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Method for control over tobacco black shank

A technology for tobacco black shank disease and tobacco fields, which is applied in the field of tobacco black shank disease control, can solve problems such as restricting the development of tobacco leaves, increasing pesticide residues in tobacco leaves, and poor effect, and achieves the effects of improving tobacco leaf quality, improving tobacco leaf quality, and improving soil.

Active Publication Date: 2014-05-14
ZHENJIANG BEST ORGANIC ACTIVATED FERTILIZER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But the current method of preventing and treating tobacco black shank is less effective and cannot meet the needs of tobacco farmers, and the existing control technology will increase the residue of tobacco leaves pesticides, which restricts the development of tobacco leaves to a certain extent, so there is an urgent need for a method to control tobacco black shank. shin disease method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method of controlling tobacco black shank, comprising the steps of:

[0022] (1) Soil improvement: carry out deep soil plowing before winter, every 667m before deep plowing 2 Apply 200kg of dolomite powder;

[0023] (2) Balanced nutrition: Apply 125kg of organic and inorganic fertilizers as base fertilizer to the tobacco field through soil improvement. ≥20%, the ratio of nitrogen, phosphorus and potassium is 6:7:10;

[0024] (3) Chemical treatment: 7 days before transplanting, the tobacco seedlings were sprayed with 25 mg / mL chitosan, and 600 mg / L hymexazol was used for root dipping treatment during transplanting, and then 20 days after transplanting, 5 trillion 1.5 billion spores / L of Pseudomonas fluorescens or 1.5 billion spores / L of Bacillus subtilis. 30 days after transplanting, sample 10mmol / L salicylic acid for spray treatment, and use 1200mg / L downy mildew in the early stage of the disease Hydrochloride or 48% downy mildew · methamine copper water agent 1200...

Embodiment 2

[0028] A method of controlling tobacco black shank, comprising the steps of:

[0029] (1) Soil improvement: carry out deep soil plowing before winter, every 667m before deep plowing 2 Apply quicklime 50kg;

[0030] (2) Balanced nutrition: Apply 100kg of organic and inorganic fertilizers as base fertilizer to the tobacco field through soil improvement. ≥20%, the ratio of nitrogen, phosphorus and potassium is 6:7:10;

[0031] (3) Chemical treatment: 7 days before transplanting, the tobacco seedlings were sprayed with 10 mg / mL chitosan, and 300 mg / L hymexazol was used for root dipping treatment during transplanting, and then 20 days after transplanting, 3 trillion spores / L of Pseudomonas fluorescens or 1 billion spores / L of Bacillus subtilis for root irrigation treatment, 30 days after transplanting, sampling 5mmol / L salicylic acid for spray treatment, and 800mg / L downy mildew in the early stage of disease Hydrochloride or 48% downy mildew · methamine copper water solution 150...

Embodiment 3

[0035] A method of controlling tobacco black shank, comprising the steps of:

[0036] (1) Soil improvement: carry out deep soil plowing before winter, every 667m before deep plowing 2 Apply limestone powder 100kg;

[0037] (2) Balanced nutrition: Apply 115kg of organic and inorganic fertilizers as base fertilizer to the tobacco field through soil improvement. ≥20%, the ratio of nitrogen, phosphorus and potassium is 6:7:10;

[0038] (3) Chemical treatment: 7 days before transplanting, the tobacco seedlings were sprayed with 15 mg / mL chitosan, and 500 mg / L hymexazol was used for root dipping treatment during transplanting, and then 20 days after transplanting, 4 trillion 1.2 billion spores / L of Pseudomonas fluorescens or 1.2 billion spores / L of Bacillus subtilis. 30 days after transplanting, sample 8mmol / L salicylic acid for spray treatment, and use 1000mg / L downy mildew in the early stage of the disease Hydrochloride or 48% downy mildew · methamine copper water agent 1300 ti...

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Abstract

The invention discloses a method for control over the tobacco black shank. A soil improvement agent is added before soil is ploughed deeply in winter, organic-inorganic fertilizer is applied to a tobacco field before transplanting, stress resistance inducing substances are adopted for atomizing treatment before transplanting, in the transplanting process, an agent is used for root dipping, after transplanting, a biological agent is adopted for root irrigation, and at the initial stage of morbidity, a chemical agent is used for spraying, so that incidence and harm of the tobacco black shank are effectively controlled.

Description

technical field [0001] The invention belongs to the technical field of crop disease prevention and control, and in particular relates to a method for controlling tobacco black shank. Background technique [0002] Tobacco black shank is one of the most devastating diseases in tobacco production, also known as tobacco blight. The average incidence rate of tobacco fields in the country is 5.0-12.0%, and the incidence rate of severe plots is as high as 75%, which seriously restricts the sustainable development of tobacco. , according to incomplete statistics, the average annual incidence of tobacco black shank in my country is as high as 76373hm 2 , the output loss was 28.6926 million kilograms, and the output value loss exceeded 200 million yuan. [0003] But the current method of preventing and treating tobacco black shank is less effective and cannot meet the needs of tobacco farmers, and the existing control technology will increase the residue of tobacco leaves pesticides, ...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G13/00
Inventor 杜根平成立郑世燕
Owner ZHENJIANG BEST ORGANIC ACTIVATED FERTILIZER
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