除草剂解毒剂减轻氯磺隆残留对玉米药害的研究  

Reduction of chlorsulfuron residue injury to maize by herbicide antidotes

作　　者：孙太凡[1] 叶非[2] 

机构地区：[1]黑龙江八一农垦大学文理学院,大庆163319 [2]东北农业大学,哈尔滨150030

出　　处：《植物保护》2010年第4期142-144,151,共4页Plant Protection

基　　金：国家自然科学基金(30171069);黑龙江省自然科学基金(B200602)

摘　　要：采用室内生物测定方法,研究了除草剂解毒剂5-二氯乙酰基-3,6-二甲基-3-乙基-9-氧代-1,5-二氮杂二环[4.3.0]壬烷减轻氯磺隆对玉米的伤害作用。结果表明:随着土壤中氯磺隆浓度的增大,玉米的生长受到抑制,用解毒剂浸种处理后,可在一定程度上减轻氯磺隆对玉米生长的影响。当土壤中氯磺隆残留量为2μg/kg时,解毒剂浓度在1～5mg/kg时解毒效果最佳,玉米株高、株鲜重、根长、根鲜重的恢复率最高可达101.27%、63.74%、73.29%和51.81%。By bioassay method, how herbicide antidotes, such as 5-dichloroacetyl-3, 6-dimethyl-3-ethyl-9-oxo-1, 5-diazabicyclo[4.3.0]nonane, could alleviate the harm of chlorsulfuron to maizes was investigated. The results showed that, with the increase of chlorsulfuron concentration in soils, the growth of maize was inhibited. After the seeds were soaked in the antidotes, the harm of chlorsulfuron to maize could be, to some extent, reduced. The best antidotal effect could be achieved when the residue of ehlorsulfuron in soils was 2 μg/kg and the concentration of the antidote was 1-5 mg/kg. The recovery rates of maize height, plant fresh weight, root length and the root fresh weight could reach 101. 27%, 63.74%, 73.29% and 51.81% at most, respectively.

关 键 词：除草剂解毒剂 氯磺隆 玉米 生物测定 

分 类 号：S481.8[农业科学—农药学]