粉剂除草剂颗粒表面改良后防除杂草试验初报  

Preliminary Study of Experiment on Weed Control Effect after Improvement of Particle Surface Activity of Herbicide with Powder

作　　者：徐建明[1] 薛朝标[2] 毛善国[1] 李才生[1] 

机构地区：[1]淮阴师范学院生物系,江苏淮安223300 [2]江苏省淮安市农业技术推广中心,江苏淮安223301

出　　处：《安徽农业科学》2007年第10期2937-2938,共2页Journal of Anhui Agricultural Sciences

基　　金：淮安市农业科技项目(SN0637)

摘　　要：研究了粉剂除草剂(14%乙.苄可湿性粉剂)颗粒表面活性改良后除草剂对稻田杂草的除草效果。结果表明,两试验点每公顷用改良后除草剂600 g 15 d后的防效达到88.2%、79.7%,与常规除草剂750 g的防效相当;30 d后,其防效仍为89.1%、88.0%,但常规除草剂750 g/hm2的防效明显下降,仅为64.6%和73.7%。因此,除草剂改良后能显著减少使用量、提高防除效果和延长除草有效期。The weed control efficacy was studied by using the particle surface activity improved herbicide that improved on base of the normal herbicide （14% mixture of bensulfuron-methyl and acetolchor）. The results showed that the improved herbicide with the treatment at dosage of 600 g/hm^2 after 15 days could get the effective weed control of 88.2% and 79.7% respectively in two tested sites, Their weed control effects were equal to that of normal herbicide with treatment at dosage of 750 g/hm^2. The improved herbicide could maintain a high level of effective weed control of 89.1% and 88,0% after 30 days treatment. But the normal herbicide would reduce the weed control after 30 day treatment, only being 64.6% and 73.7 %, suggesting that the improved herbicide had a very long effective weed control period.

关 键 词：颗粒表面活性改良 除草剂 防除效果 

分 类 号：S482.4[农业科学—农药学]