Bacillus amyloliquefaciens FQS38 and application thereof

Abstract

The invention relates to an antibiological inoculant, wherein an effective active ingredient of the antibiological inoculant is composed of bacillus amyloliquefaciens FQS38. The antibiological inoculant is characterized by being capable of conducting colonization on the roots of tomatoes, promoting the growth of tomatoes as well as preventing and treating the soil-borne disease of the tomatoes. In addition, the antibiological inoculant can secrete protease, cellulase, siderophores, auximones, gibberellins and other antibacterial and growth promoting ingredients. The antibiological inoculant is an aqueous solution which mainly prepared from the following ingredients in proportion: bacillus amyloliquefaciens FQS38 fermentation liquor (the bacterium content is 1*1010-2*1010cfu / mL) and 0.1 to 0.5% of corrosion remover with the pH value being 5.0 to 6.0. After being diluted, the antibiological inoculant is filled into the roots of the tomatoes in the colonization process so as to prevent and treat the bacterial wilt and the marrow necrosis disease of the tomatoes; and then the subsequent root filling is carried out according to the water-fertilizer rule. After the finished drug is diluted, the effective bacterium content is 106 to 108cfu / mL. The antibiological inoculant has the advantages that the bacillus amyloliquefaciens FQS38 has a good prevention and treatment effect on the bacterial soil-borne disease of the tomatoes, can promote the growing of the tomatoes, has no toxicity and pathogenicity, is safe for people and livestock and is environment-friendly, thereby being possibly applied to field production.

Description

technical field [0001] The present invention relates to a strain of biocontrol bacteria and its application, namely Bacillus amyloliquefaciens (Bacillus amyloliquefaciens) FQS38 and its growth promoting effect on tomato and the treatment of two important bacterial soil-borne diseases of tomato (bacterial wilt and pith necrosis). prevention and control. Background technique [0002] Facility tomato planting plays an increasingly important role in my country's agricultural and rural economic development, and has become a pillar industry in modern agricultural production and an important way for farmers to increase their income. In recent years, frequent outbreaks of soil-borne diseases (fusarium wilt, bacterial wilt, bacterial pith necrosis, root rot, etc.) caused by continuous cropping of a single species have seriously threatened the sustainable development of vegetable production in facilities. The main reason for the occurrence of soil-borne diseases is that the continuou...

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Problems solved by technology

The reported biocontrol fungicides for bacterial wilt mainly include R. solanacearum and Bacillus, etc., but few biocontrol fungicides related to pituitary necrosis disease have been reported, and the biocontrol fungicides reported so far are all based on A single disease is the target of action, and the two diseases cannot be taken into account. Inappropriate medication often occurs in production, resulting in poor control effect

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