A kind of mixed herbicide containing bentazone, acifluorfen and fenoxaprop-ethyl and its application

Abstract

The invention belongs to the field of weeding, and discloses a mixing weed killer containing bentazone, acifluorfen-sodium and fenoxaprop-p-ethyl, and an application thereof. The mixing weed killer adopts the bentazone, the acifluorfen-sodium and the fenoxaprop-p-ethyl as main effective components, wherein a mass ratio of the bentazone to the acifluorfen-sodium to the fenoxaprop-p-ethyl is 0.1-80:0.1-80:0.1-80, the total mass percentage of the three materials in the mixing weed killer is 1-85%. The mixing weed killer provided by the present invention can be applicable for weeding in the soybean field after seedling, specifically provides significant effects for prevention and elimination of various grassy weeds and broadleaf weeds in the soybean field. Compared to the single weed killer, in the premise of improvement of the efficacy, the weeding composition provided by the present invention delays the resistance generating of the weeds, and has wide weeding spectrum and long effectiveduration, and provides safeties for the soybean and the succeeding crops.

Description

technical field [0001] The invention belongs to the field of herbicides and relates to a mixed herbicide containing bentazone, acifluorfen and fenoxaprop-p-p-ethyl and an application thereof. technical background [0002] Mechasong, also known as Paicaodan and Bendasone. Chemical name: 3-isopropyl-(1H)-benzo-2,1,3-thiadiazin-4-one-2,2-dioxide, the structural formula is: [0003] [0004] The herbicide is a contact-type selective post-emergence herbicide, which is used for the treatment of stems and leaves at the seedling stage, and works through leaf contact. When used in dry fields, it first penetrates into the chloroplast through the leaf surface to inhibit photosynthesis. When used in paddy fields, it can penetrate through the leaves and absorb through the roots, and then transmit to the stems and leaves, which strongly hinders the photosynthesis and water metabolism of weeds, causes nutrient starvation, and causes physiological dysfunction and death. The active ing...

AI Technical Summary

Problems solved by technology

However, acifluorfen is ineffective against grass weeds and sedges, and has contact damage to soybeans. Therefore, the dosage should be strictly controlled during use, or mixed with other herbicides to reduce phytotoxicity and improve Control Efficacy of Grass Weeds

[0011] At present, herbicides in soybean fields are limited by the safety of crops, and the herbicidal spectrum is also limited. Using a single herbicide alone cannot completely effectively control the occurrence of weeds in soybean fields. Too long, excessive dosage or uneven application will easily cause residual toxicity to current crops or subsequent crops

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