Herbicides special for flax and method of preparing the same

Abstract

A special flax weedicide and a preparation method thereof belong to the chemical medicine and production technology. The weedicide consists of isooctyl 2-methyl-4-chloro, quizalofop-ethyl, bromoxynil octanoate, emulsifier and dimethylbenzene solution. Partial dimethylbenzene solution is injected into a reaction kettle, all quizalofop-ethyl and bromoxynil octanoate are sequentially poured into the reaction kettle under the state of stirring to be stirred; after the quizalofop-ethyl and the bromoxynil octanoate are solved, all isooctyl 2-methyl-4-chloro and emulsifier and the rest dimethylbenzene solution are poured into the reaction kettle to be stirred and then a sample is taken for analyzing, if the sample is eligible, the preparation is obtained. The weedicide has the characteristics of wide weed control spectrum, low cost, high efficiency of killing weeds, improving the yield of the flax, ensuring economic benefit and simple preparation method.

Description

technical field [0001] The invention belongs to chemical medicine and preparation technology, and mainly relates to a special herbicide for flax crops and a manufacturing process thereof. Background technique [0002] The monocotyledonous and dicotyledonous weeds in the flax field are mixed, with many types and large quantities, causing serious damage. In Heilongjiang Province, more than a dozen families and more than 20 species of weeds in flax fields have been identified. The flax original stem and seed yield reduction caused by weeds every year are all at 15-20%, and severe plots cannot even be harvested and become extinct. Therefore, weeding in flax field is an important link in flax field management. Flax is a flat-sowed and densely planted crop. The effective number of plants per square meter is about 1,500. Mechanical weeding is difficult, but chemical weeding has high efficiency, low cost, and reduces labor intensity. It is very popular among farmers. However, imp...

AI Technical Summary

Problems solved by technology

These herbicides are applied on flax, though they have effectively controlled the weeds in the flax field, but there are also various deficiencies in varying degrees, such as Nabujing, Jingwenshade, Duer, etc. for killing monocotyledonous weeds. It is an imported pesticide with high cost; dimethyltetrachloride, which kills dicotyledonous weeds, is not safe for flax and often causes phytotoxicity, seriously affecting the quality and yield of flax; chlorsulfuron is safe for flax, but it causes serious damage to subsequent crops. Residual phytotoxicity, such as corn, beet, potato, tomato, onion, melon, watermelon, pepper, eggplant, cabbage, radish, carrot, cabbage, cabbage, cucumber, etc. The residual phytotoxicity is serious, causing large-scale losses; Benda Pine is safe to flax, and has no residual phytotoxicity to subsequent crops, but the amount of use is large and the cost is high