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Acta Prataculturae Sinica ›› 2012, Vol. 21 ›› Issue (2): 99-105.

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The impacts of N fertilization and clipping on the growth and salt accumulation of Salicornia europaea

LIANG Fei1,2,3, TIAN Chang-yan1,3, ZHANG Hui1,3   

  1. 1.Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; 2.Graduate School of Chinese Academy of Sciences, Beijing 100039, China;
    3.Key laboratory of Oasis and desert environment, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
  • Received:2010-12-15 Online:2012-02-25 Published:2012-04-20

Abstract: The effects of fertilization and clipping on salt accumulation and growth of Salicornia europaea, were studied in field experiments using clipping and four nitrogen levels (0, 150, 300, 450 kg/ha). Growth, contents and accumulative amounts of K, Na, Ca, Mg of S. europaea were measured. N fertilizer application to S. europaea increased biomass and salt accumulation but the concentration trends of K, Na, Ca and Mg in terms of direction and inflection point were different. The fresh weights were higher with clipping, but the dry weights were less. Clipping led to increased contents and accumulative amounts of K, but not of Na and Ca while Mg differed depending on the timing of clipping. Na and Ca content of S. europaea handling in cutting first increased, but then decreased with nitrogen supply, The results were the opposite with no cutting. Magnesium decreased with N fertilization application during blooming and fruit stages, but increased during the maturation stage. Under the conditions of this experiment, fertilization and clipping stimulated S. europaea growth, and strengthened the effectiveness of bioremediation of saline soil.

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