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常见的幼苗侵染性病害有猝倒病、立枯病、叶斑病、炭疽病等这些病往往会在短期内造成苗木大量死亡,给苗农带来很大损失。现介绍几种综合防治措施。一、选好圃地。应选水源较好而地势较高的轻粘壤土或沙壤土作圃地,坚持轮作制,不在同一块圃地连续培育同一种苗术,苗圃土壤要事先消毒。①福尔马林消毒。每平方米苗圃用福尔马林50毫升加水10公斤均匀喷洒地表,然后用塑
Common seedling infestation disease damping-off disease, blight, leaf spot, anthracnose and other diseases tend to cause a large number of seedlings died in the short term, to bring serious losses Miao farmers. Now introduce several comprehensive prevention and treatment measures. First, choose a good garden. Should choose the water source is better and the higher ground light clay loam or sandy loam as a land, adhere to the rotation system, not in the same nursery continuous cultivation of the same seedlings, nursery soil to be disinfected. ① formalin disinfection. 50 square meters of formalin per square meter of nursery with water 10 kg evenly spray the surface, and then use plastic