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长江下游棉花苗期以炭疽病为主的根病发生较重,尤以播种较早的地膜棉为突出。一般发病株率40～60％,死苗率7～13％,部分田块造成缺苗断垅。据此,我们于1984年进行田间小区试验。供试棉种为泗棉2号,杀菌剂有25％多菌灵粉剂,40％拌种灵、40％拌种双可湿性粉剂。用三种药剂分别拌种,另设对照,共四个处理。每处理小区0.05亩地,三次重复,顺序排列。棉籽用硫酸脱绒,于4月22～23日进
In the lower reaches of the Yangtze River cotton seedling to anthracnose-based root disease occurred heavier, especially in the earlier sown cotton film as a prominent. The average incidence of plant strains 40 to 60%, dead seedlings rate of 7 to 13%, part of the field caused lack of seedlings break. Accordingly, we conducted a field plot test in 1984. Cotton varieties for testing Simian No. 2, 25% of fungicides carbendazim powder, 40% seed dressing, 40% seed dressing double WP. With three kinds of agents, respectively, seed dressing, another set of control, a total of four treatment. Each treatment area of 0.05 acres of land, three repetitions, in order. Cottonseed with sulfuric acid velvet, in April 22 ~ 23 into