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Herbicide composition containing sulfentrazone and mesosulfuron

A technology for the weight of methyldisulfuron and methyldisulfuron, which is applied in the directions of herbicides, algaecides, biocides, biocides, etc. The effect of herb resistance and control effect enhancement

Inactive Publication Date: 2018-12-21
INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Reasonable compounding or compounding of chemical herbicides can expand the herbicidal spectrum, improve the control effect, extend the application period, reduce the dosage, reduce the risk of phytotoxicity, reduce the residue, and delay the occurrence and development of weed resistance and drug resistance Therefore, choosing the appropriate compound or mixture of herbicides is one of the most effective and economical methods to solve the above problems; however, due to the complex mechanism of action between the mixture of pesticides, whether the synergy after combination is affected by many factors , can only be verified by relying on experimental results, and cannot be expected

Method used

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  • Herbicide composition containing sulfentrazone and mesosulfuron
  • Herbicide composition containing sulfentrazone and mesosulfuron
  • Herbicide composition containing sulfentrazone and mesosulfuron

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Sulfentrazone and Mesosulfuron-methyl Suspended Concentrate

[0024] The test agents are 91% sulfentrazone original drug and 92% mesosulfuron-methyl original drug. Use an electronic balance to weigh quantitative amounts of sulfentrazone and mesosulfuron-methyl respectively, first add a special emulsifier to dissolve, then add 2 times N,N-dimethylformamide until completely dissolved, and use 0.1% The Tween-80 aqueous solution was diluted into 1% mother liquor for later use.

[0025] Sulfentrazone is set at 45, 90, 180, and 360 ga.i. / ha, and methylsulfuron is set at 4.5, 9, 18, and 36 ga.i. / ha. Different doses of each medicament are mixed in pairs to obtain different mixed doses.

[0026] See Table 1 for the ratio of sulfentrazone and methylsulfuron-methyl.

[0027] Table 1 Compound ratio of sulfentrazone and methylsulfuron-methyl

[0028] Sulfentrazone

Embodiment 2

[0029] Example 2 Sulfentrazone and Mesosulfuron-methyl Suspended Concentrate

[0030] Measure 40% sulfentrazone suspending agent, 30g / L mesosulfuron-methyl suspending agent, mix into 10% metrisulfuron-methyl sulfuron-methyl suspending agent, sulfentrazone: mesosulfuron-methyl suspending agent They are 10:1, 20:1, 30:1, 40:1 respectively.

Embodiment 3

[0031] Example 3 Indoor Experimental Screening

[0032] No.1 test condition

[0033] The tested weeds were Artemisia somnifera, Popona, jasmine and brome. Cultivate test materials in a glass greenhouse with heating at a temperature of 15-25°C under natural light. Sow a certain amount of seeds of Artemisia persicae, Popona, japonica and brome in plastic pots with a diameter of 9 cm, cover the weeds with 1-2 mm of soil, put them in an enamel dish filled with water, and let the water gradually penetrate into the pots. , after the water seeps into the soil surface, transfer it to the artificial climate chamber for use.

[0034] In addition to not watering for 1-2 days after spraying, regularly replenish water with bottom seepage irrigation to maintain soil moisture.

[0035] No.2 Experimental Design

[0036] Configure the compound herbicide according to the method in Example 1, set 45, 90, 180, 360 ga.i. / ha for sulfentrazone, and set 4.5, 9, 18, 36 ga.i. / ha for mesosulfuron. Di...

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Abstract

The invention belongs to the technical field of herbicide and provides a herbicide composition containing sulfentrazone and mesosulfuron. The weight ratio range of the sulfentrazone to the mesosulfuron is 80:1 to 1.3:1. After the sulfentrazone and the mesosulfuron are compounded, the weed control spectrums have complementary advantages, and good effect on flixweed, procumbent speedwell, bromegrassand aegilops tauschii is achieved. By the herbicide composition, the weed control spectrum is enlarged, the control effect is enhanced, rapid occurrence of herbicide resistance of the weed caused byusage of singe herbicide is avoided, occurrence of the herbicide resistance of the weed is delayed, the dosage is reduced, the use cost is reduced and environmental pollution is reduced.

Description

technical field [0001] The invention belongs to the technical field of pesticide herbicides, and in particular relates to a herbicide composition containing sulfentrazone and mesosulfuron-methyl. Background technique [0002] Wheat is one of the three major food crops in my country. Its planting area and total output are second only to rice. The national planting area is more than 30 million hectares, about 450 million mu, accounting for 22%-30% of the country's cultivated land area, about 20%-27% of the sown area, the total wheat output is about 100 million tons, reaching 22% of the total grain output (Wu Mingrong et al., 2013, Pesticides). Wheat is the main commodity grain and strategic reserve grain variety in my country, and plays an important role in grain production, circulation and consumption. The development of wheat production is of great significance to the development of my country's national economy and people's lives. [0003] However, weeds in wheat fields pos...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N43/653A01P13/00
CPCA01N43/653A01N47/36
Inventor 高兴祥李美李健房锋
Owner INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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