• ISSN 1008-505X
  • CN 11-3996/S
刘松忠, 何洪巨, 冯固, 陈清. 氮、硫供应对章丘大葱生长和含硫有机物含量的影响[J]. 植物营养与肥料学报, 2009, 15(4): 884-889. DOI: 10.11674/zwyf.2009.0422
引用本文: 刘松忠, 何洪巨, 冯固, 陈清. 氮、硫供应对章丘大葱生长和含硫有机物含量的影响[J]. 植物营养与肥料学报, 2009, 15(4): 884-889. DOI: 10.11674/zwyf.2009.0422
LIU Song-zhong, HE Hong-ju, FENG Gu, CHEN Qing. Effect of N and S supply on growth and organo-sulfur compounds of Zhangqiu spring onion[J]. Journal of Plant Nutrition and Fertilizers, 2009, 15(4): 884-889. DOI: 10.11674/zwyf.2009.0422
Citation: LIU Song-zhong, HE Hong-ju, FENG Gu, CHEN Qing. Effect of N and S supply on growth and organo-sulfur compounds of Zhangqiu spring onion[J]. Journal of Plant Nutrition and Fertilizers, 2009, 15(4): 884-889. DOI: 10.11674/zwyf.2009.0422

氮、硫供应对章丘大葱生长和含硫有机物含量的影响

Effect of N and S supply on growth and organo-sulfur compounds of Zhangqiu spring onion

  • 摘要: 以章丘大葱为材料,并以珍珠岩为栽培基质,采用盆栽试验研究了不同氮、硫供应水平对大葱生长前期的干物质累积及含硫有机物含量的影响。结果表明,氮、硫供应及其交互作用显著影响大葱生长和含硫有机物含量。在硫不足(SO42- 0.01 mmol/L)和硫充足(SO42- 4.00 mmol/L)供应条件下,随氮供应水平提高,大葱植株干物重明显增加,当供氮水平为N 6.0 mmol/L时,植株干物重及氮素吸收数量达到最大;增加硫素供应可显著提高植株的硫含量和总硫量。然而,硫供应不足时,随着供氮水平提高,植株含硫有机物含量逐渐下降;反之,充足供硫条件下,随着氮供应水平的提高,大葱含硫有机物含量出现先增加后降低。当供氮水平为N 12.0 mmol/L时,含硫有机物含量最高,达到7.23 μmol/g,FW。过量氮供应(N 24.0 mmol/L)则抑制植株生长,降低含硫有机物含量。因此,充足供硫条件下,氮素调控水平对保证大葱高产和高含硫有机物含量至关重要。

     

    Abstract: Effect of N and S supply on growth and organo-sulfur compounds of Zhangqiu spring onion was investigated in a potted soilless experiment. The results indicated that growth and organo-sulfur compounds of spring onion were influenced by N, S and their interactions significantly. N supply promoted plant growth and increased shoot N concentration and uptake, and S supply enhanced shoot S concentration and uptake. Concentration of organo-sulfur compounds decreased with N supply increasing under deficient S condition, and sufficient N and S supply increased organo-sulfur concentration. The highest organo-sulfur concentration (7.23 μmol/g, FW) was observed at N 12.0 mmol/L and SO42- 4.00 mmol/L, however, excessive N supply (N 24.0 mmol/L) retarded plant growth and decreased concentration of organo-sulfur compounds. Therefore, N could regulate growth and organo-sulfur compounds of Chinese spring onion with sufficient S supply.

     

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