Rice live field weed control technology

    In the live field, since the rice seeds are directly sown on the soil surface, the young shoots and the young roots are more sensitive to the herbicides. Therefore, it is necessary to select a herbicide with high safety and good effect for blocking the weeding in the rice field.

    1. Direct seeding and weeding before planting can be used with 90% grass danshen (killing dan). Before planting, turn the sputum and sputum and apply the sputum. Apply 150 to 200 ml per mu . Mix the poisonous soil and apply it. Seeding 5 to 7 days after the medicine , seed germination or no germination.

    2. Direct seedling stage closed weeding can be selected with 45% bensulfuric acid and grass enemies (Nongjiafu), mixed with soil or mixed fertilizer in two leaves and one heart phase of rice, 180 grams per acre (one bag), after application Deep water boring for 3 to 5 days, after normal field management.

3. Weeding in the late stage of live field can be used as a one-time herbicide. It should be applied when all kinds of weeds are basically out and the temperature rises obviously. Usually in mid June to early July of administration, with 50 to 60 ml per acre, barnyard grass than 5 leaf stage, 40 to 50 grams per acre was added quinclorac (45% or 50% of the barnyard thorough without a trace), Drain the day before application, so that the stems and leaves of weeds are fully exposed to the water surface, spray evenly on 15 kg of water per acre , and the irrigation is normally managed 1 to 2 days after spraying .