两种返魂草专用除草剂施用效果的对比研究  

A comprative study on the application effect of two special senecio cannabifolius less

作　　者：朱悦[1] ZHU Yue(Forestry Science Research Institute of Mudaniang,Heilongjiang Mudanjiang 157000)

机构地区：[1]黑龙江省牡丹江林业科学研究所,牡丹江157000

出　　处：《林业科技》2018年第5期46-47,62,共3页Forestry Science & Technology

摘　　要：本试验以除草率作为评价指标,通过对不同月份返魂草的育苗地、移栽地施用a、b两种返魂草专用除草剂,选择出两种除草剂最佳施用时机及施用范围(杂草苗高),其结果表明:两种专用除草剂施用后均既能保障返魂草安全,又能有效除草,但在使用时应针对不同施用时机及施用范围,专用除草剂a对最适宜使用时机为6月份,杂草平均高10 cm左右,3~5展叶期;除草剂b最适宜使用时机为8月分,杂草平均高50 cm以上时效果显著。This experiment used weeding rate as evaluation index,through applying A and B,two kinds of herbicides special for hempleaf groundsel herb,to seedling cultivation and transplanting fields in different months,to find out the optimum application time and range(seedling height).The result showed that the application of two kinds of herbicides could not only ensure the safety of medicinal herbs but also effectively weed,however it should be distinguished according to different application time and range(seedling height).The best application time of special herbicide A was June with seedling height above 10 cm and its application for 3-5 leaf period of weeds would get the most effective result.The best application time of the special herbicide B was August,it would also receive obvious effective result when the herbs and weeds height were all above 50 cm.

关 键 词：返魂草 除草剂 育苗地 移栽地 

分 类 号：S567.79[农业科学—中草药栽培] TQ457.1[农业科学—作物学]