盐胁迫下氮磷钾肥对虉草离子吸收与分布的影响

doi:10.11733/j.issn.1007-0435.2014.06.026

草地学报 ›› 2014, Vol. 22 ›› Issue (6): 1318-1323.DOI: 10.11733/j.issn.1007-0435.2014.06.026

盐胁迫下氮磷钾肥对虉草离子吸收与分布的影响

张永亮¹, 王学愿¹, 刘杨¹, 程铭²

1. 内蒙古民族大学农学院, 内蒙古通辽 028042;
2. 内蒙古科左后旗草原工作站, 内蒙古甘旗卡 028100

收稿日期:2014-02-24 修回日期:2014-05-30 出版日期:2014-12-15 发布日期:2014-12-01
作者简介:张永亮(1959-),男,内蒙古包头人,博士,教授,主要从事牧草栽培与生态研究,E-mail: zyl8802@163.com
基金资助:
内蒙古科技厅应用技术研发项目(20120426);内蒙古民族大学科研创新团队建设计划项目(NMD10-03);通辽市与内蒙古民族大学科技合作项目(SXYB2012077)资助

Effects of Different NPK Fertilizer Rates on the Ion Absorption and Distribution of Reed Canarygrass(Phalaris arundinacea) Under Salt Stress

ZHANG Yong-liang¹, WANG Xue-yuan¹, LIU Yang¹, CHENG Ming²

1. Department of Agronomy, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia 028042, China;
2. Grassland Management Station of Kezuohou county, Ganqika, Inner Mongolia 028100, China

Received:2014-02-24 Revised:2014-05-30 Online:2014-12-15 Published:2014-12-01

摘要/Abstract

摘要：

以通草1号虉草(Phalaris arundinacea ‘Tongcao No.1’)为试验材料,采用盐胁迫(300 mmol·L^-1 NaCl)与不同氮磷钾肥配施处理的沙土盆栽试验方法,分析盐胁迫下氮磷钾肥对虉草K⁺, Na⁺, Mg²⁺, Ca²⁺ 和Cl^-吸收与分布的影响,并探讨氮磷钾肥水平与离子含量间的相关性.结果表明:随着氮、磷、钾肥水平增加,虉草体内 K⁺, Mg²⁺和Ca²⁺含量升高,而Na⁺和Cl^-含量下降,同时K⁺/Na⁺, Mg²⁺/Na⁺和Ca²⁺/Na⁺比值升高.氮磷钾肥施量与虉草Na⁺含量间成显著负相关,与K⁺和Mg²⁺含量间成显著正相关(P<0.05).在3种肥料中,氮肥对虉草K⁺, Na⁺, Mg²⁺, Ca²⁺ 和Cl^-含量的影响最明显,钾肥对Mg²⁺和Cl^-含量影响较明显,而磷肥对Ca²⁺和Mg²⁺含量影响较明显.

关键词: 虉草, 氮磷钾肥, 盐胁迫, 离子吸收

Abstract:

The ion absorption and distribution of reed canarygrass under salt stress(300 mmol·L^-1 NaCl) were studied using pot sand culture experiment under a rain shelter for understanding the changes of K⁺, Na⁺, Mg²⁺, Ca²⁺ and Cl^- contents and the correlations between ion contents and different NPK levels. The results showed that the contents of K⁺, Mg²⁺ and Ca²⁺ increased and the contents of Na⁺ and Cl^- decreased in reed canarygrass seedling under salinity stress. The ratios of K⁺/Na⁺, Mg²⁺/Na⁺ and Ca²⁺/Na⁺ increased with the increase of NPK fertilizer level. The Na⁺ content of reed canarygrass was a significant negative correlation with NPK level, whereas the K⁺ and Mg²⁺ content of reed canarygrass was a significant positive correlation with NPK level (P<0.05). Nitrogen fertilizer had the most significant effect on the K⁺, Na⁺, Mg²⁺, Ca²⁺ and Cl^- contents of reed canarygrass compared with others. Potassium fertilizer had more effect on the Cl^- and Mg²⁺contents of reed canarygrass,whereas phosphate fertilizer had more effect on the Ca²⁺ and Mg²⁺contents of reed canarygrass than others.

Key words: Reed canarygrass, NPK fertilizer, Salt stress, Ion absorption

中图分类号:

S324
S543.6

张永亮, 王学愿, 刘杨, 程铭. 盐胁迫下氮磷钾肥对虉草离子吸收与分布的影响[J]. 草地学报, 2014, 22(6): 1318-1323.

ZHANG Yong-liang, WANG Xue-yuan, LIU Yang, CHENG Ming. Effects of Different NPK Fertilizer Rates on the Ion Absorption and Distribution of Reed Canarygrass(Phalaris arundinacea) Under Salt Stress[J]. Acta Agrestia Sinica, 2014, 22(6): 1318-1323.

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盐胁迫下氮磷钾肥对虉草离子吸收与分布的影响

Effects of Different NPK Fertilizer Rates on the Ion Absorption and Distribution of Reed Canarygrass(Phalaris arundinacea) Under Salt Stress

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