Weeding composition for paddy field

A herbicidal composition and paddy field technology, applied in the direction of herbicides, algicides, biocides, animal repellents, etc., can solve the problem of complex grass, can not completely solve the problem of weeds in farmland, weeds produce drug resistance, etc. Problems, to achieve the effect of reducing material use, reducing processing, and reducing energy consumption

Inactive Publication Date: 2016-11-09
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Chemical weed control is one of the main means of weed control in paddy fields, and the use of a single compound herbicide can easily lead to weed resistance
At the same time, when weeds occur in paddy fields, t...

Method used

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  • Weeding composition for paddy field
  • Weeding composition for paddy field
  • Weeding composition for paddy field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: Composition Pesticide Formulation Technology.

[0024] 20% 2-chloro-2,6'-diethyl-N-(2-propoxyethyl)acetanilide 1% 3-trifluoromethyl-N-(5,8-dimethoxy- [1,2,4]triazolo[1,5-c]pyrimidin-2-yl)benzenesulfonamide dispersible oil suspension: 2-chloro-2,6'-diethyl-N-(2- Propoxyethyl) acetylanilide 20%, 3-trifluoromethyl-N-(5,8-dimethoxy-[1,2,4]triazolo[1,5-c]pyrimidine-2 - Base) benzene sulfonamide 1%, chlorpyridine 4.5%, sodium lignosulfonate 4%, clay 2%, NNO 2%, silicon magnesium silicate 2%, calcium dodecyl sulfonate 4%, organic Silicone 3%, Peanut Oil 3%, Methyl Oleate to 100%. Put the above materials into the reactor mixer together, stir for 2 hours, open the feed valve at the bottom of the kettle, inject the materials into the multi-stage sand mill for grinding, and the fineness of the ground materials is 98% after passing through 5-10um. Put it in a high shear emulsification kettle for 4 hours.

[0025] 20% 2-chloro-2,6'-diethyl-N-(2-propoxyethyl)acetani...

Embodiment 2

[0027] Example 2: Indoor toxicity assay.

[0028] Test method: use soil irrigation method (NY / T 1155.5-2006), in an area of ​​0.01m 2 Fill the pot with a certain amount of soil to 3 / 4 of the pot, and then water from the top of the pot to make the soil completely moist to saturated. Sow 15-20 seeds of the target weeds evenly on the surface of the pot soil, cover with 1 cm of fine soil, and place them in the greenhouse for cultivation. After 24 hours, each pot was irrigated with 10ml of medicinal solution quantitatively, and each treatment was repeated 4 times, and the treatment without chemical was set as the control. After the treatment, the test materials were placed in the greenhouse for cultivation, and the growth of the target weeds was regularly observed. Always keep a 1-2cm water layer in the treatment pot. After 20 days, the damage symptoms and growth inhibition of the target were visually observed, and the fresh weight of the above-ground part was weighed, and the vi...

Embodiment 3

[0049] Example 3: The composition controls weeds in paddy fields.

[0050] Experimental crops: transplanted into paddy fields, 5 days after transplanting.

[0051] Application method: water 15L per hectare and apply by throwing off, keep 3-5cm water layer for 5-10 days after application.

[0052] Test agent and dosage:

[0053] (1#) 20% 2-chloro-2,6'-diethyl-N-(2-propoxyethyl) acetylanilide 1% 3-chloro-2-methyl-N-(5,8 -Dimethoxy-[1,2,4]triazolo[1,5-c]pyrimidin-2-yl)benzenesulfonamide suspension concentrate, active ingredient dosage 200ga.i. / ha;

[0054] (2#) 20% 2-chloro-2,6'-diethyl-N-(2-propoxyethyl) acetylanilide 1% 3-chloro-2-methyl-N-(5,8 -Dimethoxy-[1,2,4]triazolo[1,5-c]pyrimidin-2-yl)benzenesulfonamide suspension concentrate, active ingredient dosage 400ga.i. / ha;

[0055] (3#) 20% 2-chloro-2,6'-diethyl-N-(2-propoxyethyl) acetylanilide 1% 3-chloro-2-methyl-N-(5,8 -Dimethoxy-[1,2,4]triazolo[1,5-c]pyrimidin-2-yl)benzenesulfonamide suspension concentrate, active ingred...

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Abstract

The invention relates to a weeding composition for a paddy field. The effective component of the weeding composition comprises a compound (A) and a compound (B), wherein (A) is 2-chloro-2,6'-diethyl-N-(2-propyloxyethyl)acetanilide, and (B) is one selected from a group consisting of 3-chloro-2-metyl-N-(5,8-dimethoxy-[1,2,4]triazolo[1,5-c]pyrimidin-2-yl)benzsulfamide and 3-trifluoromethyl-N-(5,8-dimethoxy-[1,2,4]triazolo[1,5-c]pyrimidin-2-yl)pyridinesulfonamide. The weeding composition has synergistic effect and a broadened weeding spectrum and is applicable to prevention and treatment of weeds in the paddy field.

Description

technical field [0001] The invention relates to a compound pesticide combination and its application technology, in particular to a paddy field herbicide composition. Background technique [0002] Chemical weed control is one of the main means of weed control in paddy fields, and the use of a single compound herbicide can easily lead to weed resistance. At the same time, when weeds occur in paddy fields, the grass phases are complex, and grasses, sedges, and broad-leaved weeds are mixed, and the use of a single compound herbicide will show some defects and defects. Limitations, can not completely solve the weeds in farmland. [0003] 2-Chloro-2,6'-diethyl-N-(2-propoxyethyl) acetylanilide belongs to amide herbicide compounds, which can be absorbed through plant hypocotyl, mesocotyl and coleoptile, slightly It has absorption, directly interferes with the protein synthesis in weeds, and has an indirect effect on photosynthesis and respiration. The seedlings of the affected w...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N37/22A01P13/00
CPCA01N43/90A01N37/22
Inventor 陈佛祥王礼文朱刚吴泽伟张志伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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