南方农业学报2012，Vol.43Issue(4)：454-457,4.DOI:10.3969/j:issn.2095-1191.2012.04.454
70％噻虫嗪WS对水稻壮苗及稻飞虱的防治效果
Effects of 70％ thiamethoxam WS on strengthening rice seedling and controlling planthopper Nilaparvata lugens (Stal)
摘要
Abstract
[Objective]Effect of different doses of thiamethoxam WS(70%) on strengthening rice seedling and controlling planthopper was studied in order to screen its best dose and treatment method on rice seed. [Method]Germination rate, root length, leaf width, rool number of rice seedlings and preventive effects of three different doses of thiamethoxam WS (20, 40 and 80 g for every 100 kg seeds) using two different methods (coating first and presoaking, presoaking first and coaling) were investigated. [ Result ]The most satisfying combination was found as treatment of 40 g 70% thiamethoxam WS every 100 kg seeds (coaled first and then presoaked). The germination percentage (indoor) was stabilized at 96% after 4 days. The length of rice root was 4.93 cm after 30 days. Ten days later, leaf width of the top five leaves was found apparently larger than the control. The average number of root was 54 on the 45th day. For the prevention of the planthopper, the control effect reached 96% on the 15th, 30th and 45th day. [Conclusion]The application of 40 g 70% thiamethoxam WS every 100 kg seeds (coated first and then presoaked) was recommended to get the best controlling effects at rice production.关键词
70％噻虫嗪WS/种衣剂/水稻秧苗/壮苗效果/稻飞虱/防治效果Key words
70% thiamethoxam WS/ seed coating agent/ rice seedling/ vigorous seedling/ planthopper/ prevention effect分类
农业科技引用本文复制引用
付佑胜,赵桂东,刘伟中..70％噻虫嗪WS对水稻壮苗及稻飞虱的防治效果[J].南方农业学报,2012,43(4):454-457,4.基金项目
淮安市科技计划项目(SN1020) （SN1020）
先正达(中国)投资有限公司科研项目(SCIC20080008) （中国）
