2种安全剂减轻烟嘧磺隆残留对高粱药害的作用

Effects of 2 Kinds of Safety Agents on Protecting Sorghum from Residual Injury of Nicosulfuron

以高粱晋糯3号为材料,采用室内生物测定方法,研究安全剂奈安和环丙磺酰胺减轻烟嘧磺隆残留对高粱的药害作用。结果表明,随着土壤中烟嘧磺隆浓度的增大,高粱的生长受到抑制,喷施环丙磺酰胺和奈安后可在一定程度上减轻烟嘧磺隆对高粱生长的影响;当土壤中烟嘧磺隆有效成分残留量为4 g/hm^2时,环丙磺酰胺喷施量为8 mg/kg、奈安喷施量为10~15 g/kg时,药害症状缓解,解毒效果最好。

Sorghum Jinnuo 3 was used as indicator plant to study the herbicide antidote Nien and Cyprosulfamide by bioassay method. The results showed that with the increase of Nicosulfuron concentration in soils, the growths of sorghum were inhibited. After sraying antidote Nien and Cyprosulfamide, the harm of Nicosulfuron to sorghum, to some extent, had been reduced. It could get the best effect with the concentration of Cyprosulfamide and Nien was 8 mg/kg, 10-15 g/kg when the concentration of Nicosulfuron in soils was 4 g/hm^2.