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A kind of herbicidal composition containing clopyralid and terbuthyzine and its application

A technology of clopyralid acid and herbicidal composition, applied in the field of pesticides, can solve the problems of affecting crop yield and quality, herbicide sensitivity, lack and the like, and achieves the effect of weeding and yield-increasing, labor-saving, time-saving, broad herbicidal spectrum, and control effects. improved effect

Active Publication Date: 2021-08-17
GRAIN RES INST HEBEI ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Millet and millet are sensitive to most herbicides, which affect the yield and quality of crops
At present, there is no report on the compounded herbicidal composition of terbuthylazine and clopyralid, and there is even a lack of technology for using terbuthylazine and clopyralid in millet fields and millet fields

Method used

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  • A kind of herbicidal composition containing clopyralid and terbuthyzine and its application
  • A kind of herbicidal composition containing clopyralid and terbuthyzine and its application
  • A kind of herbicidal composition containing clopyralid and terbuthyzine and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1 60% clopyralid · terbuthyline suspension concentrate (1:8)

[0026] In the herbicidal composition containing clopyralid and terbuthyrazine, each component is: 6.67% clopyralid, 53.33% terbuthylazine, 0.02% brassinolide, alkylphenol polyoxyethylene ether phosphate 2.5%, Morwet EFW 1%, xanthan gum 1%, macrogol 20000 6%, BX822 1%, water to make up the balance.

[0027] The process steps are as follows: after mixing the original medicine, additives and water according to the weight ratio, they are pulverized by a ball mill and a sand mill, and when the particle diameter of the material reaches 2 microns, it is processed by a high-shear emulsification kettle and a homogeneous mixer. After passing the test, a 60% clopyralid-terbuthyrine suspension was prepared.

Embodiment 2

[0028] Example 2 50% clopyralid · terbuthine dry suspension concentrate (1:4)

[0029] In the herbicidal composition containing clopyralid and terbuthyzine, the components are: 10% clopyralid, 40% terbufen, 4.5% isoxadifen, 8% PEG 8000, 5% Ufoxane 2 , YUS-EP70G4%, kaolin make up the balance.

[0030] The process steps are as follows: after mixing the original drug, additives and fillers according to the weight ratio, pulverize through a sand mill, pass through a spray granulator and a dryer, exhaust the tail gas after dust removal, and make 50% bismuth after passing the test. Clopyralid · terbuthine dry suspension concentrate.

Embodiment 3

[0031] Example 3 80% clopyralid · terbuthine wettable powder (1:3)

[0032] In the herbicidal composition containing clopyralid and terbuthyrazine, the components are: 20% clopyralid, 60% terbuthylazine, 6% DT-882, 1.5% Petro AA, 5% white carbon black, Kaolin makes up the balance.

[0033] The process steps are as follows: after mixing the original drug, auxiliary agents and fillers according to the weight ratio, fully mixing and pulverizing by an airflow mill, and making 80% clopyralid · terbuthine wettable powder after passing the test.

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Abstract

A herbicidal composition containing clopyralid and terbutylazine and its application. The composition is composed of 10-90% active ingredients, the balance of auxiliaries and carriers by weight. The active ingredients are composed of The weight ratio is (1-2): (1-60) composed of clopyralid and terbutylazine. The field test results of the composition of the present invention show that when the medicine is used on the stems and leaves of millet and millet at the 2-5 leaf stage and the 2-4 leaf stage of weeds, clopyralid·terbutyrine is used at a dosage of 500 g / ha on field weeds. The total fresh weight control effect of grass reaches more than 95%. Millet and millet grow normally, and no symptoms of phytotoxicity are seen. It can be safely used for post-emergence treatment of millet and millet fields, and has significant weeding and yield-increasing effects and saves labor and labor. time effect.

Description

Technical field [0001] The invention belongs to the technical field of pesticides and relates to a herbicidal composition. Specifically, it relates to a herbicidal composition containing clopyralid and terbutyrine and its application. It is used for post-emergent stem and leaf treatment of millet fields and millet fields to prevent and control field weeds. Grass. Background technique [0002] At present, the widely used pesticides for post-emergence weeding in millet fields are 2,4-D-butyl ester, sodium dimethyl tetrachloride, etc. However, these herbicides are only effective against some broad-leaf weeds, and there are concerns about the safety of millet during use. Low (Yang Zhong, Ren Yuemei, Guo Ruifeng, et al. Effects of 2,4-Dbutyl ester on growth morphological indicators of millet [J]. Chinese Agricultural Science Bulletin, 2015, 31(30):132-138.), easy to drift and cause sensitivity There are problems such as plant poisoning and spray equipment being difficult to clea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/70A01N43/40A01P13/00
CPCA01N43/40A01N43/70
Inventor 王根平李秉华程汝宏张婷刘国庆
Owner GRAIN RES INST HEBEI ACAD OF AGRI & FORESTRY SCI
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