compound herbicidal composition

Abstract

The invention provides a compound herbicide composition. The compound herbicide composition is prepared from a first active ingredient, a second active ingredient and a third active ingredient, wherein the first active ingredient is penoxsulam; the second active ingredient is cyhalofop-butyl; the third active ingredient is 2-methyl-4-chlorophenoxy acetic acid or a derivative thereof; and the weight percent ratio of the three active ingredients is (0.1-40):(1-100):(1-100). The compound herbicide composition has the beneficial effects that by carrying out ternary compounding on the penoxsulam, cyhalofop-butyl and 2-methyl-4-chlorophenoxy acetic acid or the derivative thereof, the new composition is applied to controlling grassy weeds, broadleaf weeds and cyperaceae weeds in the rice fields, has an ideal control effect, especially has an obviously improved control effect on barnyard grass, rice weeds, xeromorphic polygonum amphibium, waterpepper, eclipta prostrate, ammannia arenarid H., crab grass, scirpus yagara, eleocharis acicularis, eleusine indica, monochoria korsakowii, paspalum distichum, moleplant seed, cyperus difformis, scirpus planiculmis and sagittaria trifolia, also can solve the problem of the dosage for controlling some novel weeds in the fields in which penoxsulam and cyhalofop-butyl are used perennially and has certain effects on rice production increase.

Description

technical field [0001] The present invention relates to a compound herbicidal composition, in particular to a new compound herbicidal combination of three-component compounding of penoxsulam, cyhalofop-ethyl and methyclochloride or its derivatives and applied to paddy fields thing. Background technique [0002] Rice is one of the main food crops in the world. Nearly half of the world's population eats rice, and its production covers all continents except the South and North Pole. At the end of the 20th century, the world's annual rice output averaged about 400 billion kilograms, and the planting area was about 1.45 billion hectares. Rice is one of the important food crops in China. The sown area of ​​rice in China accounts for about 1 / 4 of the country's food crops, about 35 million hectares per year, and the output accounts for about 50% of the total grain output. Regardless of planting area or output, it ranks first among grain crops in China. [0003] There are a lot of...

AI Technical Summary

Problems solved by technology

Because of continuous use for 3-5 years, the grasses in the field have gradually changed, some such as: dry-type amphibian Polygonum, Polygonum hydroponica, Channa sausage, Auricularial amaranthus, Cormina, Triangle grass, special-shaped sedge, cattle Felt has gradually become malignant weeds in the early and middle stages of paddy fields. At present, the main control agent is paturate, but when it is mixed with cyhalofop-ethyl, it is prone to antagonism, and it needs to be sprayed separately for control, which virtually increases the artificial cost of control. cost

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