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Weeding composition, pesticide, application method and application

A technology of herbicidal composition and application method, which is applied in the field of herbicidal composition, can solve the problems that chemical control cannot solve various weeds in farmland, chemical control is difficult, and a single compound cannot control multiple families and genera of weeds at the same time, and achieves the goal of overcoming It is easy to produce resistance, the drug effect is rapid, and the effect of inhibiting photosynthesis

Pending Publication Date: 2022-07-29
JIANGSU XUHUAI DISTRICT HUAIYIN AGRI SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For direct-seeding rice fields, post-emergence chemical control cannot solve a variety of weeds in farmland, and the simultaneous germination of rice seedlings and weeds in direct-seeding fields has brought great difficulties to chemical control
The use of closed treatment after sowing and pre-emergence is another effective way to solve weeds in paddy fields, but a single compound cannot control weeds of multiple families and genera at the same time, which will show some defects and limitations

Method used

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  • Weeding composition, pesticide, application method and application
  • Weeding composition, pesticide, application method and application
  • Weeding composition, pesticide, application method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 Oxadiazon, isoproturon optimal ratio screening

[0029] In order to further understand the combined effect of oxadiazone and isoproturon on weeds, a formula screening test was carried out on the mixture of oxadiazone and isoproturon.

[0030] Test materials: barnyardgrass and sausage, collected from Xiajiahu Farm, Lingqiao Township, Huaian City, Jiangsu Province in October 2017. After harvesting, they were naturally air-dried at room temperature, put into paper bags, and stored in a refrigerator at 4°C ± 0.5.

[0031] Test equipment: PWT-510 spray tower, Mettler AB135-S electronic balance, volumetric flask, triangular flask, beaker, measuring cylinder, plastic bowl, pipette, ruler, scissors, etc.

[0032] Test method: firstly weigh a certain quality of oxadiazone and isoproturon, add methanol to fully dissolve, dilute with 0.1% Tween 80 aqueous solution, prepare a single-dose mother solution, and set a series of proportions according to the purpose of mixin...

example 2

[0043] Example 2 Field efficacy test of different component ratios

[0044] 1. Test method and design:

[0045]On June 10, 2018, the test site was located in Xiajiahu Farm, Lingqiao Township, Huai'an City, Jiangsu Province. The soil pH was 7.3, the organic matter content was 0.68%, and the fertility was medium to high. The tested variety was Suxiu 867. The main weeds in the live field are barnyardgrass, sagebrush, alien sedge, and sausage.

[0046] Within 24 hours after the rice was seeded, it was irrigated in compartments and drained after 12 hours to keep the soil moist on the ridge surface without stagnant water, and then sprayed on the ridge surface with 15kg of chemical mixed with water. A total of 6 drug treatments were set up in the experiment, and each treatment was set up with 3 repetitions.

[0047] Table 3 Test design of test agents

[0048]

[0049] 2. Investigation time and method: The investigation time is 20 days after application on June 30, 2018. The inv...

Embodiment 3

[0059] Example 3 Field efficacy test of different blocking herbicides

[0060] 1. Test method and design

[0061] On June 10, 2018, the test site was located in Xiajiahu Farm, Lingqiao Township, Huai'an City, Jiangsu Province. The soil pH was 7.3, the organic matter content was 0.68%, and the fertility was medium to high. The tested variety was Suxiu 867. The main weeds in the live field are barnyardgrass, sagebrush, alien sedge, and sausage.

[0062] Within 24 hours after the rice was seeded, it was irrigated in compartments and drained after 12 hours to keep the soil moist on the ridge surface without stagnant water, and then sprayed on the ridge surface with 15kg of chemical mixed with water. A total of 6 drug treatments were set up in the experiment, and each treatment was set up with 3 repetitions.

[0063] Table 5 Test Design of Test Agents

[0064]

[0065] Investigation time and method: The investigation time was 20 days after spraying on June 30, 2018. The inves...

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Abstract

The invention provides a weeding composition, a pesticide, an application method and application, and belongs to the technical field of agricultural weeding compositions and application thereof, and the weeding composition comprises the following raw materials: oxadiargyl and isoproturon. The oxadiargyl and the isoproturon have different weeding action mechanisms, the oxadiargyl and the isoproturon are compounded and have an obvious synergistic effect, the weeding range is expanded, the defect that resistance is easily generated when a single agent is used for a long time can be overcome, the service life of the agent is prolonged, and the weeding composition has great significance on comprehensive resistance treatment of weeds. And the weeding composition provided by the invention has the advantages of rapid drug effect exertion, long lasting period, low use cost, convenience in use, time saving, labor saving and huge application and popularization prospects.

Description

technical field [0001] The present invention relates to the technical field of agricultural herbicidal compositions and their applications, in particular to a herbicidal composition, pesticides, and application methods and applications. Background technique [0002] The grass phase of weeds in paddy fields is complex, and a variety of weeds are mixed. Chemical weed control is one of the main methods of weed control in paddy fields. For the direct seeding field of rice, post-emergence chemical control cannot solve various weeds in the farmland, and the simultaneous germination of rice seedlings and weeds in the direct seeding field brings great difficulties to chemical control. The use of post-sowing and pre-emergence sealing treatment is another effective way to solve weeds in paddy fields. However, a single compound cannot control weeds of multiple families and genera at the same time, and all of them will show some defects and limitations. SUMMARY OF THE INVENTION [00...

Claims

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Application Information

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IPC IPC(8): A01N43/824A01N47/30A01P13/00
CPCA01N43/82A01N47/30
Inventor 周长勇曹凯歌徐蓬李美霞王晓飞陈亚丽巨亚雯钱新赵云霞唐艺婷
Owner JIANGSU XUHUAI DISTRICT HUAIYIN AGRI SCI RES INST