GU Zhiguang,XU Wenfeng,FAN Lingchao,et al.Solid Fermentation of Antagonistic Actinomycetes and Effect of Promoting Plant Growth in Pot[J].Northern Horticulture,2017,41(08):124-128.[doi:10.11937/bfyy.201708028]
拮抗放线菌固态发酵菌剂及其盆栽促生效果
- Title:
- Solid Fermentation of Antagonistic Actinomycetes and Effect of Promoting Plant Growth in Pot
- Keywords:
- actinomycetes; solid fermentation; growth promoting; antagonistic microorganisms; plant pathogenic bacteria
- 文献标志码:
- A
- 摘要:
- 以不同放线菌为试材，采用平板对峙的方法，筛选出3株强拮抗效果的放线菌，并优化其固体发酵条件，以苋菜为供试作物，研究了不同浓度固体放线菌菌剂对苋菜的促生效果。结果表明：放线菌经由固体发酵后获得的菌剂活菌数最高为1.64×1010 cfu?g-1，施用3株放线菌菌剂对苋菜均具有较强的促生效果，其中 A1和A5为黄赭色链霉菌（Streptomyces silaceus），A2为娄彻氏链霉菌（Streptomyces rochei）。A1菌剂用量为0.1 g?kg-1土时的促生效果最优，较对照增产13.35%，继续提高施用量反而抑制苋菜生长。试验结果表明，不同的放线菌菌株的作用机理和作用效果不同，施用量也有差异。
- Abstract:
- In order to explore the promoting plant growth effect of different actinomycetes,three actinomycetes strains were selected with strong antagonistic effect on two pathogens,to optimize the solid fermentation conditions.Amaranth was used as test plant,the effect of different amount of actinomycetes on growth was studied.The results showed that the highest number of solid fermentation agents reached 1.64×1010 cfu?g-1, three strains of antimicrobial actinomyces had strong promoting effect.Compared with the control treatment,the growth promoting effect of strain A1 was optimal with dosage of 0.1 g?kg-1 soil,the yield increased 13.35%.With the application rate increased,growth promoting effect was enhanced.It inhibited the growth of amaranth by more addition.It showed the different mechanism and effects of actinomycetes were different.
参考文献/References:
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备注/Memo
第一作者简介：顾志光（1988-），男，硕士，工程师，现主要从事农用微生物防治植物病害等研究工作。E-mail：guzhiguang@kingenta.com.责任作者：陈清（1968-），男，博士，教授，博士生导师，研究方向为有机废物肥料化利用及经济作物养分管理与新型肥料。E-mail：qchen@cau.edu.cn.基金项目：山东省科技重大专项（新兴产业）资助项目（2015ZDXX0502B02）。