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Composite herbicide containing cyhalofop-butyl and pyrazosulfuron-ethyl and use method thereof

A compound herbicide and cyhalofop-butyl technology are applied in the directions of herbicides and algicides, botanical equipment and methods, applications, etc., and can solve the problems of insignificant formula effect, difficult preparation and high cost of compound herbicides

Inactive Publication Date: 2010-10-13
湖南大方农化股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The compound herbicides used in the prior art have more active ingredients, which is not only difficult to prepare, but also has high cost and lack of pertinence in herbicidal effect; there are also some compound herbicides whose formula effect is not obvious, and the composition of the formula Still needs to be improved and optimized

Method used

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  • Composite herbicide containing cyhalofop-butyl and pyrazosulfuron-ethyl and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A compound herbicide containing cyhalofop-methyl and pyrazosulfuron-methyl of the present invention, the compound herbicide is a water-dispersible granule, and the compound herbicide comprises the following components in mass fraction:

[0050] Active ingredients 52%

[0051] compound additives 10% and

[0052] Filler 38%.

[0053] The above-mentioned active ingredients are composed of cyhalofop-methyl, pyrazosulfuron-methyl and pendimethalin in a mass ratio of 1:0.3:1.3.

[0054] Above-mentioned composite auxiliary agent is made up of wetting agent sodium lauryl sulfate and dispersant lignosulfonic acid, and the mass fraction of sodium lauryl sulfate and lignosulfonic acid in composite herbicide is 4% and 6% respectively. %.

[0055] The compound herbicide of this embodiment is applied to the field after sowing and before seedlings at an application rate of 10g per mu. Under the premise of absolutely ensuring safety, the results show that the control effect on grass...

Embodiment 2

[0057] A compound herbicide containing cyhalofop-methyl and pyrazosulfuron-methyl of the present invention, the compound herbicide is a suspension formulation, comprising the following components in mass fraction:

[0058] Active ingredient 13%

[0059] Compound additives 9% and

[0060] Filler 78%.

[0061] The above-mentioned active ingredients are composed of cyhalofop-methyl, pyrazosulfuron-methyl and pendimethalin at a mass ratio of 1:0.2:1.4.

[0062] The above-mentioned composite auxiliary agent is composed of antifreeze agent glycerin and dispersant lignosulfonic acid, and the mass fractions of glycerol and lignosulfonic acid in the composite herbicide are 4% and 5% respectively.

[0063] The above-mentioned filler mainly refers to the oil material composed of water and vegetable oil.

[0064] The composite herbicide of this embodiment is applied to the field after seedlings at an application rate of 20g per mu, but not later than the initial stage of rice booting. ...

Embodiment 3

[0066] A compound herbicide containing cyhalofop-methyl and pyrazosulfuron-methyl of the present invention, the compound herbicide is a wettable powder formulation, and the compound herbicide comprises the following components in mass fraction:

[0067] Active ingredient 0.1%

[0068] compound additives 5% and

[0069] Filler 94.9%.

[0070] The above-mentioned active ingredient is composed of cyhalofop-methyl and pyrazosulfuron-methyl at a mass ratio of 1:0.3.

[0071] The above-mentioned composite auxiliary agent is composed of thickener xanthan gum and dispersant lignosulfonic acid, and the mass fractions of xanthan gum and lignosulfonic acid in the composite herbicide are 0.5% and 4.5% respectively.

[0072] The aforementioned fillers include 10.9% urea, 50% ammonium phosphate and 34% potassium chloride, accounting for the mass fraction of the compound herbicide.

[0073] The compound herbicide of the present embodiment is applied to the field after sowing at the rate o...

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Abstract

The invention relates to a composite herbicide containing cyhalofop-butyl and pyrazosulfuron-ethyl, which is divided into three types of water dispersing granules, a suspending agent and a wettable powder. The composite herbicide comprises active components, composite additives and fillers. When the composite herbicide is respectively the water dispersing granules, the suspending agent and the wettable powder, the mass fractions of the three components are respectively and differently controlled and proportioned; and the active components are prepared from the cyhalofop-butyl and the pyrazosulfuron-ethyl with the proportion of 1:(0.1-0.6) or also being compounded with 1-3 of pendimethalin. The water dispersing granule type composite herbicide and the suspending agent type composite herbicide are respectively applied with the dosages of 5-15g / acre and 15-30g / acre and are both applied preemergence or post-emergence after seeding. The wettable powder is applied with the dosage of 10-15kg / acre and is applied from a green-turning tillering phase to a booting beginning stage of rices post-emergence. The composite herbicide has the advantages of favorable weeding effect, high safety, long effective drug duration, wide weeding range, low cost and the like.

Description

technical field [0001] The invention relates to a herbicide containing organic compounds and its application method, in particular to a compound herbicide containing various organic compounds and its application method. Background technique [0002] With the development of agricultural application technology, the rice planting method has changed from the past water seedling transplanting to the dry cultivation floppy disk throwing planting, and has developed to the current direct sowing (live broadcasting) of rice seeds. At present, the planting area of ​​live broadcast fields is large and increasing rapidly. Taking Hunan as an example, according to incomplete statistics, the area of ​​live broadcast fields in Hunan has accounted for 76%, and some areas even reach 100%. The main technical problem in the direct seeding field is that the seeds of the direct seeding and the growth of weeds in the paddy field occur almost at the same time, and the original principle of weeding b...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N39/04A01N33/18A01N25/14A01N25/04A01P13/00A01G16/00C05G3/00A01G22/22
Inventor 刘松卓山李旭君史志行周尚泉廖茂泉刘娜廖范武
Owner 湖南大方农化股份有限公司
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