Microbial fertilizer for control of potato scab and preparation method thereof

Abstract

The invention discloses a microbial fertilizer for control of potato scab and a preparation method thereof. The raw materials for preparation of the microbial fertilizer include: Bacillus aryabhattai, Bacillus safensis powder, Streptomyces nashvillensis powder, Streptomyces bellus, potassium fulvate, and cottonseed powder. The strains for compounding the microbial fertilizer have the characteristics of strong adaptability, good stability, coexistence, separability from soil, and strong bacteriostasis to pathogenic bacteria, also make rational use of the interaction between microorganisms, and combine with high-tech production and fermentation technology to produce the high quality product. The microbial fertilizer can effectively antagonize the pathogenic bacteria of potato scab, and has the effects of fixing nitrogen, stimulating plant growth, and improving crop quality, etc., thereby achieving the purposes of production increase and high yield.

Description

technical field [0001] The invention belongs to the technical field of microbial fertilizers, and in particular relates to a microbial fertilizer for preventing and treating potato scab and a preparation method thereof. Background technique [0002] Potatoes, dicotyledonous plants, Solanaceae, herbaceous plants of the genus Solanum, are the fourth largest crops in the world except wheat, rice and corn. my country is the world's largest potato producer, with a planting area of ​​1 / 4 of the world's potato planting area, and output accounting for 1 / 5 of the world's total. In 2012, my country's potato planting area reached 553,000 hectares, and its output reached 18.5525 million tons. On January 6, 2015, the Chinese Academy of Agricultural Sciences, the Chinese Seed Association, and the National Food and Nutrition Advisory Committee held a seminar on the development strategy of potatoes as a staple food in Beijing, with the theme of potatoes as a staple food and national food se...

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Problems solved by technology

[0006] Cui Guochen et al. disclosed in patent numbers: 2013106658443, 2013106658439, and 2013106658246 the application research of a microbial agent in antagonizing potato scab. The microbial agent uses Bacillus subtilis, actinomycetes and Streptomyces roseus Bacteria, prepared into a fermentation liquid, can efficiently antagonize potato scab pathogens, stimulate plant growth, improve crop quality, and achieve the purpose of increasing production; Qiao Changsheng et al. disclose a microbial fertilizer for preventing and treating potato scab and its preparation in Patent No. 2015109095764 , in the method of use, according to the microbial fermentation agent, the mass ratio of compound nutrients is 0.5-2:1, and the respective fermentation broths of Bacillus amyloliquefaciens, Bacillus thuringiensis and Pseudomonas fluorescens are 1:1:1 The mass ratio is mixed, and the obtained microbial fertilizer is diluted and poured on potato tubers, but the fermentation liquid is generally difficult to preserve for a long time; Zhao Xingmin discloses a kind of organic fertilizer for preventing potato scab in the patent No. Calcium, sulfur powder, pentachloronitrobenzene powder, mainly rely on chemical raw materials to play a preventive effect

Zhou Bo et al. disclosed a strain of Bacillus amyloliquefaciens and its application in the prevention and treatment of potato scab in Patent No. 2014102728901, and also protected a kind of biological fertilizer, including said Bacillus amyloliquefaciens and organic fertilizer; due to the diversity of pathogenic bacteria and synchronous evolution characteristics, a single antagonistic strain cannot achieve a very ideal control effect. Therefore, many biological functions of bio-control bacteria need to rely on the synergy between two or more strains of bacteria to play a better role.

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