摘要
烟草大田移栽前和团棵期中耕后 ,采用施田补、广灭灵、大惠利等除草剂防除杂草 ,通过比较对杂草的防除效果及对烟株的安全性 ,结果表明 :团棵期中耕后施用除草剂较移栽时安全性好 ,但对杂草的防除效果均低于移栽前施用 ,其中施田补和广灭灵的效果较大惠利好 ,对杂草的株防效达 70 %以上 ;地膜烟移栽前在墒面湿润条件下施用除草剂 ,对杂草的防除效果达 80 %以上 ,试验中的除草剂单用 ,仅大惠利、农思它安全性好 ,施田补和F84 2 6对烟株药害较重 ,广灭灵有一定药害 ,但不影响植株正常生长 ;通过广灭灵和F84 2 6混用、施田补和F84 2 6混用后 ,提高了除草效果和安全性。
The control effect of severalherbicides including pendimethalin,clomazone,napropamide,qxadiazon,F8426 at all was tested in the field.The effect of controlling weeds and security to tobacco were compared.The results showed that all of them more safety using in the period of cultivation than using as transplant,but the better effect of controlling weeds is the last measure.The effect of pendimethalin and clomazone is over napropamide,with number reduction of 70%.Sprayingherbicides when transplanting and under the condition of soil wetness for the field that covered plastic film,number reduction is over 80%,for thoseherbicides,napropamideand qxadiazon are security,pendimethalin and F8426 wereharm severity to plant,and theharm of clomazone is very light,not to infection plant growing normally .Two modes usingherbicide mixed could enhance the effect,enlarge prevention object and improve the security.
出处
《农药》
CAS
北大核心
2003年第5期33-35,共3页
Agrochemicals
