含PGPR菌株LZ-8生物育苗基质的研制与促生效应研究  

Development of Biological Matrix Produced by PGPR Strain LZ-8 and Analysis for Its Growth Promoting Effect

作　　者：文春燕[1,2] 高琦[1] 张杨[1] 李荣[1,2] 沈其荣[1] 

机构地区：[1]国家有机类肥料工程技术研究中心,江苏省固体有机废弃物资源化高技术研究重点实验室,江苏省有机固体废弃物资源化协同创新中心,南京农业大学资源与环境科学学院,南京210095 [2]南京农业大学淮安研究院,江苏淮安223005

出　　处：《土壤》2016年第2期414-417,共4页Soils

基　　金：国家高技术研究发展计划(863计划)项目(2013AA102802);淮安市科技支撑计划项目(SN201301);国家大学生创业训练项目(201410307089);南京市科技计划项目(201505041);苏北专项(BN2015082);南京农业大学SRT项目(1413C10);江苏省“青蓝工程”项目资助

摘　　要：根际促生细菌(PGPR)与普通育苗基质联合形成生物育苗基质,能够有效促进PGPR菌株的根际定殖,从而增强菌株促生效果的发挥。本研究以辣椒和番茄两种经济作物为供试材料,采用拌土的方式向基质中添加PGPR菌株LZ-8发酵液形成生物育苗基质,研究了该生物基质对这两种作物苗期的促生效果及种苗移栽后大田产量的增加情况。结果表明:含PGPR菌株的生物育苗基质对辣椒和番茄苗期均具有显著的促生效果,其中苗期辣椒和番茄的株高、茎粗、叶面积、鲜重和干重分别比对照高出22%、15.9%、33.6%、21.84%、31.25%和26.8%、29.4%、62%、72.7%、83.3%;生物基质所育种苗移栽至大田后显著增加了辣椒和番茄的产量,分别比对照增产22%和11%。Combining plant growth promoting rhizobacteria （PGPR） with common seedling substrate to create biological matrix could enhance the root colonization ability of the strain and subsequently improve the promoting ability of the PGPR strain for plant growth. In this study, effects of novel biological matrix produced by PGPR strain Bacillus pumilus LZ-8 on the nursery growth and field yield of two economic crops, pepper and tomato, were investigated. Results showed that application of novel biological matrix significantly increased the plant height, stem diameter, leaf area, and the fresh and dry weights by 22%, 15.9%, 33.6%, 21.84% and 31.25%, respectively, for pepper, and by 226.8%, 29.4%, 62%, 72.7% and 83.3%, respectively, for tomato, compared to the control with common seedling substrate. After being transported to the field, the treatment with seedlings grown in the biological matrix showed significant increases in the yields of pepper and tomato by 23% and 11%, compared to the control with seedlings grown in the common seedling substrate.

关 键 词：PGPR菌株 生物基质 促生作用 辣椒 番茄 

分 类 号：S144[农业科学—肥料学]