Effects of Soil Nitrogen and Salt Concentration on Growth and Nitrogen Uptake of Salicornia europaea

doi:10.7522/j.issn.1000-694X.2013.00440

JOURNAL OF DESERT RESEARCH

2014, Vol. 34

Issue (5): 1277-1284 DOI: 10.7522/j.issn.1000-694X.2013.00440

Effects of Soil Nitrogen and Salt Concentration on Growth and Nitrogen Uptake of Salicornia europaea

Yin Hailong^1,2, Tian Changyan¹, Ren Qian¹, Chen Chunxiu¹, Huang Jian¹

1. State Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China

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Abstract Effects of nitrogen concentration (0.3 g·kg^-1,N₁;0.6 g·kg^-1,N₂;1.2 g·kg^-1,N₃;2.4 g·kg^-1,N₄) and salinity (2.5 g·kg^-1,S₁;5.0 g·kg^-1,S₂;7.5 g·kg^-1,S₃) on growth, nitrogen uptake and utilization of Salicornia europaea were studied by experiment of potted plant. The results showed that: (1) Application of nitrogen could promote the growth of S. europaea, the dry weight reached the maximum when nitrogen application was N₂ and plant height reached the maximum when nitrogen application was N₁, and effect of nitrogen application on growth of S. europaea seedlings was related the salinity; (2) The highest nitrogen application rate and the most dry matter achieved by nitrogen application was difference in different salinity, it showed that S₃12, nitrogen productivity and nitrogen use efficiency decreased with the increase of nitrogen application; (3) Nitogen application significantly promoted the increase of nitrogen content and nitrogen uptake of S. europaea organs, and nitrogen content and nitrogen uptake of S. europaea organs showed that shoot>stem>root at a same nitrogen level; (4) Assimilating branches osmotic potential of S. europaea decreased with increasing salinity in the same nitrogen level, and assimilating branches osmotic potential of S. europaea decreased with increasing nitrogen application in the same salinity and the osmotic adjustment ability increased; (5) Application of nitrogen could increase photosynthetic pigments content of S. europaea assimilating branches and improve photosynthetic efficiency, and strength the adaptability to salt environment.

Key words: nitogen Salicornia europaea growth and development osmotic pressure

Received: 27 March 2013 Published: 20 September 2014

ZTFLH:

Q945.79

Corresponding Authors: 田长彦（Email：tianchy@ms.xjb.ac.cn） E-mail: tianchy@ms.xjb.ac.cn



	Articles by authors
	Yin Hailong
	Tian Changyan
	Ren Qian
	Chen Chunxiu
	Huang Jian

Cite this article:

Yin Hailong, Tian Changyan, Ren Qian, Chen Chunxiu, Huang Jian. Effects of Soil Nitrogen and Salt Concentration on Growth and Nitrogen Uptake of Salicornia europaea. JOURNAL OF DESERT RESEARCH, 2014, 34(5): 1277-1284.

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http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00440 OR http://www.desert.ac.cn/EN/Y2014/V34/I5/1277

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