“狼毒净”对狼毒的防效  

Control effect of herbicide “Langdujing”on Stellera chanaejasme control

作　　者：景美玲[1,2] 马玉寿[1] 王宏生[1] 李世雄[1] 李苗[1,2] 王彦龙[1] 张金旭 

机构地区：[1]青海省畜牧兽医科学院,青海西宁810016 [2]青海大学三江源区高寒草地生态省部共建教育部重点实验室,青海西宁810016 [3]青海省水利水电研究所,青海西宁810000

出　　处：《草业科学》2016年第7期1324-1331,共8页Pratacultural Science

基　　金：青海省科技支撑计划课题"祁连山退化草地恢复及可持续利用技术集成示范"(2015-SF-129);国家科技支撑计划课题"祁连山天然草地生态系统修复与保护技术集成示范"(2012BAC08B03);科技基础条件平台建设计划项目"青海省适生牧草种植区划及栽培利用技术信息平台建设"(2013-T-Y33)

摘　　要：近年来青海省海北州祁连县境内黑河源区狼毒(Stellera chamaejasme)成倍增长,对家畜的毒害日益严重,为此,于2013年7月选用750、900、1 050 m L·hm-23种不同剂量的"狼毒净"进行了化学防除草地狼毒的试验研究。结果表明,施药当年,不同剂量的"狼毒净"均使狼毒在草地群落中失去优势地位,并对狼毒的株高、盖度、地上生物量有一定的抑制作用。单子叶植物产量提高,但差异不显著(P>0.05),双子叶植物产量显著降低(P<0.05)。施用1 050m L·hm-2剂量的"狼毒净"对狼毒的防效达到94.92%,效果最好。Grassland degeneration leads to extensive spread of Stellera chamaejasme which has endangered domestic animals and becoming more and more seriously in recent years. In order to prevent the spreading of S. chamaejasme,the control effects of Herbicide ＂Langdujing＂on S. chamaejasme were evaluated with three concentrations（ 750,900,1050 m L·hm- 2） in Black River headwater area in July 2013. The results showed that Langdujing spraying with all three concentrations made S. chamaejasme lost its dominant position and inhibited the height,coverage and above-ground biomass of S. chamaejasme. The yields of monocotyledon forage grass slightly increased although there was no significant difference（P〈0. 05）. The yields of dicotyledon significantly decreased（P〈0. 05）. The concentrations of 1 050 m L·hm- 2had the best controlling efficiency on S. chamaejasme which was 94. 92%.

关 键 词：狼毒净 黑河源区 防效 牧草产量 

分 类 号：S812.6[农业科学—草业科学]