溶磷细菌Enterobacteria sp EnHy-401对盐渍土壤中小麦生长的影响(英文)

被引：6

作者：

易艳梅 ^{[1
]}

黄为一 ^{[2
]}

张春霞 ^{[1
]}

机构：

[1] 长沙环境保护职业技术学院

[2] 南京农业大学生命科学学院

来源：

Agricultural Science & Technology | 2010年 / 11卷 / 06期

关键词：

溶磷细菌Enterobacteria sp.EnHy-401; 盐渍土壤; 小麦;

D O I：

10.16175/j.cnki.1009-4229.2010.06.017

中图分类号：

S144.9 [其他]; S512.1 [小麦];

学科分类号：

摘要：

盆栽试验结果表明,溶磷菌Enterobacteria sp.EnHy-401能较好地在盐渍土壤中定植,并对小麦的生长和矿质营养的吸收有促进作用。与对照相比,生长在经接菌处理盐渍土中的小麦,其地上部分和根系的干重增加了28.1%和14.6%,植株中对磷、钙、钾和镁的吸收率分别提高了34.4%、36.3%、31.5%、6.3%。该菌株所表现出来的对盐渍土壤中磷素有效性的提高、对小麦吸收K+、Ca2+、Mg2+、P等矿质营养的促进作用以及小麦生长与矿质营养元素吸收之间高度的相关性表明,溶磷菌株Enterobacteria sp.EnHy-401对盐胁迫下小麦生长的促进效应主要是通过改善盐渍土中部分矿质营养的供应,增强植株对P、Ca,Mg、K等营养元素的选择性吸收而实现,该效应受到土壤盐分和营养基质的影响。

引用

页码：141 / 146

页数：6

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