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Herbicide composition applied to wheat field for soil sealing treatment

A technology of closed treatment and herbicide, which is applied in the field of herbicide composition in wheat fields, can solve problems such as complex action mechanism, achieve good effect, delay weed resistance, and enhance control effect

Inactive Publication Date: 2021-07-02
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 applied to wheat field for soil sealing treatment
  • Herbicide composition applied to wheat field for soil sealing treatment
  • Herbicide composition applied to wheat field for soil sealing treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1 Indoor formula screening

[0025] 1. Test conditions

[0026] The tested weeds were Jiejiemai, Dasuikanmainiang, Popona, and Zhuzai. The test specimens were cultivated in a glass greenhouse with heating at a temperature of 15-25 °C under natural light. Sow the quantitative seeds of Jiejiemai, Dasuikan Mainiang, Popona, and Zhuliyan respectively in plastic pots with a diameter of 9 cm, cover with soil 1-2 mm, put them into an enamel plate filled with water, let the water Gradually infiltrate, spray the soil on the next day, dry for 1 day, and then transfer to the artificial climate chamber for cultivation.

[0027] In addition to not being able to water for 1 to 2 days after spraying, regularly replenish water with bottom seepage irrigation to maintain soil moisture.

[0028] 2. Experimental design

[0029] The test agents were 89% trifluralin original drug and 91% sulfentrazone original drug. Use an electronic balance to weigh the quantitative trifluralin...

Embodiment 2

[0042] Example 2 Field effect measurement

[0043] 1. Test conditions

[0044] Crop and cultivar selection:

[0045] The wheat variety is Jimai 22. It was mechanically sown after rotary tillage on October 12, 2018. It had just rained and the humidity was about 50%.

[0046] Cultivation conditions:

[0047] The experimental wheat field was located in Sujia Village, Licheng District, Jinan City, Shandong Province. The test site is loam soil with an organic matter content of about 1.6% and a pH value of 7.2. 50kg of controlled-release fertilizer per mu was applied at the same time as wheat sowing.

[0048] The test terrain is flat, the management is consistent, and the fertility and watering conditions are good.

[0049] Paddy was planted in the previous crop of the experimental field, and the herbicides used were fenpyrrole+cyhalofop-ethyl+fluroxypyr.

[0050] 2. Experimental design

[0051] Test drug:

[0052] 48% trifluralin emulsifiable concentrate, 40% trifluralin su...

Embodiment 3

[0066] Example 3 Field effect measurement

[0067] 1. Test conditions

[0068] Selection of crops and cultivars: Wheat, variety Jimai 22, planted on October 4, 2018.

[0069] Cultivation conditions: The experimental wheat field is located in Taiping Town, Jiyang County, Jinan City, Shandong Province. The test site is loam soil with an organic matter content of about 1.7% and a pH value of 7.4. The test terrain is flat, the management is consistent, and the fertility and watering conditions are good.

[0070] Corn was planted in the previous stubble of the experimental field, and the herbicides used were nicosulfuron+atrazine.

[0071] 2. Experimental design

[0072] Test drug:

[0073] A total of 8 treatments were designed in the experiment, 7 drug treatments and 1 blank control treatment.

[0074] 48% trifluralin emulsifiable concentrate, 40% trifluralin sulfentrame suspending agent, 40% trifluralin sulfentrame suspending agent (recommended ratio design 3 ratios through...

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Abstract

The invention discloses a herbicide composition applied to a wheat field for soil sealing treatment, and the herbicide composition comprises trifluralin and sulfentrazone, wherein the weight ratio of trifluralin to sulfentrazone is 1.25: 1-80: 1. The herbicide composition is used for preventing and removing weeds such as alopecurus myosuroides, aegilops tauschii, cleavers or descurainia sophia in wheat fields. According to the invention, the herbicide controlling spectrum is expanded, the control effect is enhanced, the fast-acting property and the persistence are effectively complemented, the rapid generation of weed resistance caused by using a single herbicide is avoided, the generation of weed drug resistance is delayed, the dosage is reduced, the use cost is reduced, and the environmental pollution is alleviated.

Description

technical field [0001] The technical field of the pesticide herbicide of the present invention particularly relates to a herbicide composition used for soil sealing treatment in wheat fields. 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/653A01N33/18A01P13/00
CPCA01N33/18A01N43/653
Inventor 高兴祥李美李健房锋
Owner INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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