陈勇1,2 倪汉文2 张宏军3 李晓晶2 李健强43 李晓晶2 李健强4
CHEN Yong1,2,NI Hanwen2,ZHANG Hongjun3,LI Xiaojing2,LI Jianqiang4
1College of Agronomy,South China Agricultural University, Guangzhou 510642
,China;2Department of Pesticides and Plant Quarantine, College of Agronomy and Biotechnology,China Agricultural University,Beijing 100094, China; 3Institute for Control of Agrochemicals,Ministry of Agriculture,Beijing 100026,China;4Key Laboratory of Pesticide Chemical Research and Utilization, Ministry of Agriculture,Beijing 100094,China
摘要: 用平板表面萌发法测定化学除草剂对尖角突脐孢菌菌株X27分生孢子萌发的影响,在温室研究该菌分生孢子干粉与化学除草剂的相互作用,在田间评价其混剂的除稗效果.结果表明,二氯喹啉酸和苄嘧磺隆对分生孢子的萌发影响不明显,其它除草剂均有不同程度的影响.在温室条件下,菌X27干粉与二氯喹啉酸混用具有明显的增效作用,与敌稗混用具有加成作用;在水田条件下,单用菌X27干粉防除稗草效果差,防效只有60%,而与低量的二氯喹啉酸混用,防效明显提高,达90%以上.