Paddy field herbicide composition and application

A paddy field herbicide and composition technology, applied in the field of pesticides, to achieve the effect of reducing the cost of medication, reducing the amount of medication, and delaying the resistance of weeds

Active Publication Date: 2014-04-30
中国中化股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application of the above compound herbicidal co

Method used

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  • Paddy field herbicide composition and application
  • Paddy field herbicide composition and application
  • Paddy field herbicide composition and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] Embodiment 1. preparation active ingredient total concentration (referred to as the total concentration) is 16% mesotrione oxadiazone acetochlor granule

[0103]

[0104] Put the above materials into the mixer and mix them evenly, then pulverize them through the jet mill, and then mix the pulverized materials through the mixer to make a wettable powder with a fineness of 98% that passes through a 325-mesh standard sieve, and then put it into the granulator Add water to granulate, dry, sieve, cool, etc. to prepare mesotrione·oxadiazone·pretilachlor granules with a total concentration of 16%.

Embodiment 2

[0105] Example 2. Preparation of Mesotrione·Copentazone·Bensulfuron-methyl Granules with a Total Concentration of 2.75%

[0106]

[0107] Put the above materials into the mixer and mix them evenly, then pulverize them through the jet mill, and then mix the pulverized materials through the mixer to make a wettable powder with a fineness of 98% that passes through a 325-mesh standard sieve, and then put it into the granulator Add water to granulate, dry, sieve, cool, etc. to prepare mesotrione·cyclopentazone·bensulfuron-methyl granules with a total concentration of 2.75%.

Embodiment 3

[0108] Embodiment 3. preparation total concentration is 16% mesotrione · oxadiazone · pretilachlor oil suspension concentrate

[0109]

[0110]

[0111] The above-mentioned materials were crushed in advance according to the proportion, added to a sand mill for grinding, and mixed by high shear to prepare a mesotrione·oxadiazone·pretilachlor oil suspension concentrate with a total concentration of 16%.

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Abstract

The invention provides a paddy field herbicide composition which comprises the following active ingredients: mesotrione A, a cyclic imide herbicide B and a paddy field herbicide C, wherein the cyclic imide herbicide B is selected from oxadiazon, oxadiargyl or pentoxaxone, and the paddy field herbicide C is selected from bensulfuron methyl, halosulfuron methyl, pyriftalid, pretilachlor, butachlor, mefenacet, penoxsulam, prometryn or simetryn. The paddy field herbicide composition is used for preventing and controlling annual and perennial weeds in paddy fields. The composition has an obvious synergistic or additive effect for controlling weeds in the paddy fields in a certain matching range, and the effect of preventing and controlling annual weeds in the paddy fields is obviously better than that of each single dose. The weed removing spectrum is expanded, the dosage is reduced, the herbicide cost is reduced, and the adverse effect of pesticides on the ecological environment is reduced.

Description

technical field [0001] The invention belongs to the field of pesticides, in particular to a paddy field herbicide composition, which is used for controlling annual and perennial weeds in paddy fields. Background technique [0002] Rice is the crop with the largest planting area in my country. There are about 100 kinds of common weeds, and the annual national rice loss rate is more than 15% due to the damage of weeds. Chemical weeding is currently the most reliable and cheapest method of weed control in paddy fields; common herbicides include mesotrione, cyclic imine herbicides, conventional paddy field herbicides, etc. [0003] Mesotrione, English common name: mesotrione, chemical name: 2-(2-nitro-4-methylsulfonylbenzoyl)cyclohexane-1,3-dione, molecular formula: C 14 h 13 N0 7 S, structural formula: [0004] [0005] Mesotrione inhibits the activity of hydroxypyruvate dioxygenase (HPPD), which converts the amino acid tyrosine to plastoquinone. Plastoquinone is a cofa...

Claims

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Application Information

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IPC IPC(8): A01N43/824A01N47/36A01N43/76A01P13/00A01N41/10A01N37/22A01N43/70
Inventor 张弘迟会伟陈召亮唐伟徐小燕郑雪松杨玉廷
Owner 中国中化股份有限公司
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