As soon as winter arrives, the cultivated land begins to recuperate, but the weeds are not idle and begin to breed roots. Therefore, weeding the protective arable land in winter has become the main task. The following is a must-see point for weeding in wheat fields and rape fields.
Chemical herbicides in wheat fields: no-till fields kill old grass, time is 3-5 days before sowing of wheat, and 10% glyphosate AC 500 ml or 30% Feida soluble powder 200 g or 20% gram without trace water 150 ml of water, add 40 kg of water, spray on the sun after the dew is dry. Weeding after sowing: the application time of the wheat field is controlled after sowing and covering to the 2 leaf stage of the wheat seedlings, 50% of the high-infiltration of isoproterenol WP 125g, sprayed with 40 kg of water; the application time of wheat field is controlled by wheat 1-2 leaves Period, the use of 6.9% Hummer SC40-50 ml, 40 kg of water spray. For the small wheat field where the broadleaf weeds are more likely to be removed, 20% of the aroma oil can be used for 50-60 ml/mu, and 40 kg of water can be sprayed. Note: Hummer is strictly prohibited in large wheat fields.
Chemical weeding in rapeseed field: weeding before transplanting in no-tillage field: 3-5 days before transplanting rapeseed, 500 ml of 10% glyphosate water or 30% Feida soluble powder 200 g or 20% gram 150 ml of water, 40 kg of water spray. Weeding after transplanting: rapeseed field dominated by grass weeds, master weed 3-4 leaf stage, use 5% fine grass emulsifiable concentrate 50 ml or 10.8% efficient cover grass emulsifiable concentrate 20 ml, optional One type, 40 kg of water is evenly sprayed; the rapeseed field dominated by broadleaf weeds can be used after the rapeseed is greened, the weeds are 2-4 leaf stage, 50% of the high-gram suspension agent is used for 40 ml, and 40 kg of water is evenly added. Spray; for rapeseed fields where grass weeds and broadleaf weeds are mixed, use 150-200 ml of 20% dichlorfen emulsifiable concentrate, spray 1-3 days after transplanting rapeseed, add 40 kg of water to the soil; Available with 17.5% fast knife emulsifiable concentrate 90-120 ml/mu, greening in rapeseed (7-10 days after transplanting), weed 2-4 leaf stage (live rapeseed mastered in rapeseed 4-5 leaf stage, weed 2 -4 leaf stage), add 40 kg of water, aim at the weed stem and leaf spray. Note: High Turk and Sharp Knife are not suitable for use in cabbage and mustard-type rape fields.
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