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Ternary efficient bactericide for rice in seedling stage

A technology of fungicides and rice seedlings, applied in the direction of fungicides, biocides, biocides, etc., to achieve the effects of more white roots, improved root system development, and increased annual output

Inactive Publication Date: 2013-05-01
DANDONG TIANXIANG PESTICIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to provide a kind of rice seedling stage ternary high-efficiency fungicide, to overcome the deficiencies that existing fungicides exist at present

Method used

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  • Ternary efficient bactericide for rice in seedling stage
  • Ternary efficient bactericide for rice in seedling stage
  • Ternary efficient bactericide for rice in seedling stage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment one fungicide indoor efficacy test

[0026] (1) Experimental drugs: metalaxyl, thiram and dexazone.

[0027] (2) Test materials and methods: selection of test bacteria and medium.

[0028] The strains to be tested were provided by the fungicide group of the Pesticide Bioassay Center of Shenyang Research Institute of Chemical Industry. The diseased strains were collected from Sujiatun District, Shenyang City, the main rice production area in Liaoning Province. The purified strains of Rhizoctonia solani obtained through isolation, cultivation and purification, The medium was PDA potato agar medium.

[0029] (3) Drug compound ratio design

[0030] Compound I: Metalaxyl: Fumeishuang: Dixon=2:2:1;

[0031] Compound I: Metalaxyl: Fumeishuang: Dixon=1:2:1;

[0032] Compound I: Metalaxyl: Fumei: Dikesone = 1:2:2.

[0033] (4) Test concentration design

[0034] The treatment concentrations of the three compound agents and thiram are 5.0ppm, 2.5ppm, 1.25ppm, 0.62...

Embodiment 2

[0046] Example 2 Pesticide field efficacy test report

[0047] (1) Basic conditions of the test field:

[0048] Test crops: rice.

[0049] Control object: Rice blight.

[0050] Test soil pH value: 7.6.

[0051] Organic matter content: 2.2%.

[0052] (2) Experimental Design and Arrangement

[0053] Test agent: 40% metalaxyl · thiram · dexon wettable powder.

[0054] Control agent: 50% thiram wettable powder; 25% metalaxyl wettable powder; 55% dikexon wettable powder.

[0055] The total area of ​​the test site: 84 square meters.

[0056] Application method: spray method.

[0057] Liquid volume: 0.51 kg / M 2 .

[0058] Crop growth period when spraying: rice 1 leaf 1 heart stage.

[0059] (3) Survey content and method

[0060] Efficacy: Investigate the disease on May 15 before transplanting, take 3 points for each plot, each point is 0.04 square meters, investigate the total number of plants and the number of diseased plants, calculate the number of diseased plants and t...

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Abstract

The invention relates to a ternary efficient bactericide for rice in the seedling stage. The ternary efficient bactericide for rice in the seedling stage is a wettable pulvis prepared through mixing a ternary efficient bactericide, rooting powder, a surfactant and a plurality of trace elements, the ternary efficient bactericide comprises thiram, metalaxyl and fenaminosulf, and the surfactant is a wetting agent, a dispersant and a sustained release agent. The ternary efficient bactericide for rice in the seedling stage, which is a ternary complex formulation product having a substantial synergistic effect, has the advantages of disease control, simultaneous seedling emergence, root growth promotion, seedling rate improvement, use convenience, low cost, effect ensure through momentary preparation, seed dressing use or spray use, no appearance of a bud burning phenomenon, and safe and reliable use.

Description

technical field [0001] The invention relates to a three-element high-efficiency fungicide at the seedling stage of rice. Background technique [0002] When rice is transplanted, it is often prone to diseases such as rice seedling dryness, dryness, root rot, and rotten seedlings. In order to prevent the occurrence of these diseases, there are many rice seedling fungicides on the market, but these fungicides have many shortcomings. : (1) The fungicides are binary compounds with poor complementarity, which makes the seedlings prone to drug resistance; (2) The fungicides have a small area of ​​action and a single absorption method, and the application effect is not good; (3) The effects of these fungicides The dosage form of seed coating agent is mostly suspension seed coating agent, which is easy to precipitate and the activity decreases; (4) this kind of fungicide does not contain micro-fertilizer and rooting ingredients, which cannot play the role of strong roots and strong s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N61/00A01N59/16A01N59/14A01N51/00A01N47/26A01N43/38A01N37/46A01N37/06A01P21/00A01P3/00
Inventor 王岩
Owner DANDONG TIANXIANG PESTICIDE
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