氟乐灵在扦插苗床上的应用探讨

Inquiration and Application of Trifluralin on the Cuttage' s Seed - Bed

采用药土层法、药剂混土法和地膜封闭法三种施药方法,在当年青杨插条苗床的研究结果:插穗芽萌发前采用药土层法的除草效果30、45、60d分别为89.9％、89.8％、和89.8％,最终效果为89.7％,持效期为75d,优于药剂混土法和地膜封闭法.

Using three methods to apply insecticide. The first method of spraying the insecticide on the surface of seed - bed. The second method of mixture between soil and insecticide. The third method of covered by the plastics on the seed - bed that had sparayed the insecticide. From the studing result of cathay poplar's callage seed - bed: When the cutting wood isn' t germination the first method is the best. The effeclion of cutting weeds is 89.9% 、89.8% 、89.9% in 30 days、45days、60days.The last efffection is 89.7 % , Duralion is 75davs.