Florasulam is a sulfonamide herbicide, similar to sulfonylurea herbicide, sulfonamide herbicide is also a typical acetolactate synthase inhibitor. They target ALS and are mixed inhibitors involving pyruvate and thiamine pyrophosphate (TPP), which compete for the binding site of the enzyme, but have no competitive effect on the matrix or cofactors. Its main structure is triazolopyrimidine sulfonamide. There are currently 6 varieties, all of which are upland herbicides, including flumetsulam, methoxsulam, chlorfentrazone, diclosulam, and Florasulam And Penoxsulam. Flumetsulam is safe to soybeans, corn, wheat, barley, peas, alfalfa, clover, etc., and has no adverse effects on subsequent crops. Methoxsulam is used to control most of the main broad-leaved weeds in wheat, barley, and rye fields after emergence. It can be used before and after the emergence to control most of the main broad-leaved weeds in corn fields. Chlorfentrazone is mainly used to control broad-leaved weeds in soybean fields before and after seedlings. It has specific effects on cocklebur, ragweed, ragweed trifida, sweet potato and abutilon. Florasulam is a herbicide for soybean fields. Florasulam is mainly used to control broad-leaved weeds in winter wheat fields after seedling. Penoxsulam is a recently reported herbicide, mainly used to control weeds in rice fields. At present, 5.8% sulfentrazone suspension and 80% sulfentrazone water dispersible granules of sulfonamide herbicide formulations have been approved for registration in China. Sulfentrazone is the fifth triazolam sulfonamide herbicide that was successfully developed in the mid-1990s after sulfentrazone, flumetsulam, chlorfentrazone and diclosulam New varieties.
Florasulam is a broad-spectrum weed killer for controlling broad-leaved weeds in post-emergence stem and leaf treatment. The dosage of 5g per hectare can effectively control dianthus, madder, convolvulaceae, malvaceae, and Polygonaceae weeds, and important field weeds such as Chrysanthemum, Sorrel, Solanum, Polygonum vulgaris, etc. are very sensitive to it. With a dose of 5g/hm2, it can prevent pigs with a height of 20cm, 2.5g can prevent 6 pieces of chickweed in the true leaf stage, and 5g can completely prevent chickweed and matricaria in the late growth stage. Florasulam has strong miscibility and is suitable for mixing with plant growth regulators, other herbicides, fungicides, etc. It can be used in wheat fields by adding liquid nitrogen, and the dosage per hectare can be reduced to 2.5g. The herbicides that can be mixed with flumetsulam, 2-methyl-4-chloro, fenoxaprop-p-ethyl, fluroxypyr, oxaflufen, diclopimidic acid, carboxifen, etc. Florasulam can be used flexibly. It can be mixed before sowing and pre-emergence soil treatment, or sprayed after emergence.
Post time: Jul-21-2020