Several kinds of weeding techniques in wheat vegetable fields

Several kinds of weeding techniques in wheat vegetable fields

In recent years, with the wide application of chemical herbicides in the field, weed resistance has been enhanced and the grassy phase has changed greatly. Sporadic weeds such as bluegrass, swine crickets, commonweed, and laverna have been developed into wheat. Vicious weeds in vegetable fields. In order to eliminate and control grass damage and ensure a good harvest in the afternoon of next year, the following control measures are proposed: 1. Chemical weeding in rape fields. (1) Soil treatment: Use 70-100 ml of 50% acetochlor per acre, spraying 40 kg of water before seedling sowing, or using 4% of Roundup 2-3 days before transplanting rapeseed. -40 ml of 40 kg water spray. (2) Stem and leaf treatment: monocotyledonous weeds are mainly used in the weeds at the second to the third leaf stage, with 17.5% oil grass and 900-100 milliliters of oil per acre, or 10.8% of high-efficient straw to 30 ml, or 5% of refined grass can be 30-35 ml of emulsifiable concentrate and 50 kg of water spray. The dicotyledon-based plots were sprayed with 50-50 ml per acre with 30-35 ml of water and 50 kg of water. For single and dicotyledon mixed fields, 7-10 days after transplanting, use 17.5% of oil grass and 90-100 ml of oil grass per acre, or 90% of oil of Neemese oil, 45 ml, before transplanting rapeseed or transplanting 5 Days later, spray 50 kg of water. Second, chemical weeding in wheat fields. (1) Soil treatment. Use 50-100 ml of 60% butachlor in each acre and spray 50 kg of water before seeding. (2) Stem and leaf treatment. For grassy plots dominated by grasses, 50% hyperosmotic isoproturon 125 g/mu or 6.9% hippocampus 40-60 ml/mu was applied per acre, and 40 kg of water was evenly sprayed during the three to five leaf stages of wheat; with dicotyledons Weed-based plots use 20% per acre to make it 40-50 milliliters of emulsifiable concentrate or 10 grams of a superstar 10 grams, and spray 40 kilograms of water on wheat for three to five leaf stages. The single-dicotyledon mixed-field plots used 20% per acre to make it 80 ml of primrose oil plus 50 ml of 6.9% of a hummer, and sprayed 40 kg of water in the true leaf stage of wheat until jointing. Third, pay attention to matters. Application of pesticides should be selected when there is no wind and rain; wheat fields are banned with metsulfuron, chlorsulfuron and its compound formulations; (Chang Fangjiang, Agricultural Technology Extension Center, Changfeng County, Anhui Province)

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