Herbicide for bean field and preparation method thereof

Abstract

The invention discloses a herbicide for a bean field. The herbicide is characterized by comprising the following components in part by weight: 20 to 90 parts of 5 percent refined quizalofop missible oil; 20 to 150 parts of 48 percent aqueous bentazon and 5 to 30 parts of 10 percent fluoroglycofen-ethyl missible oil. A method for preparing the herbicide comprises the following steps of: adding the 5 percent refined quizalofop missible oil into the 48 percent aqueous bentazon; stirring and mixing the mixed solution; and mixing the 10 percent fluoroglycofen-ethyl missible oil with the two solutions to obtain the herbicide for the bean field. When the herbicide is sprayed in the bean field, a plurality of weeds can be killed at one time. The herbicide is safe and reliable, has a terminating rate of 99.4 percent, reduces the use amount of a single herbicide and reduces cost and labor intensity simultaneously. The herbicide for the bean field can enlarge a weed-killing spectrum, can radically kill a plurality of weeds quickly at one time, has no harmful effect on the bean field and after-cultured plants and is a harmless bean field post-emergency herbicide.

Description

technical field [0001] The invention relates to a chemical medicine for weeding and a preparation method thereof, in particular to a special herbicide for soybean fields and a preparation method thereof. Background technique [0002] There are many types of leguminous crops. There are many weeds mixed with it, the quantity is large, and the damage is serious. There are many grasses, sedges and broad-leaved weeds such as crabgrass, goosegrass, foxtail, barnyardgrass, cocklebur, cocklebur, iron amaranth, amaranth, and goosegrass, which become the weed advantage of legume crops population. [0003] Existing chemical herbicides for soybean fields are selective to weeds in soybean fields. The herbicides currently used in soybean fields are Doul, acetochlor and other pre-emergence herbicides; there are also post-emergence herbicides such as Gai Cao Neng, He Cao Ke, Wei Ba, Ke Kuo Le, Huwei, Bentasone, and Acetofen herbicide. If weed grass can effectively control the hazards o...

AI Technical Summary

Problems solved by technology

The above two types of herbicides cannot be used continuously for a single period, not only cannot completely solve the grass shortage problem, but will also cause the evolution of the dominant population of weeds, which will reduce the weeding effect, and the double use will increase the labor load and increase the cost.