Nicosulfuron, atrazine and 2,4-D isooctyl ester compound oil-based suspension concentrate

Abstract

The invention relates to the technical field of stem leaf weed killers applied to corn fields, in particular to a nicosulfuron, atrazine and 2,4-D isooctyl ester compound oil-based suspension concentrate. The nicosulfuron, atrazine and 2,4-D isooctyl ester compound oil-based suspension concentrate comprises, by weight, two parts of nicosulfuron, 20 parts of atrazine, 23 parts of 2,4-D isooctyl ester, three parts of fatty alcohol-polyoxyethylene ether, five parts of styrylphenol polyoxyethylene ether, 0.5 part of xanthan gum, 0.3 part of sodium benzoate, 0.5 part of organosilicone and 45.7 part of miscella. In the preparation process, all the raw materials are sucked into a preparation kettle to be mixed and stirred, primary grinding is conducted on the mixture through a colloid mill, fine grinding is conducted through a sand mill, sampling analysis is conducted, and after a sample is qualified, filtering, measuring, packaging and warehousing are conducted. By the adoption of the nicosulfuron, atrazine and 2,4-D isooctyl ester compound oil-based suspension concentrate, the killing effect on grassy weeds such as crab grass and barnyard grass and broadleaf grass eclipta prostrate and piemarker is good, the type of function is basically the synergism function, the speed of taking effect on the grassy weeds such as crab grass and barnyard grass is increased, and the synergism function on the grassy weeds such as crab grass and barnyard grass is remarkable.

Description

technical field [0001] The invention relates to the technical field of stem and leaf herbicides in corn fields, in particular to a dispersible oil suspension concentrate compounded with nicosulfuron, atrazine and 2,4-D isooctyl ester. Background technique [0002] At present, the existing pesticides used for weeding cornfields, for example, the Chinese patent "CN 102334484 A" discloses a "herbicide composition", in which oxentrazone is used as the main ingredient, atrazine, nicosulfuron etc. as a side material. Another Chinese patent "CN 103222470 A" discloses a "post-emergence foliar herbicide for corn fields", in which atrazine, nicosulfuron and bismuth are used in a weight ratio of 10-80:1-10:5-40 Methyl tetrachloride is compounded. [0003] The inventor has verified through long-term experiments that the above-mentioned several herbicidal compositions mainly have the following defects: [0004] 1), by testing several specific proportions disclosed by the above-mention...

AI Technical Summary

Problems solved by technology

For example, wettable powders are easy to cause product sticking, are not easy to disperse and suspend in water, or block the nozzle, and cause precipitation in the sprayer, resulting in uneven spraying and easy to cause phytotoxicity in corn leaves and other parts.

[0006] 3), compounding problem, by carrying out toxicity test, thermal storage stability test and mixing co-toxicity coefficient measurement to several specific proportions disclosed by the above-mentioned several herbicidal compositions, it is found that no obvious synergistic effect can be achieved

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