Bullseedgrass can be one of the most problematic weed types for farmers, and many often complain about it. Cowgrass is like a "little strong man" that can't be killed for a long time. Some herbicides are either ineffective or rebound after the effects have worn off.
A variety of drugs, a variety of methods exhausted, it is still able to indomitable growth. Even grow more vigorous and robust than field crops, just like its name oxalis. It is stubborn and difficult to manage, and tough and vigorous.
Here's what to say: the most effective drugs and formulas to control oxalis.
Bullrushes are very resistant to drugs when they grow up, and it's hard to kill them with drugs. Even if you use your hands to pull out, because its root system is developed and rooted and deep, it is also difficult to pull out.
The most effective time to control oxalis is when it grows to 3-4 leaves.
Some years ago because of glyphosate's large-scale, large number of use, and now simply use glyphosate, the effect of exterminating oxalis has been very poor. Therefore, we should, switch to other more effective drugs or drug compound use for control.
What herbicides can kill oxalis, there are mainly five kinds:
1, cyhalofop-butyl.
2, oxaflutole.
3, Glyphosate + Phenoxyfluorfen.
4, glufosinate ammonium + alizarinone: glufosinate ammonium has a fast killing speed, can also kill other weeds, the safety of the crop and other characteristics, but the efficacy of the duration of a short. But the duration of efficacy of alizarinone can be up to 45 days, so it is very suitable to use glufosinate ammonium and alizarinone together to get rid of oxalis.
5, glufosinate ammonium + Anrongle additives.
Finally, I would like to emphasize again that the best time to use the drug is 3-4 leaf stage. And it is better to choose some drug additives according to the drug characteristics to improve the control effect.