NaCl胁迫土壤中Na+、Cl-、电导率和pH值变化规律的研究

天津农学院学报 ›› 2015, Vol. 22 ›› Issue (1): 24-28.

NaCl胁迫土壤中Na⁺、Cl^-、电导率和pH值变化规律的研究

李佳霓, 田秀平^*

天津农学院农学与资源环境学院,天津 300384

收稿日期:2014-08-30 发布日期:2015-03-31
通讯作者: 天津市科技攻关项目“饲用高油玉米相关性状的遗传研究及新品种选育”（06YFGZNC01200）; 天津市农业科技成果转化与推广项目“中单系列玉米杂交种栽培示范”（201204070）; 天津市高等学校创新团队计划“作物品质及抗逆性的遗传改良”（TD12-5017）
作者简介:李佳霓（1989-）,女,天津市人,硕士在读,主要从事作物遗传育种和土壤方面的研究。E-mail：874611127@qq.com。
基金资助:
田秀平（1965-）,女,山东泰安人,教授,博士,主要从事土壤和植物营养学的教学与科研工作。E-mail：tian5918@sohu.com。

Changes of Na⁺, Cl^-, Conductivity and pH Value in Soil under NaCl Stress

LI Jia-ni, TIAN Xiu-ping^*

College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300384, China

Received:2014-08-30 Published:2015-03-31

摘要/Abstract

摘要： 我国盐渍土面积大、分布广泛,严重影响着作物产量。为合理利用盐渍土,提高玉米的产量和品质,试验采用4种NaCl浓度,种植2个玉米品种,分5个时期对土壤中Na⁺、Cl^-、电导率和pH值的变化规律进行了研究。结果表明,随着盐胁迫浓度的增加,土壤中Na⁺、Cl^-含量与土壤溶液电导率、pH值均显著增加。土壤Na⁺含量在Ⅲ、Ⅳ时期最高,Cl^-含量在Ⅲ时期后均较高。在各时期中,郑单958的土壤pH值均小于丹玉92。各盐浓度处理的玉米根际Na⁺含量均低于非根际土壤,而Cl^-则恰好相反。各处理根际土壤pH值均小于非根际土壤。

关键词: NaCl胁迫, Na⁺, Cl^-, 电导率, pH

Abstract: The large area and wide distribution of saline soil in China seriously affects the crop yields. In order to utilize the saline soil reasonably and improve the yield and quality of maize, the four kinds of NaCl concentrations were selected, two maize varieties were planted, and it was divided into five sampling periods, then the variation rules of Na⁺, Cl^-, conductivity and pH value in soil were studied. The results show that the Na⁺, Cl^-, conductivity and pH value in soil solution increased significantly with the increase of NaCl concentration. The Na⁺ content in soil was the highest at the phase Ⅲ and Ⅳ, Cl^- contents were all high after the phase Ⅲ. The pH value in Zhengdan 958 soil was lower than that of Danyu 92 at every phase. Na⁺ contents in rhizosphere soil were significantly lower than that in non rhizosphere soil, while Cl^-contents were opposite. The pH value in rhizosphere soil solution was lower than that in non rhizosphere soil.

Key words: NaCl stress, Na⁺, Cl^-, conductivity, pH

中图分类号:

S513

李佳霓, 田秀平. NaCl胁迫土壤中Na⁺、Cl^-、电导率和pH值变化规律的研究[J]. 天津农学院学报, 2015, 22(1): 24-28.

LI Jia-ni, TIAN Xiu-ping. Changes of Na⁺, Cl^-, Conductivity and pH Value in Soil under NaCl Stress[J]. Journal of Tianjin Agricultural University, 2015, 22(1): 24-28.

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