云南省保山市烤烟地杂草种类与化学防除

调查了保山市烤烟地杂草分属35个科,计136种。本文记录了各种杂草的生活周期、生态特性;研究了砜嘧磺隆(rimsulfuron)、异丙甲草胺(metolachlor)、乙氧氟草醚(oxyfluorfen)、敌草胺(napropamide)、丁草胺(buta-chlor)、仲丁灵(butralin)、草甘膦(glyphosate)、五氟磺草胺(penoxsulam)、仲灵·异噁松(clomazone·Butralin)、苄·乙(bensulfuron-methyl,acetochlor)等10余种除草剂的使用技术关键,并成功地将砜嘧磺隆、异丙甲草胺等应用于烤烟地化学除草,累计推广面积4.6147万hm2,平均除草效果达80%～90%。

Weed species in tobacco fields and chemical control in Baoshan,Yunnan Province

Based on investigations,the authors found that the weeds in the tobacco fields in Baoshan belonged to 35 families,with 136 species. The life cycle and ecological characteristics of these species were recorded. Meanwhile,the essential technology for application of the herbicides,including rimsulfuron,metolachlor,oxyfluorfen,napropamide,butachlor,butralin,glyphosate,penoxsulam,clomazone butralin and bensulfuron-methyl acetochlor was also studied. Rimsulfuron and metolachlor were successfully applied for chemical control in 46 147 hectares of tobacco fields,and the average efficacy of weed control reached 80%-90%.