南方农业学报
南方農業學報
남방농업학보
GUANGXI AGRICULTURAL SCIENCES
2014年
3期
406-409
,共4页
黄永禄%刘晓亮%唐文伟%曾东强
黃永祿%劉曉亮%唐文偉%曾東彊
황영록%류효량%당문위%증동강
薇甘菊%2,4-滴%微乳剂%防治效果
薇甘菊%2,4-滴%微乳劑%防治效果
미감국%2,4-적%미유제%방치효과
Mikania micrantha%2,4-D%micro-emulsion%control effect
【目的】明确18%2,4-滴微乳剂对非耕地薇甘菊的防治效果,为其推广应用提供科学依据。【方法】设18%2,4-滴微乳剂540.0、324.0、202.5和162.0 g a.i./ha 4个处理,与常用化学除草剂41%草甘膦异丙胺盐水剂推荐剂量1845.0 g a.i./ha及空白对照处理进行比较,在薇甘菊生长旺期施药,并于药前和药后15、30 d调查薇甘菊覆盖度,药后45 d调查薇甘菊覆盖度和鲜重,计算薇甘菊覆盖度防效及鲜重防效,2009、2010年两年重复试验。【结果】18%2,4-滴微乳剂在供试剂量下对薇甘菊有良好的防除效果,其中162.0~202.5 g a.i./ha剂量处理后45 d对薇甘菊覆盖度防效达97.74%~100.00%,鲜重防效达98.80%~100.00%,显著高于对照药剂处理的防效。【结论】18%2,4-滴微乳剂可有效防除非耕地薇甘菊,推荐使用剂量为162.0~202.5 g a.i./ha。
【目的】明確18%2,4-滴微乳劑對非耕地薇甘菊的防治效果,為其推廣應用提供科學依據。【方法】設18%2,4-滴微乳劑540.0、324.0、202.5和162.0 g a.i./ha 4箇處理,與常用化學除草劑41%草甘膦異丙胺鹽水劑推薦劑量1845.0 g a.i./ha及空白對照處理進行比較,在薇甘菊生長旺期施藥,併于藥前和藥後15、30 d調查薇甘菊覆蓋度,藥後45 d調查薇甘菊覆蓋度和鮮重,計算薇甘菊覆蓋度防效及鮮重防效,2009、2010年兩年重複試驗。【結果】18%2,4-滴微乳劑在供試劑量下對薇甘菊有良好的防除效果,其中162.0~202.5 g a.i./ha劑量處理後45 d對薇甘菊覆蓋度防效達97.74%~100.00%,鮮重防效達98.80%~100.00%,顯著高于對照藥劑處理的防效。【結論】18%2,4-滴微乳劑可有效防除非耕地薇甘菊,推薦使用劑量為162.0~202.5 g a.i./ha。
【목적】명학18%2,4-적미유제대비경지미감국적방치효과,위기추엄응용제공과학의거。【방법】설18%2,4-적미유제540.0、324.0、202.5화162.0 g a.i./ha 4개처리,여상용화학제초제41%초감련이병알염수제추천제량1845.0 g a.i./ha급공백대조처리진행비교,재미감국생장왕기시약,병우약전화약후15、30 d조사미감국복개도,약후45 d조사미감국복개도화선중,계산미감국복개도방효급선중방효,2009、2010년량년중복시험。【결과】18%2,4-적미유제재공시제량하대미감국유량호적방제효과,기중162.0~202.5 g a.i./ha제량처리후45 d대미감국복개도방효체97.74%~100.00%,선중방효체98.80%~100.00%,현저고우대조약제처리적방효。【결론】18%2,4-적미유제가유효방제비경지미감국,추천사용제량위162.0~202.5 g a.i./ha。
[Objective]The control effect of 18%2,4-D micro-emulsion(ME) against Mikania micrantha in non-cultivated land was determined to provide references for its application and promotion. [Method]Four different treatments of 18%2,4-D ME (540.0, 324.0, 202.5 and 162.0 g a.i./ha) were sprayed on Mikania micrantha leaves at peak growth stage to compare their control effects with recommended levels of common chemical herbicide (glyphosate isopropyl amine salt aqueous solution 1845.0 g a.i./ha) and the control . The coverage of Mikania micrantha before and after spraying 15 and 30 days, and the cover-age and fresh weight of Mikania micrantha after spraying 45 days were measured to calculate the control efficiency. The experi-ment was repeated for two years (2009 and 2010). [Result]All the dosages of 18% 2,4-D ME in the experiments showed great control effects on Mikania micrantha. The control effects of 162.0-202.5 g a.i./ha of 18%2,4-D ME on coverage and fresh weight of M. micrantha in non-cultivated land were 97.74%-100.00%and 98.80%-100.00%on 45th day, which were signifi-cantly higher than that of the control herbicide. [Conclusion]Due to good control effect, 162.0-202.5 g a.i./ha of 18%2,4-D ME could be recommended to control Mikania micrantha in non-cultivated land.