叶面处理除草剂对防风等中药材的药害症状观察

试验研究了芳氧苯氧丙酸类等7类15种除草剂对防风、何首乌、地黄、透骨草的药害情况,通过药害症状观察,筛选可以安全使用的除草剂及剂量。结果表明:在试验剂量处理范围内,防风田施用骠马、收乐通、高效盖草能、精喹禾灵、喹禾灵、苯磺隆、烟嘧磺隆的1～4剂量处理,世玛1和2剂量处理较为安全。何首乌田施用骠马、收乐通、精喹禾灵、喹禾灵的1～5剂量处理,烟嘧磺隆的1～4剂量处理,高效盖草能的1～3剂量处理较为安全。地黄田施用骠马、收乐通、高效盖草能、精喹禾灵、喹禾灵、烟嘧磺隆的1～5剂量处理,苯磺隆的1～3剂量处理较为安全。透骨草田施用骠马、精喹禾灵、收乐通、高效盖草能、喹禾灵、乙羧氟草醚,各剂量处理均较为安全。百草枯和草甘膦在供试药材田均不安全,不能施用。

Study on Phytotoxicity Symptoms of Foliar Application Herbicide to Chinese Medicinal Herbs of Saposhnikovia divaricata(Turca.)Schischk

The experiment studies phytotoxicity situation of 15 kinds of herbicide to Saposhnikovia divaricata（Turca.） Schischk, Polygonum multiflorum Thunb., Rehmannia glutionsa Libosch., Phryma leptostachya L.. Through phytotoxicity symptoms observation, safe herbicides and concentrations were screened. The results show that： it is safe concentration for treatments of 1 - 4 of fenoxaprop-P-ethyl, clethodim, haloxyfop-R-methyl, quizalofop-P-ethyl, quizalofop-ethyl, tribenuron - methyl, nicosulfuron and concentration of 1 - 2 of Sigma in Saposhnikovia divaricata（ Turca. ） Schischk. filed. It is safe to use concentrations in treatments of 1 - 5 of fenoxaprop-P-ethyl, clethodim, quizalofop-P-ethyl, quizalofop-ethyl, concentrations in treatments of 1 - 4 of nicosulfuron, and concentrations in treatments of 1 - 3 of haloxyfop-R-methyl in Polygonum multiforum Thunb. Filed. It is safe to use concentrations in treatments of 1 - 5 of fenoxaprop-P-ethyl, clethodim, haloxyfop-R-methyl,quizalofop-P-ethyl, quizalo- fop-ethyl, nicosulfuron and concentrations in treatments of 1 - 3 of tribenuron - methyl in Rehmannia glutionsa Libosch. filed. It is safe to use concentrations in treatments of 1 - 5 of fenoxaprop-P-ethyl, clethodim, haloxyfop-R-methyl, quizalofop-P-ethy, quizalofop-ethy, tluoroglycofen-ethyl in Phryma leptostachya L. filed. Paraquat and glyhosate are not safe in all the herbs fileds in this study.