Composite microorganism bacterial agent promoting tobacco leaf growth, applications and tobacco leaf cultivation method

Abstract

The invention relates to a composite microorganism bacterial agent and a preparation method therefor, and concretely relates to a composite microorganism bacterial agent promoting tobacco leaf growth, applications in tobacco leaf growth and a tobacco leaf cultivation method. The composite microorganism bacterial agent is a solution containing a bacterial strain P22, a bacterial strain Yj2-a and lactic acid bacteria. The bacterial strain P22 is Brevundimonas diminuta preserved in China General Microbiological Culture Collection Center (CGMCC) and the preservation number is CGMCC No. 4122. The bacterial strain Yj2-a is Bacillus subtilis preserved in China General Microbiological Culture Collection Center (CGMCC) and the preservation number is CGMCC No.4121. The composite microorganism bacterial agent can raise the whole quality of tobacco leaves, raises the proportion of superior tobacco leaves, coordinates nutrition, raises the tobacco leaf yield, raises disease resistance and stress resistance of tobacco strains, and achieves purpose of biological control.

Description

technical field [0001] The invention relates to a composite microbial bacterial agent and a preparation method thereof, in particular to a composite microbial bacterial agent for promoting the growth of tobacco leaves and its application in tobacco leaf growth and a tobacco leaf cultivation method. Background technique [0002] At present, most of the microbial agents used in the tobacco planting stage are single strains screened on the surface of tobacco leaves, and the metabolic activities of the strains are used to change some specific technical indicators of tobacco leaves. According to the effect, there are three types: (1) increase nutrients and increase tobacco leaf yield; (2) antagonize tobacco pathogenic bacteria and improve tobacco stress resistance; (3) change the internal chemical composition of tobacco leaves and improve tobacco leaf quality. The effect of a single microorganism is limited, and often only one of the three effects can be achieved, or only a part ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned shortcomings in the prior art that a single bacterial strain is not systematic in improving the quality of tobacco leaves, the present invention provides a composite microbial bacterial agent, which can improve the overall quality of tobacco leaves, increase the proportion of superior tobacco leaves, coordinate nutrition, and increase tobacco leaf output; Improve the disease resistance and stress resistance of tobacco plants to achieve the purpose of biological control