[Objective]The paper was to normalize the application of fenaminosulf in single cropping Zizania latifolia. [Method]Effects of spraying periods,different concentrations and spraying times of fenaminosulf on yield and ...[Objective]The paper was to normalize the application of fenaminosulf in single cropping Zizania latifolia. [Method]Effects of spraying periods,different concentrations and spraying times of fenaminosulf on yield and output value of single cropping Z. latifolia were studied.[Result]In some regions where single cropping Z. latifolia could be harvested twice per year,fenaminosulf significantly promoted formation of swollen gall,and advanced the harvest period for about 50 d. Application of 0.5 g/L（ a.i.） fenaminosulf at 150,160 and 175 d post transplanting promoted swollen gall formation and enhanced the yield of Z. latifolia.In normal single cropping Z. latifolia growing regions,once application of fenaminosulf obviously advanced harvest period and improved yield and benefit of Z. latifolia,but with the increasing frequency of use,yield and benefit of Z. latifolia decreased significantly.[Conclusion]It is recommended that 1.0 g/L（a.i.） fenaminosulf can be applied for just once at 40-60 d post transplanting of Z. latifolia.展开更多
目的:建立测定穿心莲叶中常用的4种农药残留量的方法,更好地控制药材的质量。方法:以灭蚜威为测定内标,样品经乙腈提取,采用Atlantics d C18柱分离,液相色谱-串联质谱联用(LC—MS/MS)方法测定穿心莲药材中常用的4种农药残留量。结果:4...目的:建立测定穿心莲叶中常用的4种农药残留量的方法,更好地控制药材的质量。方法:以灭蚜威为测定内标,样品经乙腈提取,采用Atlantics d C18柱分离,液相色谱-串联质谱联用(LC—MS/MS)方法测定穿心莲药材中常用的4种农药残留量。结果:4种农药检测限在0.003～0.0093 mg·kg-1之间,回收率在83%～112%之间,回收率相对标准偏差均低于6%。结论:方法简便、灵敏、重现性好,能满足同时测定4种农药在穿心莲药材中的残留量。展开更多
基金Supported by Cooperation Project of Zhejiang Academy of Agricultural Sciences and the People's Government of Jinyun County(JY20140002)
文摘[Objective]The paper was to normalize the application of fenaminosulf in single cropping Zizania latifolia. [Method]Effects of spraying periods,different concentrations and spraying times of fenaminosulf on yield and output value of single cropping Z. latifolia were studied.[Result]In some regions where single cropping Z. latifolia could be harvested twice per year,fenaminosulf significantly promoted formation of swollen gall,and advanced the harvest period for about 50 d. Application of 0.5 g/L（ a.i.） fenaminosulf at 150,160 and 175 d post transplanting promoted swollen gall formation and enhanced the yield of Z. latifolia.In normal single cropping Z. latifolia growing regions,once application of fenaminosulf obviously advanced harvest period and improved yield and benefit of Z. latifolia,but with the increasing frequency of use,yield and benefit of Z. latifolia decreased significantly.[Conclusion]It is recommended that 1.0 g/L（a.i.） fenaminosulf can be applied for just once at 40-60 d post transplanting of Z. latifolia.
文摘目的:建立测定穿心莲叶中常用的4种农药残留量的方法,更好地控制药材的质量。方法:以灭蚜威为测定内标,样品经乙腈提取,采用Atlantics d C18柱分离,液相色谱-串联质谱联用(LC—MS/MS)方法测定穿心莲药材中常用的4种农药残留量。结果:4种农药检测限在0.003～0.0093 mg·kg-1之间,回收率在83%～112%之间,回收率相对标准偏差均低于6%。结论:方法简便、灵敏、重现性好,能满足同时测定4种农药在穿心莲药材中的残留量。
