What herbicide is used for too much grass when green onions have just emerged?

What herbicide to use after green onion seedlings.

What medicine is good for green onion weeding?

Green onions use herbicides to control the herb.

1. Soil treatment after sowing and before emergence. Post-sowing pre-emergence chemical weeding is a ground pesticide application technique carried out after the green onion is sown and the weeds are not unearthed before the green onion is unearthed. The herbicide used prevents weeds from emerging and kills them, with little or no harm to the green onion seedlings.

33% pendimethalin can be used per mu.

100 150 ml of emulsifiable concentrate is sprayed on the ground with 45 60 kg of water, and then watered after application (first application and then watering can enhance the adsorption effect of the soil on the agent and reduce the damage of the pesticide); Or spray the soil with 75 100 grams of 50% promethonet wettable powder per mu and 45 kg of water.

2. After the green onion emerges, the stems and leaves are treated. After sowing, the pesticide treatment before the seedlings is generally 30 50 days, after which there are still some weeds breeding, therefore, the green onion still needs to be used again after the emergence of the seedlings, and the stem and leaf treatment is carried out. Usually in the 3 4 leaf stage of green onions or after transplanting, spray with 33% pendimethalin EC 100 150 ml to 45 60 kg of water, or 24% ethoxyfluorfen emulsifiable concentrate 66 72 ml per mu to 45 kg of water, or 100 ml of new green onion herbicide 100 ml per mu to spray 60 kg of water, which can control 1-year-old gramineous weeds and some broad-leaved weeds in the field.

What herbicide is used after the green onion seedling field, and what medicine is good for green onion weeding?

Precautions for the use of herbicides in green onion fields.

Generally, the green onion field after sowing before the emergence of seedlings and after the emergence of two chemical weeds, can kill most of the weeds that are harmful to the growth of green onions, it can be seen that the use of herbicides is labor-saving and efficient, but the following points should be paid attention to when using: First, the seedling bed should be used before the seedling emerges after sowing, pendimethalin is preferred, and the transplanting field is used before the weeds emerge after the seedlings are planted. Second, ethoxyfluorfen is forbidden during the 2-leaf period of green onions, and ethoxyfluorfen should be used with caution before the 3-leaf period.

Third, when the temperature is low, the pesticide is applied around noon on a sunny day, and the pesticide is applied in the morning or afternoon when the temperature is high.

1. After the seedlings of the green onion field, a single control of gramineous weeds can use "cover grass energy" (high-efficiency flupyromecalin). Transplanting field needs to be planted after the seedlings are slowed down, the direct field should be after the 3-leaf period of green onions, the amount per mu is mastered at 40-60 ml, mixed with 30 liters of water, and sprayed evenly, because green onions belong to the lily family, not grasses, so the grass can be absolutely safe for green onions, can be used with confidence, and there is no harm to green onions.

2. After the seedlings of the green onion field, the small grasses (such as knotweeds, quinoa, amaranth and grasses) before the 4-leaf stage can be controlled and "gol" (24% ethoxyfluorfen) can be used. The transplanting field must be within 3 days after planting, and the direct seeding field must be in front of the weeds after 3 leaves of green onions, use 40-50 ml per mu, and spray evenly with 30 kg of water. If it is a transplanting field, the following process should be strictly followed:

Land preparation - transplanting and planting crops - pesticide application - completed. Goll has a contact killing effect on young weeds and soil sealing activity, so it is necessary to ensure that the soil is moist and the temperature is above 10 degrees Celsius.

3. Fine white spots will appear on the onion tube after medication, but it will not affect the normal growth and final yield.

If there are too many grasses in the green onions, then you can't use herbicides, and it's best to pull them out by hand, which is the best.

Onion blocking herbicides, general use: acetochlor, metolachlor, pendimethalin, ethoxyfluorfen, preferably 50% metolachlor. Pendimethalin.

Ethoxyfluorfen compound, the advantages of this formula: no acetochlor, garlic grows vigorously, in addition to sealing the general small seed weeds, it can also seal the vicious weeds such as chickweed and camellia. If there are other weeds that are difficult to control, it is recommended to mix oxadone to increase the blocking effect.

No, herbicides will also damage green onions, which may cause green onions to be burned to death by herbicides, or damage to stop growing.

Summary. Hello dear <>

For weeding of shallots, you can use a quinquinogen herbicide. Quinquine may leave burn spots on the green onion leaves at high temperatures, although it has no effect on the yield, but the appearance of the green onion is not good. After the emergence of shallots, you can also use 33% herbicide emulsifiable concentrate, 20% dichlor emulsifiable concentrate or 50% Dahuili wettable powder and other soil treatment herbicides, of which 33% hericide emulsifiable concentrate has the best effect.

It is best to choose the herbicide in the morning and evening time of a sunny day, if you miss the four-leaf stage, you need to use the herbicide with caution and try to pull out the weeds manually.

What herbicide to use for shallots.

Hello dear <>

For weeding of shallots, you can use a quinquinogen herbicide. At high temperatures, quinquine may leave burn spots on the green onion leaves, although it has no effect on the yield, but the appearance of the green onion is not good. After the emergence of shallots, you can also use 33% herbicides such as herbicide emulsifiable concentrate, 20% dichlor emulsifiable concentrate or 50% Dahuili wettable powder hail celebrants, among which 33% herbicide emulsifiable concentrate has the best effect.

It is best to choose the herbicide in the morning and evening time of a sunny day, if you miss the four-leaf stage, you need to use the herbicide with caution and try to pull out the weeds manually.

After the green onion seedlings emerge, there are a lot of round-leaved grasses in the ground, and what pesticides are used will not hurt the green onion seedlings.

It can be used with 5% quinoxalin EC, 24% fluoroxalyphin EC, 33% dimethyl Libi Glutinous Pentolen EC, 24% ethoxyfluorfen EC, and a new type of green onion to remove the herbicide allium grass once. When spraying pesticides, the amount of removal should be strictly controlled, and if there is 4-6 leaves of grass in the seedbed, it can be manually pulled. There are two main types of weeds that affect the growth of green onions, namely monocotyledonous weeds and broad-leaved weeds, and herbicides should be selected according to different growth periods.