1. According to different crops, different herbicide varieties are selected, dicotyledonous plants are selected for dicotyledonous herbicides, and monocotyledonous herbicides are selected for monocotyledonous crops. At present, the monocotyledonous crop (corn) herbicides in our county mainly include acetochlor 200 g/mu + atrazine 200 g/mu, and evenly sprayed with water 120 kg/mu. The dicotyledonous crop (soybean) herbicide mainly has a cable of 150-200 g/mu; acetochlor 50-130 g/mu, and evenly sprayed with water of 120 kg/mu for pre-emergence treatment and soil closure.
2. When using herbicides, you must pay attention to the wind direction. When there are other crops in the downwind direction or the wind is too big, it is best not to spray. If it is necessary to spray, the nozzle must be equipped with a protective cover. The lower the ground, the better, so as not to follow The wind drifted to other nearby crops causing phytotoxicity.
3. For spraying equipment, after the herbicide is applied to the monocotyledonous crop (corn), it must be cleaned before the herbicide can be used for the dicotyledonous crop (soybean). The two cannot be mixed to prevent human beings. Drug damage.
4. According to the soil moisture, different water consumption is adopted. The soil is good, and it can be less water after the rain; the soil is not good, the drought can be more water. But at least not less than 100 kg per mu, and no more than 200 kg at most.
5. It is not allowed to increase the concentration of spraying at will. Some farmers think that if the herbicide hits the field, there will be no weeds. If there are scattered weeds, it is not considered that the medicine is not good, that is, the concentration may be too low. , does not work, free to increase the spray concentration. This practice is wrong, not only increases the cost, but also causes phytotoxicity to the crop itself, and may also cause phytotoxicity to other crops in the vicinity. Therefore, when using herbicides, it is not possible to increase the spray concentration arbitrarily, strictly in accordance with the pesticide instructions.
2. When using herbicides, you must pay attention to the wind direction. When there are other crops in the downwind direction or the wind is too big, it is best not to spray. If it is necessary to spray, the nozzle must be equipped with a protective cover. The lower the ground, the better, so as not to follow The wind drifted to other nearby crops causing phytotoxicity.
3. For spraying equipment, after the herbicide is applied to the monocotyledonous crop (corn), it must be cleaned before the herbicide can be used for the dicotyledonous crop (soybean). The two cannot be mixed to prevent human beings. Drug damage.
4. According to the soil moisture, different water consumption is adopted. The soil is good, and it can be less water after the rain; the soil is not good, the drought can be more water. But at least not less than 100 kg per mu, and no more than 200 kg at most.
5. It is not allowed to increase the concentration of spraying at will. Some farmers think that if the herbicide hits the field, there will be no weeds. If there are scattered weeds, it is not considered that the medicine is not good, that is, the concentration may be too low. , does not work, free to increase the spray concentration. This practice is wrong, not only increases the cost, but also causes phytotoxicity to the crop itself, and may also cause phytotoxicity to other crops in the vicinity. Therefore, when using herbicides, it is not possible to increase the spray concentration arbitrarily, strictly in accordance with the pesticide instructions.
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