由于产业结构调整,旱稻种植近年来在江苏大丰市区发展很快,一九九八年全市种植面积仅有几十公顷,一九九九年发展到近200公顷,但面临的病虫草害成为旱稻推广的严重障碍,尤其是草害矛盾极为突出,七十年代该市曾有过种植旱稻的历史,即因为草害严重而未得以推广,九十年后农民虽然在种植方式上有所改进,但病虫草害仍是推广中的障碍,为了解决这一矛盾,一九九九年,笔者在化学防治措施上做了多处调查和试验研究,取得了较为理想的效果。一、恶苗病、纹枯病恶苗病传播途径主要为带菌种子,种子处理是控制恶苗病的重要手段。据笔者试验研究及大面积应用结果表明,使百克浸种对恶苗病控病效果可达96%以上。方法是:播前用25%使百克乳油,1:4000倍液,浸稻种60小时,浸后直接播种。 Due to the adjustment of industrial structure, the cultivation of Upland rice has been developing rapidly in Dafeng, Jiangsu Province in recent years. In 1998, the area planted in the city was only a few dozen hectares and in 1999 it developed to nearly 200 hectares. However, Become a serious obstacle to the promotion of Upland rice, especially the contradictions between grass and herbivores are extremely prominent. In the 1970s, there was a history of Upland rice farming in the city, which was not popularized because of serious grave diseases. Although the farmers tended to grow their crops after 90 years However, in order to solve this contradiction, in 1999, the author made a number of investigations and experimental studies on chemical prevention and control measures and achieved satisfactory results. First, abercrombie deutschland, abercrombie and fitch outlet, nosocomial infection, withered leaf blight The main path for the transmission of nuisance disease with seed, seed treatment is an important means of control of the disease. According to the author’s experimental study and large-area application results show that so that 100 grams of seed soaking disease control effect of up to 96%. Method is: before sowing with 25% so that 100 grams of EC, 1: 4000 times the solution, soaking paddy 60 hours, direct sowing after immersion.