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Scientific and rational use of rapeseed series herbicides Qiaoxi 1+1 combination, oil power 1+1 combination, oil treasure 1+1 combination, can control weeds in rape fields, prevent weeds from competing for moisture, light and nutrients, and improve the quality of rapeseed. China Pesticide Network Xiaobian introduces you to scientific and reasonable use:
Pre-emergence treatment before rapeseed transplanting or before sowing, 2 sets of combination of Qiaoxi 1+1 per acre, ie 480 g / liter of dioxin pine oil emulsifiable concentrate 16 ml, 900 g / liter of acetochlor water emulsion 30 ml, add water The 25-30 kg spray has good control effect on grass weeds and broadleaf weeds. When applying the medicine, the field should be leveled, the liquid medicine should not be in direct contact with the rapeseed seeds, and the dosage should be strictly controlled. There is no water in the field after application, otherwise it may cause phytotoxicity. Wild geese, big nest vegetables and rice leeks are malignant weeds in rape fields. Most post-emergence herbicides have a poor control effect on these weeds. These weeds should be treated with pre-emergence soil closure. . The combination of Qiaoxi has a good sealing effect on these malignant weeds.
Post-emergence stem and leaf treatment of grassy weeds and broadleaf weed mixed plots, can be used with 1+1 oil combination per acre, ie 100% propyl ester ether EC 20 ml plus 10.8% fine quizalofol water emulsion 60 ML; or 2 sets of oil 1+1 combination, that is, 10% isopropyl oxalate suspension 20 ml plus 240 g / liter of ketene EC 30 ml, add water 25-30 kg spray. Spray pesticides strictly according to the recommended dosage, and do not re-spray or leak spray. The combination of oil power and oil treasure is widely applied to rapeseed, cabbage and mustard-type rapeseed fields, and has good herbicidal effect at low temperature of 10 °C.
Weeding in rapeseed fields should be based on pre-winter removal. Because the weeds are young before winter, the drug resistance is weak, the drug absorption rate is high, and the elimination effect is good; when the spring is removed, the grass age is increased, the drug resistance is enhanced, the drug dosage is large, the drug cost is increased, and the rapeseed yield is Certainly affected.
Tips for pesticide manufacturers , before the winter, should choose the time when the temperature is high on sunny days, which can be beneficial to the effect of the drug. Fields that have not been removed or have poor control before winter can be supplemented in spring, but should be applied before rapeseed blooms.
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