Weedicide composition

Abstract

The invention belongs to the technical field of agricultural weedicide and relates to a binary composition using quinoline Humulene and penoxsulam as effective constituents, wherein the proportion of weight parts of active components of the binary composition is 1:10 to 10:1, and the weight percent of the active components in the binary composition is between 1 percent and 99 percent. The binary composition can be prepared into various pesticide preparations such as powder, suspending agents, missible oil, oil suspension agents, aqueous emulsions, microemulsions, and the like by adopting a universal method. The weedicide composition is safe for rice and can effectively prevent and control rice field grassy weed and broad leaved weed with the lowest dosage and drug cost, and the best time for use of the composition is in a period of 2-3 leaves of the rice. The weedicide composition has simple preparation method and convenient application and is an ideal weedicide for once only preventing and weeding the grassy weed and the broad leaved weed for farmlands at home and abroad at present.

Description

technical field [0001] The invention belongs to the technical field of agricultural herbicides and relates to a binary compound herbicide composition for paddy fields. Background technique [0002] Rice is not only the most important food crop in my country, but also one of the main food crops in the world. my country's rice planting area is about 500 million mu, ranking first in food crops. There have always been a large number of weeds in rice fields in all rice areas in my country, and a large proportion of herbicides are used in rice fields. Due to the use of chemical herbicides for many years, the weed populations in my country have changed. For example, because of the "dry, wet and wet" light cultivation mode of qianjinzi is more suitable than rice, its occurrence area in paddy fields has expanded year by year, and its damage has become increasingly serious. . [0003] Among the various herbicides for paddy fields currently on the market, only cyhalofop-ethyl can effe...

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Problems solved by technology

[0006] The compound can effectively control many kinds of weeds in paddy fields, especially the control effect on Stephania chinensis is better. Its mode of action and reaction speed are similar to cyhalofop-methyl and the cost is lower, but the safety is slightly worse than that

[0007] 2-(2,2-difluoroethoxy)-N-(5,8-dimethoxy[1,2,4]triazole-[1,5-c]pyrimidin-2-yl)-6-tri Fluoromethyl-benzenesulfonamide (common name: penoxsulam) is the latest herbicide for rice field stem and leaf treatment developed by Dow Chemical Company in the United States. Herbicides for weeds and Cyperaceae weeds and good safety for rice production, but the agent is ineffective against Qianjinzi

[0008] Therefore, there is still a lack of a herbicide that has a good control effect on Gramineae and broad-leaved weeds such as Stephania chinensis, is highly safe to rice, and has an economical cost of use.

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