After the seeds are soaked, they are put into the gauze bag, hung into the well and suspended from the water (not touching the wall of the well). 80% of the seeds to be exposed to the white, you can sow. After sowing, nursery bed to take the pergola, daily from 11 o’clock in the morning until 3 o’clock in the afternoon shade, under the rain with plastic film. This can greatly reduce the number of breeding hot days. Seedling by this method, due to sowing later, the latter part of the natural fruit postponed correspondingly mature, it is necessary to take the early topping, leaving only two spikes, and ethephon ripening measures such as appropriate.