摘要
为筛选出适合甘肃省肃南牧区栽培草地主要杂草防除的除草剂,以栽培草地播前和苗后2个时期为试验地,选择2,4-滴丁酯乳油,40%磺草-莠去津和30%草甘膦水剂3种除草剂,开展5个不同剂量处理下的杂草防除试验。结果表明:栽培草地播前,30%草甘膦有效成分剂量为1.65L/hm2时,对赖草防除效果达到了94.68%,同时对栽培草地的发芽和出苗都没有影响,是比较理想的播前除草剂。苗后2,4-滴丁酯乳油有效成分剂量为3.60L/hm2时对以大蓟、叶蒿和藜为优势杂草的栽培草地防效较好,防效分别达78.92%,85.08%和95.83%。
In order to screen out the suitable herbicides for controlling the main weeds in sowed pasture in Sunan,Gansu Province,3 herbicides（2,4-D butyl ester,atrazine and glyphosate）were selected with 5 doses to test the efficiency.The results showed that the best control efficiency （94.68%） could be reached with 1.65L/ha dose of glyphosate to treat the soil before sowing and forage germination and growth were not affected,so it was the ideal one.After seedling stage,2,4-D butyl ester showed a satisfied control efficiency to Cirsium japonicum,Artemisia leucophylla and Ceratoides spp.with dose of 3.60 L/ha and the control rates were78.92%,85.08% and 95.83%.
出处
《草原与草坪》
CAS
2014年第5期80-84,共5页
Grassland and Turf
基金
农业部公益性行业(农业)科研专项"牧区生态高效草原牧养技术模式研究与示范"(201003061)
绒毛用羊产业技术体系放牧生态岗位科学家(CARS-40-09B)
ACIAR项目(AS2/2001/094)资助
作者简介
宫旭胤（1983-），男，甘肃武威人，硕士，助理研究员，主要从事家畜生产体系和草地放牧生态系统的研究工作。E—mail：df_bomb@126．com
陈本建为通讯作者。
