| 【Objective】 The high effective and broad-spectrum herbicide, 21% Fluoroglycofen-glufosinate ME, was
developed and applied in the control of non-arable weeds, and its physical and chemical properties were determined.【Method】
The optimal combination method was used to screen out different surfactants to determine the optimal formula. Control
effect of 21% Fluoroglycofen-glufosinate ME against non-arable weeds was studied by field tests. 【Result】The optimal
formula of 21% Fluoroglycofen-glufosinate ME（mass fraction）was: 20% Glufosinate-ammonium, 1% Fluoroglycofenethyl, 7% cyclohexanone, 10% n-butanol, 20% emulsifier（OA-TAPO∶alkyl glucoside∶betaine = 3∶2∶1）,
and water to made up for 100%. Field test results showed that, 21% Fluoroglycofen-glufosinate ME with dosages of 270-
540 mL/ hm2
had obvious control effect on non-arable weeds. The coverage control effects against gramineous weeds were
80.41%-83.47%（treatment after 5 d）, 92.69%-94.55%（treatment after 10 d）, 93.64%-96.04%（treatment after 30
d）and those against broadleaf weeds were 84.44%-88.13%（treatment after 5 d）, 95.61%-96.72%（treatment after 10
d）, 97.59%-98.45%（treatment after 30 d）, respectively. The relative fresh weight control effect could reach 93.65%-
96.09% and 97.37%-98.51%, respectively.【Conclusion】21% Fluoroglycofen-glufosinate ME can broaden the herbicide spectrum and effectively control non-arable weeds. It shows better performance on quick-acting property and continuous effects
than those of 20% glufosinate-ammonium SL and 10% fluoroglycofen-ethyl EC. |
