Weeding composition suitable for both pre-emergence and post-emergence of sugarcane fields and corn fields and application of weeding composition

A composition of herbicides, technology of sugarcane fields, applied in the field of pesticides

Inactive Publication Date: 2021-05-28
GUANGXI SANJING CHEM SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] There is no report on the mixed use of three herbicides with different mechanisms of action and herbicidal spectrum

Method used

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  • Weeding composition suitable for both pre-emergence and post-emergence of sugarcane fields and corn fields and application of weeding composition
  • Weeding composition suitable for both pre-emergence and post-emergence of sugarcane fields and corn fields and application of weeding composition
  • Weeding composition suitable for both pre-emergence and post-emergence of sugarcane fields and corn fields and application of weeding composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1 (thensulfuron-methyl, methenamid and sulfonylurea herbicides are compounded to the indoor toxicity determination of Nitonia chinensis)

[0046] Through indoor bioassays, the synergistic situation of compounded thiazosulfuron-methyl, methenamid and sulfonylurea herbicides was clarified, among which the types of sulfonylurea herbicides were ① pyriclosulfuron-methyl; ② chlorimuron-methyl (chlorimuron-ethyl); ③ bensulfuron methyl; ④ Nicosulfuron; ⑤ Rimsulfuron. Taking lotus seed grass (Alternanthera philoxeroides (Mart.) Griseb.) as the bioassay object, select the soil without herbicide application, pH 6.5, air-dry and sieve the soil, and put it into a plastic flower pot with a diameter of 25 cm and a depth of 30 cm (with tray). Adopt stem-leaf spray method, with reference to NY / T 1155.4-2006 Indoor Bioassay Test Guidelines for Pesticides Herbicides Part 4: Activity Determination Test Stem-leaf spray method is used for experiments, each treatment is repeated 4...

Embodiment 2

[0063] Embodiment 2 (thietonsulfuron-methyl, pyraclosulfuron and chloroacetamide herbicides are compounded to the indoor toxicity determination of Nitonia chinensis)

[0064] On the basis of Example 1, through indoor bioassays, the synergistic situation after the compounding of thiazosulfuron-methyl, pyriclosulfuron and chloroacetamide herbicides is clarified, wherein the types of chloroacetamide herbicides include ① ene Grass amine; ② Metazachlor; ③ Dimethenamid; ④ Carbetamide; ⑤ Diflufenican. Also take A. japonicus as the bioassay object, and the test method and synergistic evaluation are the same as in Example 1, and the results are shown in Table 2.

[0065] Table 2 Indoor toxicity determination of thiatonsulfuron-methyl (A), chloroacetamide herbicides (B) and chlorsulfuron-methyl (C) compound on A. japonicus

[0066]

[0067]

[0068] It can be seen from the table that the co-toxicity coefficients of thiazosulfuron-methyl, chlorsulfuron-methyl and chloroacetamide h...

Embodiment 3

[0069] Example 3 (triazolinone herbicides, methoxam and pyriclosulfuron compounded indoor toxicity determination of Nitonia chinensis)

[0070] On the basis of Examples 1 and 2, the synergistic situation of compounding triazolinone herbicides, methoxam and pyriclosulfuron was clarified through indoor biotesting, wherein the types of triazolinone herbicides are ① Thicarbazone-methyl; ②Amicarbazone; ③Sulfentrazone; ④Carfentrazone-ethyl. Also take A. japonicus as the bioassay object, the test method and synergistic evaluation are the same as in Example 1, and the results are shown in Table 3.

[0071] Table 3 Indoor toxicity determination of triazolinone herbicides (A), methoxam (B) and dichlorsulfuron-methyl (C) compound on A. chinensis

[0072]

[0073]

[0074] It can be seen from the table that when dichlorsulfuron, methoxam and thfensulfuron are compounded, each proportioning of the mixture has a difference in the survival rate of A. japonicus (E 0 -E) was higher tha...

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PUM

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Abstract

The invention aims to provide a weeding composition suitable for both pre-emergence and post-emergence of sugarcane fields and corn fields. The weeding composition is prepared from the following active ingredients in parts by weight: 1-40 parts of thiencarbazone-methyl, 1-60 parts of pethoxamid and 1-50 parts of halosulfuron methyl. The weeding composition disclosed by the invention can be used for effectively preventing and removing annual gramineous weeds, cyperaceae weeds and broadleaf weeds, is safe to growth of corns and sugarcanes, and is stable and efficient in performance.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a herbicide composition suitable for both pre-emergence and post-emergence in sugarcane fields and corn fields, a preparation method and application thereof. Background technique [0002] Corn is an important food crop and feed crop, and it is also the crop with the highest total output in the world. Its planting area and total output are second only to rice and wheat. At present, my country's sown area is about 300 million mu, ranking third among food crops, which is of great significance to my country's food security. Weed damage is an important disease that restricts the yield and quality of corn in China. The main dominant weeds in corn fields in South China include crabgrass, goosegrass, barnyard grass, red thistle, Cyperus rotundum, stinky arrowroot, wild peanuts, corngrass, Purslane, lotus seedlings, and green weeds, among which goosegrass, red thistle, and Cyperus rot...

Claims

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Application Information

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IPC IPC(8): A01N47/38A01N37/20A01N47/36A01P13/00
CPCA01N37/20A01N47/36A01N47/38
Inventor 易芬远卓民权韦茂春王超余青云杨淑兰覃沛卢秋影方冬林
Owner GUANGXI SANJING CHEM SCI & TECH
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