枯草芽胞杆菌ZWZ-19可分散油悬浮剂的研制及对马铃薯腐烂茎线虫病的防治效果
Development and application of Bacillus subtilis ZWZ-19 dispersible oil suspension agent for Ditylenchus destructor
车婷玉 1李猛 1赵远征 2杨帆 1王振 1王东 1周洪友1
作者信息
- 1. 内蒙古农业大学,生物农药创制与资源利用自治区高等学校重点实验室,呼和浩特 010018
- 2. 内蒙古农业大学,生物农药创制与资源利用自治区高等学校重点实验室,呼和浩特 010018;内蒙古自治区农牧业科学院植物保护研究所,呼和浩特 010031
- 折叠
摘要
为开发马铃薯腐烂茎线虫病的防治药剂,本研究利用前期获得的枯草芽胞杆菌ZWZ-19,制备一种可用于马铃薯拌种的可分散油悬浮剂.通过测定不同乳化剂对制剂稳定性的影响,结合制剂的悬浮率、倾倒性、粒径、静态表面张力及动态接触角等指标,筛选出ZWZ-19可分散油悬浮剂的最佳配方为:20％枯草芽胞杆菌母药、15％NP-10、3％有机土、0.5％乙二醇、3％白炭黑,大豆油补足至100％.该制剂热储前后悬浮率均高于95％,且有效成分分解率低于5％.田间试验结果表明,ZWZ-19可分散油悬浮剂对马铃薯腐烂茎线虫病的防效为69.61％,增产效果达到16.38％.
Abstract
To develop a control agent for Ditylenchus destructor,Bacillus subtilis ZWZ-19,obtained in our previous study was used to prepare a dispersible oil suspension formulation for seed-dressing of potatoes.By testing the effects of different emulsifiers on the stability of the formulation,combining with suspension rate,pourability,particle size,static surface tension,and dynamic contact angle,the optimal formula for the ZWZ-19 dispersible oil suspension was selected:20％Bacillus subtilis mother liquor,15％NP-10,3％OMMT,0.5％ethylene glycol,3％white carbon black,and soybean oil to make up 100％.The suspension rate of the formulation was above 95％before and after thermal storage,and the decomposition rate of the active ingredient was less than 5％.Field test results showed that the ZWZ-19 dispersible oil suspension had a control efficacy of 69.61％against stem rot nematode disease caused by Ditylenchus destructor,with a yield increase effect of 16.38％.
关键词
马铃薯/腐烂茎线虫/枯草芽胞杆菌/可分散油悬浮剂/防效Key words
potato/Ditylenchus destructor/Bacillus subtilis/dispersible oil suspension agent/preventive effect引用本文复制引用
出版年
2024
NETL
NSTL
万方数据