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1、选用抗病品种:选用抗烟草花叶病毒耐黄瓜花叶病毒一代杂种如毛粉802,高抗烟草花叶病毒的佳粉10号等品种。 2、培育壮苗:(1)种子处理及上壤消毒:播前先用清水浸泡4个小时,捞出后再放入10％磷酸三钠液中浸种20分钟,再捞出用清水反复冲洗干净后催芽播种。育苗的土壤可用大田种植谷物的土壤。用菜园土时要进行土壤消毒,每平方米苗床均匀喷洒25—30毫升甲醛液,盖膜熏蒸2—3天,然后去膜,使甲醛气体全部发挥掉才能播种。(2)清除病虫源:番茄拔秧后,及时清除遗留的病株残体,并深翻,加速病残体分解。(3)苗床设置:育苗地选地势较高,通风较好并与春番茄,青椒等地有一定距离的地块。(4)加强苗期管理:定植时要淘汰病苗,弱苗。二
1, the selection of resistant varieties: anti-tobacco mosaic virus selection of first-generation hybrid cucumber mosaic virus such as hair powder 802, high anti-tobacco mosaic virus powder No. 10 and other varieties. 2, nurturing strong seedlings: (1) seed treatment and soil disinfection: sowing with water for 4 hours before sowing, remove and then add 10% trisodium phosphate solution for 20 minutes, then remove repeatedly rinse with water Germination after germination sowing. Nursery soil available to grow cereal soil in the field. To soil disinfection with garden soil, per square meter of seedbed evenly spray 25-30 ml of formaldehyde solution, cover film fumigation 2-3 days, and then to the membrane, the formaldehyde gas to play all out in order to sow. (2) remove the source of pests: tomato seedling, the timely removal of remnants of the diseased plant debris, and deep plowing to speed up the decomposition of diseased bodies. (3) seedbed settings: seedling selection topography, ventilation is good and with spring tomato, green pepper and other places have a certain distance from the land. (4) Strengthen the seedling management: When planting, we must eliminate the sick seedlings and weak seedlings. two