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Paddy field herbicide synergistic composition

A composition and herbicide technology, applied in the direction of herbicides, algicides, biocides, biocides, etc., can solve the problems of no products, etc., and achieve the advantages of simple use, wide herbicidal spectrum and long-lasting effect Effect

Active Publication Date: 2013-07-10
河南金田地农化有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no product registered for the combination of the two in China

Method used

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  • Paddy field herbicide synergistic composition
  • Paddy field herbicide synergistic composition

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022] Example 1: 5.5% pretilachlor·oxadiazone granules (5:0.5)

[0023] Dissolve 5 grams of oxadiazone completely with 30 grams of cyclohexanone in the container, add 50 grams of pretilachlor, stir evenly, and then use high-pressure spray to evenly spray on the weighed 915 grams of soil ball particles, and fully stir After adsorption, 12% pretilachlor-oxadiazone granules can be obtained.

example 2

[0024] Example 2: 15% pretilachlor·oxadiazone water emulsion (12:3)

[0025] Dissolve 30 grams of oxadiazone and 120 grams of pretilachlor in a mixture of 80 grams of xylene and 40 grams of acetone, add 30 grams of BY14030 grams, 40 grams of 601P, start the shearing machine, and add 660 grams of deionized water while cutting . 15% pretilachlor-oxadiazone aqueous emulsion can be obtained by high-speed shearing for 30 minutes.

example 3

[0026] Example 3: 20% pretilachlor·oxadiazon soluble powder (16:4)

[0027] Mix 40 grams of oxadiazone, 160 grams of pretilachlor, 250 grams of toluene, 50 grams of safener (CGA-123407), 80 grams of K12, 240 grams of white carbon black, and 200 grams of ammonium sulfate, stir evenly, and process by jet milling , to get 20% pretilachlor · oxadiazone soluble powder

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Abstract

The invention discloses a paddy field herbicide synergistic composition. The composition is characterized by containing pretilachlor and oxadiazon serving as weeding active substances, wherein the weight ratio of the pretilachlor to the oxadiazon is (5-6%):(0.5-30%). The composition can be developed into a relatively novel film expanding oil agent formulation and a general formulation of a paddy field herbicide. The composition of the pretilachlor and the oxadiazon can enlarge the weeding spectrum and effectively prevent and control annular gramineous and broad-leaf weed such as cockspur grass, moleplant seed, paspalum, cyperus difformis, cone alkali grass, eleusine indica, eleocharis parvula, narrow-leaf alisma rhizome, ammannia baccifera, special-shaped grass, cyperus iria, ludwigia prostrata, monochoria vaginalis and the like. The composition is safe to rice, has wide weeding spectrum, good diffusion property and long effect duration and is convenient to use.

Description

technical field [0001] The invention is a pesticide herbicide composition, which belongs to the field of pesticide formulations. Background technique [0002] Pretilachlor is a selective pre-emergence treatment agent, a 2-chlorinated acetanilide herbicide, a cell division inhibitor, a highly selective rice field-specific herbicide mainly used for the control of gramineous weeds Agent, used for soil treatment to control barnyardgrass, special-shaped sedge, cow felt, bermudagrass, Alisma narrow-leaf, etc. in rice fields. Weed seeds absorb pesticides during germination, and the roots absorb poorly. Rice plants after the 4-leaf stage can decompose pretilachlor into metabolites without herbicidal activity, but germinating rice plants do not have the ability to decompose this product. It is usually used 3-5 days before transplanting. This product has poor selectivity to wet-inserted rice when it is applied alone, but it has excellent selectivity to in-line rice when it is used ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/824A01N37/22A01P13/00
Inventor 李晓红李现玲王战清赵彦超谢瑞英
Owner 河南金田地农化有限责任公司
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