高粱除草药剂的筛选  

Preemergence and Postemergence Herbicides Screening in Sorghum

作　　者：李鹤鹏[1] 杨广益[1] 

机构地区：[1]黑龙江省农业科学院绥化分院,黑龙江绥化152052

出　　处：《黑龙江农业科学》2010年第12期65-67,共3页Heilongjiang Agricultural Sciences

摘　　要：针对高粱苗前苗后除草剂难以选择,缺少有效化学除草手段的现状,2010年在黑龙江省农业科学院绥化分院的管家科技园、郎家寨两处的试验地分别进行了高粱播后苗前封闭及苗后茎叶处理化学除草剂的筛选。结果表明:苗前使用异丙甲草胺+二甲戊灵封闭,对杂草的防效最高可达89.50%,对高粱出苗及生长无明显副作用;苗前使用异丙甲草胺+莠去津封闭,苗后使用莠去津对高粱无副作用,对杂草具有较好的抑制作用;苗后使用二氯喹啉酸或二甲.灭草松茎叶处理,对杂草的防效分别达86.40%和81.37%,对高粱生长无明显副作用。It was difficult to select effective herbicides in preemergence and postemergence periods in sorghum.Because of the situation of lacking of effective method to control the weeds,the herbicides screening test was carried out in Guanjia techno park and Langjiazhai of Suihua Branch of Heilongjiang Academy of Agricultural Sciences in 2010 to give farmers some suggestions on herbicides selection.The results showed that the control efficiency on weeds was up to 89.50% through the closed soil treatment with metolachlor and pendimethalin in preemergence period,and there was no obvious adverse effect on the emergence and growth of sorghum.Metolachlor and atrazine used in preemergence period and atrazine used in postemergence period had high inhibition on weeds.The control efficiency of quinclorac and 7.5% MCPA and 30% bentazone used in postemergence period in stem treatment on weeds was up to 86.40% and 81.37%,respectively,and there was no obvious adverse effect on sorghum growth.

关 键 词：高粱 药剂筛选 苗前 苗后 

分 类 号：S451.2[农业科学—植物保护]