【Scientific planting】What medicine is used for rice dry direct field sealing grass? What time is it appropriate? What should I pay attention to?
Soil containment drugs commonly used in rice drylands are mixtures of butyrosamide, dimethylpentylene, secylamine and benzylsulfuron, pyrazonisulfuron, oxazone, propynyloxanone and other drugs. Butylosamine has little effect on the germination and emergence of rice dew seeds, and dry direct rice fields with dew seeds can be used before sowing seedlings (it is best to use those with safety agents). If there are more dew seeds, you can choose Zhongdingling. Dimethyl pentylene, sec-butylline, oxalone and other drugs are safer to apply before rice germination, and it is easy to produce medicinal harm after rice germination. With the increase of weed species and the increase of weed resistance, when choosing a closed herbicide, it is not recommended to use a single agent for sealing, and the sealing effect may not be good. #农技科普大赛 #
39% dimethylpentylene and oxalone, compounded by dimerpentylene and oxaloxone, dimethylpenthrin can prevent the weeds and broad-leaved weeds of the family Cyprinidae, Barnyard Grass, Matang, Dogtail Grass, Cow Tendon Grass, Intestinal, Amaranth and other annual grasses; Oxalone can prevent a variety of annual monocotyledonous and dicotyledonous weeds such as barnyard grass, thousand gold, finches, sedges, duck tongue grass, knotweed, etc., and the compounding of dimethylpentylene and oxalone has a synergistic effect. Use 39% dimethylpentenone oxystenone 150 ml/mu before germination after the rice drought, pay attention to avoid short-term heavy rainfall after the drug, do not make the field water, and ensure the moisture in the field.
Precautions: Dry direct broadcast of closed drugs should be sooner rather than later, generally within 1-2 days after sowing; The field should be leveled, the seeds should be covered after sowing, and the dew seeds should be reduced, and the seeding machine or artificial sowing can be taken to reduce the dew seeds at a depth of 2-3cm; In times of drought, irrigate the horses to protect the water, do not water during the emergence stage, and reduce the water in the ridge area to prevent the damage of closed herbicides.
