Study on application technique of 20percent miecaojin wettable powder in trasplanting rice fields

摘要

Annual weeds such as Echinochloa Crusgalli, Cyperus difformis, Monochoria vaginalis and pereunial weeds such as cyperus serotinus, Sajittaria Prgmaea in the transplanting rice fields can be effectively controled by applying 20percent Miecaojin wettable powder at 60-120g(ai) /ha. The control effectiveness may reach more than 90percent when it is applied once 5-12 days after transplantation, so 20percent Miecaojin WP is an ideal herbicide in transplanting rice fields.