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Composition for preventing and treating black rot and black shank of tobacco roots and improving characters and quality

A technology for root black rot and a composition, applied in the agricultural field, can solve problems such as difficulty in improving tobacco growth characteristics, inability to effectively improve tobacco heavy metal and related amino acid content, etc., and achieve the effects of less harm, less damage, and reduced cadmium accumulation.

Active Publication Date: 2022-04-19
YUNNAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0040] In view of the shortcomings and actual needs of the prior art, the purpose of the present invention is to provide a composition to solve the following deficiencies of the prior art: (1) solve the existing There are biological control methods aimed at the common problem of low control efficiency of tobacco black shank and root black rot; (2) solve the problem that it is difficult to improve the growth characteristics of tobacco under the condition of low control efficiency; (3) solve the existing Biological control methods cannot effectively improve the content of heavy metals and related amino acids in tobacco

Method used

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  • Composition for preventing and treating black rot and black shank of tobacco roots and improving characters and quality
  • Composition for preventing and treating black rot and black shank of tobacco roots and improving characters and quality
  • Composition for preventing and treating black rot and black shank of tobacco roots and improving characters and quality

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Effect test

Embodiment 1

[0073] 1. Raw material

[0074] Bacillus amyloliquefaciens cd5bc, the preservation number is CCTCC NO: M 2016232, commercially available;

[0075] Streptomyces oxysporum WS-29246, the preservation number is CCTCC NO: M 2012413, commercially available;

[0076] 72% nail cream·manganese zinc wettable powder, Jiangyin Fuda Agrochemical Co., Ltd., Jiangsu Province;

[0077] LB medium: prepared by the laboratory;

[0078] Streptomyces oxysporum WS-29246 medium, prepared by the laboratory: 100g sucrose, 10g glucose, 0.1g casamino acids, 5g yeast extract powder, 21g propionsulfonic acid, K 2 SO 4 0.25g, MgCl 2 ·6H 2 O 10g, trace elements 1mL, water 1000mL, pH=7.0; the trace element formula is MnSO 4 ·7H 2 O 100mg, CuSO 4 ·7H 2 O 50mg, ZnSO 4 ·7H 2 O 100mg, CoCl 2 100mg, purified water 100mL;

[0079] Soil for test: disease-free soil in tobacco planting field

[0080] Tobacco seedlings: Yunyan 87, owned by the laboratory.

[0081] 2. Potted plant control effect experim...

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Abstract

The invention provides a composition for preventing and treating black rot and black shank of tobacco roots and improving characters and quality. The composition comprises bacillus amyloliquefaciens cd5bc, streptomyces oxysporus WS-29246 and metalaxyl-mancozeb. The preservation number of the bacillus amyloliquefaciens cd5bc is CCTCC (China Center For Type Culture Collection) NO: M 2016232; the preservation number of the streptomyces oxysporus WS-29246 is CCTCC (China Center for Type Culture Collection) NO: M 2012413. The prevention effect on tobacco black shank and tobacco root black rot can reach 90% or above, and the technical problem that the prevention effect of a conventional biological prevention and control method is not high is solved; the dosage of metalaxyl-mancozeb can be very low, and harm to soil and the environment is small; cadmium accumulation in tobacco can be effectively reduced, lysine in the tobacco can be effectively reduced, the quality of the tobacco can be improved, harm to a human body is reduced, and the method has a good application prospect.

Description

technical field [0001] The invention belongs to the field of agricultural technology and relates to tobacco planting technology, in particular to a technology for preventing and controlling tobacco root black rot and black shank and improving tobacco properties and content of tobacco-related substances. Background technique [0002] In tobacco production, root black rot [1] and blackleg [2] It is a serious soil-borne disease, which has been highly concerned by researchers. Root black rot and black shank mainly occur in my country's Yunnan, Guizhou, Hubei, Hunan, and Sichuan, and the incidence rate can reach more than 30% in severely diseased fields. If not controlled, the damage will increase year by year. [0003] Root black rot is caused by the basal fungus Thielaviopsis basicola ), the hyphae are colorless at the beginning, then turn brown and have branches, and root black rot can occur in tobacco from the seedling stage to the adult plant stage, and root black rot has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/22A01N63/28A01N37/46A01N47/14A01P3/00A01G22/45A01G13/00
CPCA01N63/22A01N63/28A01N37/46A01N47/14A01G22/45A01G13/00Y02W30/40
Inventor 敖金成李永梅李博
Owner YUNNAN AGRICULTURAL UNIVERSITY
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