Sealing ground herbicide, also known as soil treatment agent, before the emergence of weeds, spraying with herbicides such as ethylene mixture, the formation of a layer of film on the surface, when the weeds unearthed through the toxic soil layer, the weed coleoptile Or the root sheath is poisoned by herbicide poisoning and locked in the soil. This herbicide is safe for corn seedlings, and maize can be safely emerged because corn has an enzyme--maize ketone can decompose toxin from herbicides. Therefore, corn can be raised without any problems, weeds cannot be normally excavated, and the purpose of sealing and weeding can be achieved.
Use skills: First, before the grass did not use, after the grass seedlings do not work (not out of corn does not matter); Second, better moisture conditions, the surface wet, grass seeds will germinate earlier, as early as possible through the poisonous soil, poisoning death . Herbicides are valid for 25-30 days. The third is more water, water enough (more than 2 barrels) to spray evenly sprayed; four is the evening medication, make full use of the dew "water" moisture good film.
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