不同除草剂对紫花苜蓿田杂草防除效果研究  

Effects of different herbicides on weeds control of alfalfa field

作　　者：潘玉鑫 李天银 PAN Yuxin;LI Tianyin(Gansu Yasheng Tianyuanmuge Forage Grass Science and Technology Institute,Jiuquan 735000,China)

机构地区：[1]甘肃亚盛田园牧歌牧草科技研究院,酒泉735000

出　　处：《草原与草业》2022年第4期27-31,共5页Grassland and Prataculture

摘　　要：为系统研究紫花苜蓿田杂草防除技术,本研究在留床苜蓿返青后、新播苜蓿出苗后2种苜蓿建植生产田,通过探讨不同除草剂对紫花苜蓿田杂草防除效果和苜蓿产量的影响。结果表明:苜蓿返青后防除的最佳药剂为5%咪唑乙烟酸浓度为和10%咪唑乙烟酸,最佳施用浓度分别为1.5 L/hm^(2)和1.05 L/hm^(2);新播苜蓿出苗后防除的最佳药剂为5%咪唑乙烟酸和10%咪唑乙烟酸,最佳施用浓度分别为1.5 L/hm^(2)和0.75 L/hm^(2)。In order to systematically study the technology of weed control in alfalfa field, and the effects of different herbicides on weed control and alfalfa yield were discussed in two kinds of alfalfa production field(the returned green field and the new established field). The results showed that in returned green field the optimal control agents were 5% imidazoetonicotinic acid and 10% imidazoetonicotinic acid, and the optimal concentrations were 1.5 L/hm^(2) and 1.05 L/hm^(2) respectively. In the new established field, the optimal control agents were 5% imidazoetonicotinic acid and 10% imidazoetonicotinic acid, and the optimal application concentrations were 1.5 L/hm^(2) and 0.75 L/hm^(2), respectively.

关 键 词：紫花苜蓿 杂草 药剂 防除 

分 类 号：S541.1[农业科学—作物学]