不同除草剂组合对水稻杂草防效评价  

Effects of Different Herbicide Combinations on the Weeds in Rice Fields

作　　者：宋伟[1] 李洪林[1] 王小龙[1] 张苗森 吴亚晶[1] 

机构地区：[1]黑龙江省农垦总局建三江农业科研所,黑龙江富锦156300

出　　处：《农药》2015年第1期63-65,共3页Agrochemicals

基　　金："十二五"国家科技支撑计划(2012BAD04B01-03-03);黑龙江省农垦总局科技项目(HNK 125B-07)共同资助

摘　　要：[目的]明确不同除草剂配方组合对水稻生长影响及杂草防除情况。通过比较杂草鲜质量、株防效与水稻产量,分析除草剂配方防除效果。[结果]试验田第1次封闭使用丙炔草酮+吡嘧磺隆、第2次封闭使用丁草胺+吡嘧磺隆对杂草防效最好,禾本科杂草和阔叶杂草株防效分别为83.3%、96.1%,鲜质量防效分别为86.1%、97.9%,显著高于对照。[结论]在寒地水稻种植地区,推荐使用除草剂组合第1次为丙炔草酮、吡嘧磺隆和第2次为吡嘧磺隆、丁草胺。[Aims] The objective of this study was to clarify effects of combinations of different kinds of herbicides on rice growth and weeds control in Northeast China. It can be evaluated weed control effects by comparing weeds fresh weight, efficacy and rice yield. [Results] The results showed that the best herbicides combination was oxadiargul and pyrazosulfuron for the first time and butachlor and pyrazosulfuron for the second time. By comparing with the blank control, the best herbicides combination gave the 83.3% plant control and 86.1% plant flesh weight control on barnyard grass. Moreover, Monochoria＇korsakowii and A lisma orientale plant density control and plant flesh weight control were also the highest （96.1 and 97.9%, respectively） and rice yield in this combination treatment did not decreased significantly. [Conclusions] It was recommended to use the herbicide combination （oxadiargnl ＋ pyrazosulfuron- for the first time and butachlor ＋ pyrazosulfuron for the second time） in the cold region of rice cultivation in Northeast China.

关 键 词：水稻 除草剂 杂草 防效 

分 类 号：S451.21[农业科学—植物保护]