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 terbutyzine and its application, the composition is composed of 10-90% active ingredients, the balance of adjuvants and carriers by weight percentage, the active ingredients are composed of The weight ratio is (1-2): (1-60) composed of clopyralid and terbuthyrine. The field test results of the composition of the present invention show that at the 2-5 leaf stage of millet and broomcorn millet, and the 2-4 leaf stage of weeds, clopyralid terbuthine 500 grams per hectare is effective against field weeds. The total control effect of the fresh weight of the grass is over 95%. The millet and millet grow normally, and no symptoms of phytotoxicity have been seen. It can be safely used for post-emergence treatment of millet and millet fields, and has a significant effect of weeding and increasing production 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, in particular to a herbicidal composition containing clopyralid and terbuthylazine and its application, which is used for post-emergence stem and leaf treatment of millet fields and millet fields to prevent and control field weeds. Grass. Background technique [0002] At present, the herbicides widely used for post-emergence weeding in millet fields are 2,4-D-butyl ester and sodium dimethyltetrachloride, etc., but these herbicides are only effective against some broad-leaved weeds, and there are safety hazards to millet during use. Low (Yang Zhong, Ren Yuemei, Guo Ruifeng, et al. The effect of 2,4-D-butyl ester on the growth and morphology of millet [J]. China Agricultural Science Bulletin, 2015, 31(30): 132-138.), easy to drift and cause sensitivity Plant phytotoxicity, spray equipment is not easy to clean and other problems. There is still a lack of...

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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