Herbicides Condition: antagonism. Wheat field herbicide. Antagonism refers to two herbicides herbicidal effect is less than the actual calculated based on the relevant model two herbicides alone herbicidal effects combined. Wheat field herbicide wholesalers. Interaction judgment: According to the above definition of the different types of interactions, determine the type of interaction between herbicides Herbicides affect the calculation method of the combined effects of the theoretical value (correlation model) by. Herbicide injury prevention: see growth of the seedlings, grass conditions, weather, soil. Or thin seedlings to take root not easy administration: depending on the type of medication and growth of weeds; application rates at lower temperatures in the upper limit of medication; high dosage of heavy clay soil more, some less medication sandy soil; the soil is dry without medication.