The herbicides currently used to control grass weeds in rapeseed fields in China are mainly herbicides such as stearic acid, glyphosate, and glyphosate. In the rape field, broad-leafed grasses, tribenuron, have a long residue in the soil, which may cause phytotoxicity to the crops. Herbicide ethyl ester is an ideal variety for the control of broad-leaved weeds in rapeseed fields and is safe for Brassica napus. The herbicide ethyl ester degrades rapidly in the soil and is safe for the post-planting crops. The dosage is 13-15 g/mu. Combining with other herbicides can expand the grass-killing spectrum and is an effective herbicide for controlling broad-leaved weeds in rapeseed field. The product can also be used for other broad-leaved weeds such as wheat, corn, cereals and other grass crops.
Kotak is a post-emergence selective herbicide for rapeseed. It can effectively control broad-leaved weeds such as swine fever, and is an ideal herbicide for rapeseed fields. The use of Grotek depends on the type of rapeseed and the weeding law of the field weeds. According to the occurrence of weeds, Brassica napus varieties are applied in early December or mid-December, and pesticide application is likely to occur before the end of November. In general, 50% of high-tech 30-35 ml per acre, watered 50 kg of stem and leaf spray, temperature above 10 °C play a faster effect. Before and after the rapeseed direct seeding and transplanting period, most areas in China have suffered from drought and rain, affecting the growth of rapeseed. For rape fields with poor drought and drought, the soil should be kept in conjunction with irrigation to maintain a certain degree of lyricism so as to ensure efficacy.
For the mixed crops of grassy weeds and broadleaf weeds, we spray 30% of eucalyptus and 90 ml of diluted milk per acre with 50 kg of water per acre, and use 5% acre per acre for rape fields with grassy weeds.禾 克 克 克 乳 50 50 50 50 50 50 50 50 50 50 50 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 In addition to Ling (Got) 30 ml watered 50 kg spray, or 30% more than 50 ml watered 30-40 kg spray.
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