What are the closed herbicides for soybeans

Soybean closed herbicides are acetochlor, chlorimuron-methyl, metribuzin, glyphosate and so on. Acetochlor can generally be used before sowing or 3-5 days before emergence after sowing. Chlorimuron-methyl can be used before and after soybean emergence, but it is easy to cause phytotoxicity after emergence, so it is generally not recommended to use. Metribuzin is generally used 3-5 days before emergence after sowing. Glyphosatecan be used 2-3 days before soybean emergence after weed emergence.

What are the commonly used soybean herbicides?

1. Acetochlor (50% acetochlor, 90% acetochlor, 90% Shengnong Shi, 90% Horace)

Acetochlor is commonly used as a soil treatment, either before sowing or after sowing before emergence. Apply 3-5 days after sowing before emergence. It should be noted that application during the soil arching period may cause phytotoxicity, especially when mixed with broadleaf weed control agents, application during the soil arching period may cause yield reduction. The dosage of soil-sealing herbicide should be adjusted according to soil type and organic matter content.

2. Chlorimuron-methyl (trifuron-methyl, trifuron-methyl)

Chlorimuron-methyl can be used before and after soybean emergence, but it is easy to cause phytotoxicity after emergence, so it is generally not recommended to use. It is usually used for soil treatment before emergence after soybean sowing. 60-75 g of 20% chlorimuron-methyl per hectare is used 3-5 days before emergence after soybean sowing. Chlorimuron-methyl is mainly used to control broad-leaved weeds in soybean fields. It can control weeds such as Xanthium sibiricum, Lysimachia angustifolia, Musk petal flower, Elsholtzia chinensis, Abutilon theophrasti, Polygonum multiflorum, Chenopodium album, etc. It has inhibitory effect on thistle, arsetus, polygonum rollosum and gramineae weeds, but has poor efficacy on Stellaria chinensis, Commelina communis and Solanum nigrum.

3. Oxazinone (mek, almethazine)

Metribuzin is generally used for soil treatment 3-5 days before soybean emergence after sowing. Metribuzin mainly control amaranth, Lysimachia, Chenopodium, Polygonum, Stellaria, Xanthium and other broad-leaved weeds.

4. Isomethion (Guangmieling, Tiandeji, Doucaoling)

It can be used for closed weeding before sowing and after sowing, and can also be used for stem and leaf treatment at early stage after seedling. It can control annual grass weeds and broadleaf weeds such as barnyardgrass, green bristlegrass, crabgrass, golden bristlegrass, nightshade, elsholtzia, spiny needle, purslane, Abutilon theophrasti, wild watermelon seedlings, Chenopodium album, Polygonum sibiricum, Lycopodium album, etc., and has certain inhibitory effect on perennial weeds such as small thistle, thistle, endive and arsetus.

5, glyphosate (Roundup, Curinda, Holida, farmers music)

It is suitable for controlling early spring weeds in newly opened wasteland and other plots with many perennial weeds. Spraying glyphosate 2-3 days before soybean emergence can control perennial weeds, which not only can effectively control weeds, but also has strong internal absorption and conduction effect, which can kill underground parts of plants, thus reducing the harm of the next year.

The above is what the soybean closed herbicides are related to, I hope to help everyone.