十四种化学除草剂对沧州地区苜蓿地杂草防效试验  

Effects of 14 chemical herbicides on weed control of alfalfa in Cangzhou

作　　者：戚志强[1] 胡跃高[1] 曾昭海[1] 郜瑞路[1] 

机构地区：[1]中国农业大学农学与生物技术学院草业工程研究中心,北京100094

出　　处：《草原与草坪》2005年第6期41-44,共4页Grassland and Turf

基　　金：农业部农业科技跨越计划项目(2000-22)

摘　　要：选用14种除草剂对沧州地区苜蓿(Medicago sativa)地苗期的杂草进行了防除试验。对苜蓿株高,产量及杂草量的综合调查分析结果表明,高效盖草能、精禾草克、精稳杀得、拿捕净对禾本科杂草的防效为100%,苜蓿保系列各剂型在杂草株龄较大的情况下综合表现较好,其中苜蓿保2%EC将杂草率从80.6%(CK)降到了36.5%,苜蓿增产40.6%。沧州地区春播苜蓿幼苗期单独使用禾本科除草剂或阔叶草除草剂效果不理想。Effects of 14 herbicides were studied in alfalfa（Medicago sativa） pasture. Based on the height and yield of alfalfa after herbicide application,and effect of weed control, the result indicated that haloxyfop-R-methyl, fluazifop-p-butyl, quizalofop-p-ethyl and sethoxydim could control weeds by 100 %. Imazethapyr shown a good control effect for larger weeds, and out of them, the imazethapyr EC （2%） was the best, which reduced weed rate from 80.6% （CK）to 36.5% ,and increased alfalfa yield by 40.2%. Solo use of herbicides for gramineous weeds or broadleaf weeds could not achieve satisfactory effect when alfalfa was in seedling stage in Cangzhou.

关 键 词：苜蓿 除草剂 杂草防除 幼苗期 

分 类 号：S451.2[农业科学—植物保护]