育苗工作的好坏,对春播蔬菜生产起着决定性的作用。然而,蔬菜苗期病害种类多,发病原因也甚为复杂,在育苗过程中,稍不注意科学管理,就会造成大量死苗、缺苗。安徽省凡昌县蔬菜产区的菜农,历年来的育苗期防病的经验,归纳起来,关键要“把好四关”。 一、种子处理关。有些病原物如菌核病中的菌核、菟丝子的种子等时常混杂在种子里面,这些最好通过风选、水选或筛选 Nursery work is good or bad, the spring sowing vegetables play a decisive role. However, the variety of vegetable seedling disease, the cause is also very complicated, in the nursery process, a little less attention to scientific management, it will result in a large number of dead seedlings, lack of seedlings. Fanchang vegetable production areas in Anhui Province farmers, over the years of nursery disease prevention experience, summed up, the key to “a good four off.” First, the seed handling off. Some pathogens such as Sclerotinia sclerotiorum, seeds of dodder, etc. often mixed in the seeds inside, these are best through the wind, water or screening