First, weeding time (1) According to the time of wheat sowing to determine the appropriate period of control, after general sowing in 25 to 30 days weeds basically out (about 95% of the total grass volume), this time about 4 to 5 wheat, is In addition to the best period of wheat. (2) According to the temperature to determine the prevention and treatment time, to grasp the daily average temperature above 8 °C, grab the cold tail warmer spraying herbicides, before the cold flow, to disable herbicides to prevent injury caused by drugs. In the general period from late October to late November in Shaanxi Province, most of the weeds have been released, and the weeds have a small leaf age, poor resistance to insecticides, relatively stable temperatures, and suitable plowed soil moisture. Wheat field weeds are more likely to exert normal control effects than spring control. Therefore, we should seize this favorable opportunity to timely carry out chemical weeding in wheat fields. Second, choose the right herbicide According to the species of weeds in the wheat field and wheat field (monocotyledonous weeds and dicotyledonous weeds), high-efficiency herbicides that are absolutely safe to the rear crops are selected. The more monocotyledonous weeds should be selected to kill monocotyledonous herbicides. Dicotyledonous weeds should be selected to kill herbicides dominated by dicotyledonous weeds. The dicotyledonous weeds were used in 10 acres of 10% methamphetamine or 15% of superstars. Monocotyledonous weeds can be used in 3 acres of wheat seed oil suspension 30 ml plus adjuvant 50 to 100 ml or 70% tiger tiger 2 to 3 grams, optional one of the water to 40 to 50 kilograms, stem leaf spray prevention . Third, the scientific application of herbicides The key to herbicides is the uniform use of pesticides, the correct method and dosage of herbicides, and the selection of the herbicide should be carried out at noon on sunny days above 5°C. The secondary dilution method is used when applying pesticides, and water consumption can be increased for low humidity fields. According to the survey, there are many farmers who use less water, only 15 to 22 kilograms per mu watered (a sprayer), due to less water, spray faster when spraying, resulting in missing spray, affecting the overall weeding effect. Water consumption per mu is generally 30-45 kg, so as to ensure good control effect. Offer Medical Cord Clamp, Medical Use Clamp ,Sterilized Umbilical Cord Clamp From China Factory .China Medical Cord Clamp,Medical Use Clamp factory, visit here to find the Sterilized Umbilical Cord Clamp,Pe Material Umbilical Cord Clamp that you are searching for.Medical Cord Clamp,Medical Use Clamp,Sterilized Umbilical Cord Clamp,Pe Material Umbilical Cord Clamp Umbilical Cord Clamp Medical Cord Clamp,Medical Use Clamp,Sterilized Umbilical Cord Clamp,Pe Material Umbilical Cord Clamp Luck Medical Consumables Co.,LIMITED , https://www.luckmedical.com