CN104982471A - A method for controlling rice blast of organic rice - Google Patents
A method for controlling rice blast of organic rice Download PDFInfo
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- CN104982471A CN104982471A CN201510414471.1A CN201510414471A CN104982471A CN 104982471 A CN104982471 A CN 104982471A CN 201510414471 A CN201510414471 A CN 201510414471A CN 104982471 A CN104982471 A CN 104982471A
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- biopesticide
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Abstract
The invention provides a method for controlling rice blast of organic rice, and the method comprises the following steps of 1, preparing a biopesticide: mixing 30 to 40 parts by weight of rhizoma imperatae, 8 to 10 parts by weight of cyrtomium rhizome, and 15 to 20 parts by weight of cortex acanthopanacis, and then crushing the mixture; adding 200 parts by weight of 60 percent of ethyl alcohol to the crushed mixture for extracting for three times, and each extracting is for 4 hours; combining and concentrating the filtrate until the ethyl alcohol is completely volatilized to obtain the biopesticide; 2, adding 30 times of water to the biopesticide for diluting before the biopesticide is used; respectively spraying on the rice when the rice is in a booting stage and a full heading stage, the rice is totally sprayed twice, and 10kg of biopesticide is used for per acre of rice at each time. The antibacterial test shows that the bacteriostasis of the biopesticide on the pathogenic bacteria of the rice blast can reach 96.3 percent, and the biopesticide has a good antibacterial effect. The method for controlling the rice blast of the organic rice is adopted, and the incidence of the rice blast is effectively reduced.
Description
Technical field
The present invention relates to a kind of method of preventing and treating organic paddy rice rice blast.
Background technology
Rice blast is one of important disease of paddy rice, can cause the significantly underproduction, and the underproduction 40% ~ 50% time serious, even No kernels or seeds are gathered, as in a year of scarcity.Ge Dao district of the world evenly occurs.This disease all has generation in various places, wherein occurs as many with leaf portion, joint portion, can cause the underproduction in various degree after generation, and especially panicle blast or joint pest occur early and weigh, and can cause dead ears so that total crop failure.In recent years, rice blast year occurring area in Guangdong is no less than 500,000 mu, and occurs increasing trend year by year, and local great outburst is much, and at present, rice blast may occur in any days in province territory, any season.
Summary of the invention
The invention provides a kind of method of preventing and treating organic paddy rice rice blast.
The invention provides a kind of method of preventing and treating organic paddy rice rice blast, step is as follows:
(1) biopesticide is prepared: pulverize after cogongrass rhizome 30-40 weight portion, rhizome of cyrtomium 8-10 weight portion, the mixing of cortex acanthopanacis 15-20 weight portion, add 60% alcohol steep 3 times of 200 weight portions, each 4 hours, merge also concentrated filtrate and volatilize completely to ethanol, obtain biopesticide;
(2), before using, biopesticide is added 30 times of water dilutions, respectively spray once, spray secondary altogether at Rise's boot period, full heading time, every mu uses biopesticide 10kg at every turn.
Bacteriostatic test proves, the bacteriostasis of biopesticide of the present invention to rice blast pathogen reaches 96.3%, has good fungistatic effect.After adopting method of the present invention to prevent and treat, can effectively reduce the rice blast incidence of disease.
Embodiment
Following embodiment is convenient to understand the present invention better, but does not limit the present invention.Experimental technique in following embodiment, if no special instructions, is conventional method.Test material used in following embodiment, if no special instructions, is commercially available.
embodiment 1
A kind of method step preventing and treating organic paddy rice rice blast of the present invention is as follows:
(1) prepare biopesticide: pulverize after cogongrass rhizome 35 weight portion, rhizome of cyrtomium 9 weight portion, the mixing of cortex acanthopanacis 18 weight portion, add 60% alcohol steep 3 times of 200 weight portions, each 4 hours, to merge and concentrated filtrate volatilizees completely to ethanol, obtain biopesticide;
(2), before using, biopesticide is added 30 times of water dilutions, respectively spray once, spray secondary altogether at Rise's boot period, full heading time, every mu uses biopesticide 10kg at every turn.
embodiment 2
A kind of method step preventing and treating organic paddy rice rice blast of the present invention is as follows:
(1) prepare biopesticide: pulverize after cogongrass rhizome 30 weight portion, rhizome of cyrtomium 10 weight portion, the mixing of cortex acanthopanacis 15 weight portion, add 60% alcohol steep 3 times of 200 weight portions, each 4 hours, to merge and concentrated filtrate volatilizees completely to ethanol, obtain biopesticide;
(2), before using, biopesticide is added 30 times of water dilutions, respectively spray once, spray secondary altogether at Rise's boot period, full heading time, every mu uses biopesticide 10kg at every turn.
embodiment 3
A kind of method step preventing and treating organic paddy rice rice blast of the present invention is as follows:
(1) prepare biopesticide: pulverize after cogongrass rhizome 40 weight portion, rhizome of cyrtomium 8 weight portion, the mixing of cortex acanthopanacis 20 weight portion, add 60% alcohol steep 3 times of 200 weight portions, each 4 hours, to merge and concentrated filtrate volatilizees completely to ethanol, obtain biopesticide;
(2), before using, biopesticide is added 30 times of water dilutions, respectively spray once, spray secondary altogether at Rise's boot period, full heading time, every mu uses biopesticide 10kg at every turn.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. prevent and treat a method for organic paddy rice rice blast, it is characterized in that: step is as follows:
(1) biopesticide is prepared: pulverize after cogongrass rhizome 30-40 weight portion, rhizome of cyrtomium 8-10 weight portion, the mixing of cortex acanthopanacis 15-20 weight portion, add 60% alcohol steep 3 times of 200 weight portions, each 4 hours, merge also concentrated filtrate and volatilize completely to ethanol, obtain biopesticide;
(2), before using, biopesticide is added 30 times of water dilutions, respectively spray once, spray secondary altogether at Rise's boot period, full heading time, every mu uses biopesticide 10kg at every turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510414471.1A CN104982471A (en) | 2015-07-15 | 2015-07-15 | A method for controlling rice blast of organic rice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510414471.1A CN104982471A (en) | 2015-07-15 | 2015-07-15 | A method for controlling rice blast of organic rice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104982471A true CN104982471A (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510414471.1A Pending CN104982471A (en) | 2015-07-15 | 2015-07-15 | A method for controlling rice blast of organic rice |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106942301A (en) * | 2017-03-28 | 2017-07-14 | 湖南神隆高科技股份有限公司 | A kind of botanical pesticide preparation of prevention and control rice blast and preparation method thereof |
| CN107155749A (en) * | 2017-06-20 | 2017-09-15 | 吕立新 | A kind of method of rice cultivation |
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| CN1470175A (en) * | 2003-05-12 | 2004-01-28 | 袁世国 | Farm chemical of Chinese berbs |
| CN104041532A (en) * | 2014-05-05 | 2014-09-17 | 邯郸市建华植物农药厂 | Efficient sterilization yield-increasing suspending agent and production method and application thereof |
| CN104058837A (en) * | 2014-05-30 | 2014-09-24 | 明光市业兴非金属材料厂 | Nutrient fertilizer for rice and preparation method thereof |
| CN104082348A (en) * | 2014-07-01 | 2014-10-08 | 任重远 | Bio-pesticide for preventing and treating rice diseases and preparation method of bio-pesticide |
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2015
- 2015-07-15 CN CN201510414471.1A patent/CN104982471A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470175A (en) * | 2003-05-12 | 2004-01-28 | 袁世国 | Farm chemical of Chinese berbs |
| CN104041532A (en) * | 2014-05-05 | 2014-09-17 | 邯郸市建华植物农药厂 | Efficient sterilization yield-increasing suspending agent and production method and application thereof |
| CN104058837A (en) * | 2014-05-30 | 2014-09-24 | 明光市业兴非金属材料厂 | Nutrient fertilizer for rice and preparation method thereof |
| CN104082348A (en) * | 2014-07-01 | 2014-10-08 | 任重远 | Bio-pesticide for preventing and treating rice diseases and preparation method of bio-pesticide |
Non-Patent Citations (3)
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| 中国农业科学院植保所农药室病虫药剂药效测定组、粮作病虫室麦病组: "土农药对几种主要病虫的室内药效测定", 《昆虫知识》 * |
| 吴降星: "《水稻病虫识别与防治图谱》", 31 July 2006 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106942301A (en) * | 2017-03-28 | 2017-07-14 | 湖南神隆高科技股份有限公司 | A kind of botanical pesticide preparation of prevention and control rice blast and preparation method thereof |
| CN106942301B (en) * | 2017-03-28 | 2017-11-21 | 湖南神隆高科技股份有限公司 | A kind of botanical pesticide preparation of prevention and control rice blast and preparation method thereof |
| CN107155749A (en) * | 2017-06-20 | 2017-09-15 | 吕立新 | A kind of method of rice cultivation |
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Application publication date: 20151021 |