摘要
通过除草剂"大田净"的不同时期和不同浓度施用,观测其对烟田杂草的防除效果。试验结果表明,揭膜培土时(移栽后25d)喷施杂草防除效果较好;喷施不同浓度间,400倍液、550倍液比800倍液防治效果好。建议在揭膜培土时喷施550倍"大田净"进行除草。
In order to study the effect of herbicide Metolach in tobacco fields, the experiments of different periods and different concentration of application were studied in 2006. Compared with TA （Treatment A： applying Metolach 7 days before transplanting tobacco seedling, film mulching）, the weed control effect of TB （Treatment B： applying Metolach 25 days after transplanting tobacco seedling, uncovering film and hilling up） was more significant. Among the different concentration, Ta （Treatment a： spraying at a dilution of 400＋ ）and Tb （Treatment b： spraying at a dilution of 550＋） gave better results than Tc （Treatment c： spraying at a dilution of 800＋）. So it＇s recommended to apply herbicide Metolach at a dilution of 550＋ when uncovering film and hilling up （25 days after transplanting） for weed control of tobacco fields.
出处
《亚热带植物科学》
2008年第1期54-56,共3页
Subtropical Plant Science
关键词
烤烟
除草剂
大田净
Flue-cured tobacco
herbicide
Metolach
