33%安达星水分散粒剂与其他除草剂综合使用防除移栽水稻田杂草田间药效试验

The Text of Appling 33% Metazosulfuron WG and Other Herbicides Comprehensive in Rice Paddy Field

33%安达星水分散粒剂与其他除草剂综合使用防除移栽水稻田杂草,当封闭性除草剂与安达星先后施用时,对杂草的株数防效在施药后15 d,30 d和45 d均高于85.7%,鲜重防效高于83.2%;当安达星与香附净或灵斯科混合使用时,药后15 d和30 d对杂草的株数防效不及前者,但好于安达星和灵斯科单用。药后45 d时,安达星与香附净或灵斯科混合用药对杂草的防效与安达星和封闭性除草剂2次用药防效相当,好于安达星、灵斯科单用,与稻杰单用防效相当。

33% metazosulfuron WG and other herbicides comprehensive to be used for rice paddy field.The resultes showed that all of control efficiency of plant numbers and fresh weight after 15,30 and 45 days late were over 85.7% and 83.2% respectively when 33% metazosulfuron WG and other herbicides one after another.The control efficiency of plant numbers after 15 and 30 days later were lower than above-mentioned the control efficiency when 33% metazoxulfuron WG mixed with halosulfuron-methyl or florpyrauxifen-benzyl,but it was better than 33% metazosulfuron,halosulfuron-methyl or florpyrausifen-benzyl applying alone.The control efficiency of 33% metazosulfuron WG mixed with halosulfuron-methyl or florpyrauxifen-benzyl after another 45 days was same with 33% metazosulfuron WG with pre-herbicides one after another or penoxsulam alone to be applied,and it was better than 33% metazosulfuron WG or florpyzuxifen-benzyl to be applied alone.