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Weeding composition containing penoxsulam, halosulfuron methyl and pretilachlor

A technology of chlorpyrazosulfuron-methyl and penoxsulam, which is applied in agricultural herbicidal compositions and its application fields, can solve the problems of various families and genera of weeds in farmland, reduce adverse effects, reduce drug costs, Drug effect exerts rapid effect

Inactive Publication Date: 2015-10-14
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of a single compound type herbicide cannot solve the weeds of various families and genera in the farmland, and all of them will show some defects and limitations

Method used

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  • Weeding composition containing penoxsulam, halosulfuron methyl and pretilachlor
  • Weeding composition containing penoxsulam, halosulfuron methyl and pretilachlor
  • Weeding composition containing penoxsulam, halosulfuron methyl and pretilachlor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: Indoor toxicity test.

[0023] Test agents: penoxsulam, chlorpyrazosulfuron-methyl, pretilachlor.

[0024] Drug configuration design: penoxsulam single agent is prepared as 4, 8, 12 g.a.i. / ha solution for standby; The agent is configured as 100, 150, 200g.a.i. / ha solution for standby; the mixture of penoxsulam, chlorpyrazosulfuron and pretilachlor is configured

[0025] 4+5+100, 4+5+100, 4+5+150, 4+10+100, 4+10+100, 4+10+150, 4+15+100, 4+15+100, 4+ 15+150, 8+5+100, 8+5+100, 8+5+150, 8+10+100, 8+10+100, 8+10+150, 8+15+100, 8+15+ 100, 8+15+150, 12+5+100, 12+5+100, 12+5+150, 12+10+100, 12+10+100, 12+10+150, 12+15+100, 12+15+100, 12+15+150g a.i. / ha solution for use.

[0026] Test method: Put a certain amount of soil in a plastic pot with a height of 6 cm and a diameter of 9 cm, sow 15 to 20 seeds of the target weed in the plastic pot, cover with 0.5 to 1 cm thick fine soil, and place it in the greenhouse for cultivation. Spray treatment was carried out wh...

Embodiment 2

[0038] Embodiment two: preparation process embodiment.

[0039] In the following examples, the active ingredients are penoxsulam technical, chlorpyrazosulfuron technical and pretilachlor technical, and the percentages of each component are percentages.

[0040] 3% penoxsulam · 2% chlorpyrazosulfuron · 40% pretilachlor wettable powder: penoxsulam 3%, chlorpyrazosulfuron 2%, pretilachlor 40%, chlorpyramid 5%, pull open powder 3%, K-12 5%, sodium butyl naphthalene sulfonate 5%, dioctyl sulfosuccinate sodium salt 5%, sodium methylene bis-naphthalene sulfonate 5%, kaolin supplement 100 %. The above-mentioned materials are mixed uniformly, crushed mechanically and then crushed by air flow, and mixed uniformly to obtain 3% penoxsulam · 2% chlorpyrazosulfuron · 40% pretilachlor wettable powder.

[0041]0.1% penoxsulam · 0.1% chlorpyrazosulfuron · 2.8% pretilachlor granules: penoxsulam 0.1%, chlorpyrazosulfuron 0.1%, pretilachlor 2.8%, kaolin 6%, Sticky powder 1%, 1,2-propanediol 0....

Embodiment 3

[0042] Embodiment three: Field efficacy test.

[0043] On July 6, 2014, the experimental site was located in Runbei Village, Renshan Town, Huidong County, Huizhou City, Guangdong Province. The weeds in the rice transplantation field in this experiment mainly included bermudagrass, barnyardgrass and exotic sedges.

[0044] Six days after the rice was transplanted, the chemical was mixed with 10 kg of urea and sprayed. There were 5 chemical treatments in the test, and 3 repetitions were set for each treatment. Treatment agent 1 is 3% penoxsulam·2% clopyrazosulfuron-methyl·40% pretilachlor wettable powder, treatment agent 2 is 0.1% penoxsulam·0.1% clopyrazosulfuron-methyl·2.8 % pretilachlor granule, treatment agent 3 is 22% penoxsulam suspension concentrate, treatment agent 4 is 75% chlorpyrazosulfuron-methyl water dispersible granule, treatment agent 5 is 50% pretilachlor EC.

[0045] 20 days after application, the number of weeds in each treatment was counted and the control e...

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Abstract

The invention relates to a weeding composition containing penoxsulam, halosulfuron methyl and pretilachlor. The weeding composition comprises the following effective components in percentage by weight: 0.01%-20% of the penoxsulam, 0.01%-20% of the halosulfuron methyl, 0.1%-50% of the pretilachlor, and the balance of a pesticide adjuvant. The weeding composition disclosed by the invention is suitable for preventing and removing annual weeds in rice transplanting fields. The weeding composition disclosed by the invention can improve the weeding effect, extends a weeding spectrum, is low in toxicity and residues, and obviously reduces medication quantity, the number of times of medication and use cost; the effect of the composition is obviously higher than that of each single dosage, so that the weeding composition is a good novel composition medicament for preventing and removing the annual weeds in the rice transplanting fields at present.

Description

technical field [0001] The invention relates to an agricultural herbicidal composition and its application field. The active ingredients are penoxsulam, chlorpyrazosulfuron and pretilachlor, and are used for controlling annual weeds in rice transplanting fields. Background technique [0002] When weeds occur in paddy fields, the grass phase is complex, and a variety of weeds are mixed. Chemical weeding methods are one of the main means of controlling weeds in paddy fields. The use of a single compound type herbicide cannot solve the weeds of various families and genera in the farmland, and all of them will show some defects and limitations. Mixing different types of compounds has the advantages of improving the actual effect, expanding the weeding spectrum, saving time and labor, and delaying the emergence of resistance. [0003] Penoxsulam (penoxsulam) is a pyrimidine sulfonamide compound. It is absorbed through the leaves, sheaths or roots of weeds, and then transmitted t...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01P13/00A01N43/90A01N37/22
Inventor 陈佛祥冷忠国王礼文张志伟朱刚吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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