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早春蔬菜苗床病害常见的有:辣椒炭疽病、茄子早疫病、黄瓜炭疽病及猝倒病、立枯病、灰霉病等,综合防治以上病害,将其彻底消灭在萌芽状态,是夺取蔬菜生产丰收高效的关键一环,应主要做好以下四个方面。一、做好床土消毒育苗时最好采用无病床土,苗床床土最常用的消毒方法有:1.播种前14天,将床土耙松,每平方米苗床用福尔马林50毫升,加水5公斤浇在床土上,再用旧麻袋覆盖4-6天,揭开覆盖物经14天左右,药物挥发后方可播种;2.每平方米苗床用50%多菌灵或50%托布津10克与半干细土拌匀,在播种前将1/3药土撤在床面上作为垫土,将种子播在上面,剩余的2/3作为覆土,地壤表面应酌量洒水,使表土保持湿润,以免过干,产生药害。二、做好种子消毒用55℃温水浸种15分钟,然后用清水洗净晾干,可杀死粘附在种子表面上的
Early spring vegetable seedbed disease common are: pepper anthrax, early blight of eggplant, cucumber anthracnose and damping off disease, blight, gray mold disease, comprehensive prevention and treatment of the above diseases, to completely eliminate it in the bud, is to seize the vegetable production Harvest and efficient a key link, should mainly do the following four aspects. First, to do bed soil disinfection Nursery is best to use bed-free soil, seedbed Bed soil most commonly used disinfection methods are: 1. 14 days before sowing, bed soil harrow pine, square meters per square meter with formalin 50 ml , Add water 5 kg poured on the bed soil, and then covered with old sacks 4-6 days, opened the cover after about 14 days, the drug can be sown before sowing; 2 per square meter seedbed with 50% carbendazim or 50% Topsoe 10 grams and semi-fine mix well, before planting in the 1/3 soil will be withdrawn from the bed as a cushion, the seeds sown in the above, the remaining 2/3 as cover soil, the soil surface should be sprinkled water , So that the topsoil to keep moist, so as not to over-dry, resulting in injury. Second, do a good job of seed disinfection soaked with 55 ℃ warm water for 15 minutes, then washed with water to dry, can kill the adhesion on the seed surface