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Herbicide composition with sulfentrazone and fluroxypyr

A technology for the weight of chlorofluoropyroxyacetic acid and chlorofluoropyroxyacetic acid, which is applied in the directions of herbicides, algicides, biocides, biocides, etc. Effective, good effect, the effect of reducing the cost of use

Inactive Publication Date: 2018-11-20
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

Triazole fungicides, in special weather, will inhibit the growth of wheat by themselves, and the mixed use of fluroxypyr will only aggravate the damage
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 with sulfentrazone and fluroxypyr
  • Herbicide composition with sulfentrazone and fluroxypyr
  • Herbicide composition with sulfentrazone and fluroxypyr

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Sulfentrazone, fluroxyfen prepared suspending agent

[0024] The tested medicaments were 91% of the original medicine of sulfentrazone and 94% of the original medicine of fluroxypyr. Use an electronic balance to weigh the quantitative amount of sulfentrazone and fluroxypyr respectively, first add special emulsifier to dissolve, then add 2 times of 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 fluroxyfen is set at 22.5, 45, 90, and 180 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 fluroxyfen.

[0027] Table 1 Compound ratio of sulfentrazone and fluroxyfen

[0028] Sulfentrazone

Embodiment 2

[0029] Example 2 Sulfentrazone, fluroxyfen prepared suspending agent

[0030] Use 40% sulfentrazone suspending agent and 200g / L fluroxypyr emulsifiable concentrate to prepare 30% tolufensulfuron clofluroxy acetic acid suspending agent, dilute to make 10% tolufensulfuron clofluroxypyr Oxyacetic acid suspending agent, sulfentrazone: fluroxyfen 1:1, 2:1, 3:1, 4:1.

Embodiment 3

[0031] Example 3 Indoor Experimental Screening

[0032] No.1 test condition

[0033] The tested weeds were Artemisia solani, shepherd's purse, popona and pig's cattail. Cultivate test materials in a glass greenhouse with heating at a temperature of 15-25°C under natural light. Sow a certain amount of weed seeds in plastic pots with a diameter of 9 cm, cover the weeds with 1-2 mm of soil, put them into an enamel plate filled with water, let the water infiltrate gradually, and transfer to artificial climate after the water seeps into the soil surface room 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 22.5, 45, 90, 180 ga.i. / ha for fluroxypyr. Different doses of each medicament are mixed in pairs...

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Abstract

The invention belongs to the technical field of agricultural herbicides and provides a herbicide composition with sulfentrazone and fluroxypyr. The weight ratio of the sulfentrazone to the fluroxypyris (16:1)-(0.25:1). Advantages of the two single agents, namely the sulfentrazone and the fluroxypyr, are combined, advantages of weed control spectrums are complemented by each other, good fast-acting properties and long-lasting effects can be achieved, and the herbicide composition has a very good effect on test field weeds such as flixweed, shepherd's purse and galium aparine. By adopting the herbicide composition, herbicide controlling spectrums are widened, prevention effects are improved, the consequence that the drug resistance of weeds can be rapidly caused when a single herbicide is used can be avoided, drug resistance of the weeds can be retarded, the chemical amount can be reduced, the use cost can be reduced, and the environmental pollution can be alleviated.

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 fluroxyfen. 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 pose a major...

Claims

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Application Information

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IPC IPC(8): A01N43/653A01N43/40A01P13/00
CPCA01N43/40A01N43/653
Inventor 李美高兴祥李健张悦丽
Owner INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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