Alachlor is a selective pre-emergence herbicide that is mainly absorbed by the weeds of weeds, and the roots and seeds can also be absorbed in small amounts. It mainly kills the weeds that germinate in the soil before emergence, and is ineffective for the weeds that have been unearthed. It can be easily absorbed by soil aggregates and is not easy to be volatilized, but it can be decomposed by soil microorganisms. The validity period is about 35 days.
Acetochlor Scope: Applicable to soybean, corn, peanut, cotton, potato, sugar cane, rapeseed and other crop fields, valerian, crabgrass, valerian, foxtail, autumn scorpion, arm-shaped grass, purslane, scorpion, 1 year old grass weeds and broadleaf weeds such as corn grass, alfalfa and alfalfa. There is also a certain effect on the dodder.
Acetochlor is a selective pre-emergence herbicide, which is mainly absorbed by the hypocotyl of the monocotyledonous coleoptile or dicotyledonous plant, and is absorbed upward after absorption, inhibiting cell growth mainly by blocking protein synthesis, and making weed sprouts The growth of the young roots stops and then dies. Gramineous weeds have stronger ability to absorb acetochlor than broadleaf weeds, so the effect of controlling weeds is better than that of broadleaf weeds. The duration of acetochlor in the soil is about 45 days, mainly through microbial degradation, and the mobility in the soil is small, mainly in the 0-3 cm soil layer.
The main control object of acetochlor; annual grass weeds and broad-leaved weeds of some small seeds. It has special effects on annual grass weeds such as crabgrass, foxtail, goosegrass, valerian, thousand gold, maiden, wild oat, bluegrass, hard grass, and teff, and it has special effects on carp, carp, carp, Broad-leaved weeds such as comfrey, burdock, and dodder have certain control effects, but the effect is worse than that of grass weeds, and it is ineffective for perennial weeds.
Propionamide is a pre-emergence herbicide and is mainly used to control grass weeds. The product belongs to 2-acetyl acetanilide herbicide, which is a cell division inhibitor. It can be used for soil treatment to control rice field sedge, sedge, cow felt, ragweed, and narrow leaf diarrhea. Usually used 3 to 5 days before transplanting. This product has a poor selectivity for wet-growing rice when applied alone, and has excellent selectivity for in-line rice when used together with chlorpyrifos. If the mixture of the product and the chlorpyrifos is used at 600+200 gai/ha, the effects on the ragweed, the sedge, the cusp flower, and the sedge are all above 90%, and the effect against the gold is 100%. . Acetochlor is suitable for rice control of alfalfa, bald oyster, thousand gold, goosegrass, cow felt, narrow leaf diarrhea, water leek, shaped sedge, broken rice sedge, clove scorpion, ragweed, etc. Undergraduate and broadleaf weeds.
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