几种化学除草剂在苎麻田间利用评价

Effect of Applying Chemical Herbicides on Ramie in the Field

用７种旱地除草剂对苎麻地杂草进行防除试验，观测了各种除草剂对杂草的反应，进行防除效果比较和评价，并对部分除草剂进行混配试验。结果表明：西玛津、草甘膦和农达３种除草剂具有较广的杀草谱、较高的杀灭率和较长的持效期，利用价值较高；２，４Ｄ等４种除草剂杀草谱相对较窄，应有选择性地利用，尤其是水花生净必须对空心莲子草专用才能充分发挥除草作用。几个混配组合中农达加三十烷醇对杂草的防除效果最好，草甘膦加西玛津和农达加西玛津次之，２，４Ｄ加尿素防效较差。

Effect of 7 upland herbicides (i. g. sodium pentachlorphenate,Ximajin) to control weeds in the ramie field was observed, compared and analyzed.Meanwhile the test of compound herbicides was conducted.The results showed as follows.3 herbicides namely Ximajin,Glyphostae and Nongda have wide spectrum,high efficiency,long available period and high utility value,4 herbicides such as 2,4 D have a relative narrow spectrum,and then should be used selectively.Comopound herbicide combinations Nongda+N triacontanol is the best,glyphostae+Ximajin and Nongda+ Ximajin second, Glyphosate+ Ximajin third.