6%双氟磺草胺.唑草酮可湿性粉剂防除冬小麦田一年生阔叶杂草效果及安全性  

Control Effect and Security of Florasulam·Carfentrazone 6% Wettable Powder against Annual Broadleaf Weeds in Winter Wheat Field

作　　者：董海焦 李永国[2] 王亚楠 张金林[1] 

机构地区：[1]河北农业大学植物保护学院,河北保定071000 [2]河北农业大学教学实验场,河北保定071000 [3]河北省农业技术推广总站,石家庄050000

出　　处：《农药》2014年第8期608-609,618,共3页Agrochemicals

基　　金：河北省农田杂草防控技术研究与示范(201303022)

摘　　要：【目的】通过田间药效试验明确6％双氟磺草胺·唑草酮可湿性粉剂对冬小麦田一年生阔叶杂草的防治效果和田间推荐使用剂量。【方法】小麦返青后、拔节前，采用茎叶喷雾施药，定期调查杂草防效和对小麦影响。【结果】6％双氟磺草胺·唑草酮可湿性粉剂的田间推荐用量为11．7-13．5ga．i．／hm2。施药28d后对杂草株数总体防效达87．95％-99．87％，鲜质量总体防效达92．26％-99．95％。【结论】6％双氟磺草胺·唑草酮可湿性粉剂能够有效防除冬小麦田一年生阔叶杂草，并对小麦具有较好的安全性。[Aims] Based on the field trials, the efficacy and recommended dosage of florasulam- carfentrazone 6% WP were determined for controlling annual broadleaf weeds in winter wheat field. [Methods] Florasulam· carfentrazone 6% WP was applied using stems-leaves spray at wheat recovering date and then control effect and injure to wheat were investigated regularly. [Results] The recommended dose of florasulam, carfentrazone 6% WP was 11.7-13.5 g a.i./ha. The integrated plant and fresh weight control effects were 87.95-99.87% and 92.26-99.95% on weeds respectively after 28 days after treatment. [Conclusions] Florasulam · carfentrazone 6% WP shows better control on annual broadleaf weeds in winter wheat field and is safe to wheat growth.

关 键 词：双氟磺草胺 唑草酮 冬小麦 一年生阔叶杂草 除草效果 安全性 

分 类 号：S451.221[农业科学—植物保护]