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A kind of herbicidal composition containing clopyroxyacetic acid and isoproturon and its application

A technology of triclosan and a herbicidal composition, applied in the agricultural field, can solve problems such as yield loss, achieve the effects of remarkable treatment and speed up the exertion of drug efficacy

Active Publication Date: 2020-10-16
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Weed damage is one of the main biological disasters faced in wheat cultivation. Even if various control measures are taken, the yield loss directly caused by weed damage in wheat fields exceeds 18%

Method used

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  • A kind of herbicidal composition containing clopyroxyacetic acid and isoproturon and its application
  • A kind of herbicidal composition containing clopyroxyacetic acid and isoproturon and its application
  • A kind of herbicidal composition containing clopyroxyacetic acid and isoproturon and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Screening test on the proportioning ratio of the compound preparation of clopyroxyacetic acid and isoproturon.

[0025] In order to screen the optimal formula ratio of clopyroxyacetic acid and isoproturon, a series of whole plant bioassays were carried out in artificial climate chamber.

[0026] 1.1 The weeds tested: Cucumber chinensis, Aurantia chinensis, Porcini chinensis, Prickly acorns. In weed control, wheat field weeds are usually divided into two categories: grass weeds and broadleaf weeds. The 4 kinds of grasses tested in this experiment are all malignant weeds that are seriously harmful to wheat fields at present, among which, scorpion grass and Aurantia chinensis represent the vicious weeds of Gramineae in wheat fields; .

[0027] 1.2 Dosage settings for binary compound formulation ratio screening test:

[0028] 1) The dosage settings of each single dose are as follows:

[0029] Triclopyr (A): 0 (A0), 37.5 (A37.5), 75 (A75), 150 (A150) g ​​a.i. / ...

Embodiment 2

[0088] Example 2: Determination of the Safety of Triclopyr-Isoproturon Compound on Wheat

[0089] In order to determine the safety of the compound of clopyroxyacetic acid and isoproturon on wheat, a series of whole plant bioassays were carried out in artificial climate chamber. Based on the previous results, the ratio of clopyroxyacetic acid:isoproturon=1:1.5 was used for the wheat safety test.

[0090]2.1 Test crops: Yangmai 23 and Jimai 22. Among them, Yangmai 23 is suitable for planting in the middle and lower reaches of the Yangtze River, and Jimai 22 is suitable for planting in the Huaibei region and the northern part of the Huanghuai winter wheat region.

[0091] 2.2 Dose setting: clopyroxyacetic acid + isoproturon: 0+0, 75+112.5, 150+225, 300+450g a.i. / hm 2

[0092] 2.3 Test method:

[0093] The safety test on wheat was conducted to detect the safety of the triclopyr-isoproturon compound on wheat at the 2-3 leaf stage and the end tillering stage (before the jointing...

Embodiment 3 3

[0103] Example 3 Determination of the inhibitory effect of the compound of clopyroxyacetic acid and isoproturon on resistant weeds

[0104] In order to determine the inhibitory effect of the compound of clopyroxyacetic acid and isoproturon on the serious herbicide-resistant weeds in wheat fields, a series of whole plant bioassays were carried out in artificial climate chamber. Based on the previous research results, with clopyroxyacetic acid + isoproturon at 150+225g a.i. / hm 2 、300+450g a.i. / hm 2 Safe on wheat so tested at these two doses.

[0105] 3.1 Weeds tested: Fensulfaprop-Pen, Oxaprop-Pen, Acanthus japonica, Tribesulfuron-resistant Artemisia solani, Tribesulfuron-resistant Beef Chickweed, Tribesulfuron-resistant Shepherd’s Purse, Regular oatmeal, regular Japanese kangaroo, regular wormwood, regular beef chickweed, regular shepherd's purse. Fenoxaprop-ethyl is an aryloxyphenoxypropionate herbicide, and is the most widely used herbicide for the stem and leaf treatment ...

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Abstract

The invention discloses a herbicidal composition, which is composed of triclopyr and isoproturon according to the weight ratio of 1: (0.375-6). The invention also discloses the application of the above-mentioned herbicidal composition in preventing and controlling weeds in wheat fields. The two agents can efficiently kill different groups of weeds respectively, and the combined use has obvious synergistic effect, accelerates the drug effect, reduces the dosage of herbicides, thereby improving the safety of wheat. The herbicidal spectrum of the two components complements each other. After mixed use, the herbicidal spectrum can effectively cover various common weeds in wheat fields, and has high activity against resistant weeds that are extremely difficult to control in wheat fields. The market potential is huge.

Description

technical field [0001] The invention belongs to the field of agricultural technology, and in particular relates to a herbicidal composition and its application. Background technique [0002] my country is the country with the largest wheat production in the world. The annual wheat planting area is about 24.187 million hectares (360 million mu), and the annual wheat production is about 130 million tons. The planting area and output account for 14.5% of the total crop planting area and total output of my country and 20.9%. Therefore, ensuring the stable yield and quality safety of wheat is one of the basic tasks of my country's planting industry. Weed damage is one of the main biological disasters faced in wheat cultivation. Even if various control measures are taken, the yield loss directly caused by weed damage in wheat fields exceeds 18%. At present, weed control through the use of herbicides is still the most important means of weed control in wheat fields in my country. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/30A01N43/40A01P13/00
CPCA01N43/40A01N47/30
Inventor 陈国奇张洪程霍中洋高辉刘炳亮胡雅杰宋杰辉赵灿
Owner YANGZHOU UNIV