How to choose a suitable herbicide when the wheat field is less than weeds

Some farmers have reported that wheat has less emergence and half of it has not emerged. Because there are too many dew seeds in the field, we can not use the soil blocking treatment agent to weed the grass. Now the wheat seedlings are in the 2-leaf stage, and the weeds in the field are in the needle-forming period. I want to know which herbicide to use to control the weeds in the field is better. Let's take a look at the pesticide nets together to find out which herbicides are better:
This year, the soil in the field is dry, the emergence of wheat is affected, and the emergence rate of wheat in some fields is low. The weeds in the wheat field with less emergence of seedlings are relatively heavier. Weeds and wheat seedlings compete for nutrients, sunlight, etc., causing damage to the wheat seedlings and prone to grasshoppers. The weeds in the field should be prevented in time to ensure that there is sufficient temperature, light, water and fertilizer for the growth of wheat seedlings, promote multi-tillers and increase the field population.
When the soil is too dry, it is difficult to form a tight and certain thickness of soil-blocking soil after spraying the soil sealing agent such as isoproturon or acetochlor, and it will affect the absorption of pesticides by weed shoots and affect the prevention. effect. Fields with less seedlings and dry soil can wait until the weeds are out, and weed them according to the grass phase with a suitable stem and leaf treatment agent. For the control of grass weeds, acetylene ester, oxazoline acetylene ester, isoproturon, etc.; for controlling broadleaf weeds, oxazinone, acesulfame, benzenesulfuron, difluoroazole Pyrimidine, 2 methyl 4-chloro, bentazone, flupiroxyacetic acid, and the like. The effects of acesulfame and disulfonate on the weeds and broadleaf weeds are good. When the two types of weeds are mixed, the weeds can be controlled at one time.
Tips for China Pesticide Network : After applying isoproturon, it will cause freezing damage when it is cold. In the early stage of spraying pesticides, pay attention to the weather forecast to ensure that there is no low-temperature frost weather about 1 week after application. 2 A 4 chlorine should be used in the 4th leaf stage of wheat until before jointing, otherwise it will easily cause phytotoxicity. In the application of disulfonate, methyl iodide should pay attention to wheat varieties, weather conditions, wheat growth, etc., strictly according to medication instructions.

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