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应用生态学报 ›› 1997, Vol. 8 ›› Issue (2): 177-180.

• 研究论文 • 上一篇    下一篇

交叉培养法研究养分对作物幼苗释放N2O的影响

陈欣, 沈善敏, 张璐, 吴杰   

  1. 中国科学院沈阳应用生态研究所, 沈阳 110015
  • 收稿日期:1996-01-11 修回日期:1996-06-11 出版日期:1997-03-25 发布日期:1997-03-25
  • 基金资助:

    国家自然科学基金(39570132);中国科学院陆地生态系统痕量物质生态过程开放实验室资助

Effect of nutritional condition on N2O emission by crop seedlings——a sand liguid cross culture study

Chen Xin, Shen Shanmin, Zhang Lu, Wu Jie   

  1. Institute of Applied Ecology, Academia Sinica, Shenyang 110015
  • Received:1996-01-11 Revised:1996-06-11 Online:1997-03-25 Published:1997-03-25

摘要: 为验证土壤中N2O能否通过植物的输导组织由叶片释放从而干扰植物直接释放N2O的定量测定,实验采用分室隔离法确证了土壤N2O对测定某些作物(如玉米、高粱)直接释放N2O的干扰;采用交叉培养法消除了这种干扰,准确地测定了大豆、玉米幼苗直接释放N2O的强度;并研究了N、P营养与植物释放N2O及体内NO3--N浓度之间的相关性.

关键词: 植物N2O释放, 养分影响, 氮, 生物炭, 积累, 牡丹, 籽粒品质, 转移

Abstract: With separated compartment culture technique, the study confirmed that N2O in soils has a great interference on the measurement of N2O emitted directly by some plants such as maize and sorghum. The interference can be effectively eliminated by means of sand liquid cross culture technique. With this technique, the intensity of N2O emitted directly by seedlings of both soybean and maize is accurately determined, and the correlations between Nand Pnutritions on the one hand and N2O emission and NO3--N concentration of crop seedlings on the another hand are obtained.

Key words: N2O emission, Plants, Effect of nutrition, nitrogen, biochar, tree peony, translocation, seed quality, accumulation