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抑制剂尿素施用对芹菜生长和品质的影响

刘永刚1,2;武志杰1;陈利军1;张丽莉1;孙志梅1,2;史云峰1,2;隽英华1,2   

  1. 1中国科学院沈阳应用生态研究所,沈阳 110016;2中国科学院研究生院,北京 100039

  • 收稿日期:2006-02-17 修回日期:2006-05-24 出版日期:2006-09-10 发布日期:2006-09-10

Effects of inhibitors-amended urea on celery growth and its quality

LIU Yonggang1,2; WU Zhijie1; CHEN Lijun1; ZHANG Lili1; SUN Zhimei1,2;SHI Yunfeng1,2; JUAN Yinghua1,2   

  1. 1Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016, China;2Graduate University of Chinese Academy of Sciences,Beijing 100039, China

  • Received:2006-02-17 Revised:2006-05-24 Online:2006-09-10 Published:2006-09-10

摘要: 在盆栽条件下,研究了添加硝化抑制剂双氰胺、硝化抑制剂3,5-二甲基吡唑、硝化抑制剂双氰胺与脲酶抑制剂氢醌组合的尿素(D-U、DMP-U、H-D-U)对芹菜生长及硝酸盐含量等影响。结果表明,施用抑制剂尿素能提高芹菜的地上部干重及其占总生物量的比例,降低芹菜叶、茎中的硝酸盐含量,提高芹菜叶、茎中的维生素C、氨基酸和粗蛋白的含量。H-D-U对减少芹菜体内的硝酸盐累积具有最明显的效果。

关键词: 光合作用, 蒸腾作用, 气孔阻力, 环境因子, 相关关系

Abstract: With pot experiment, this paper studied the effects of urea amended with dicyandiamide (D-U), 3,5-dimethylpyrazole (DMP-U), and dicyandiamide plus hydroquinone (H-D-U) on the growth of celery and its quality. The results showed that applying test urea fertilizers could enhance the aboveground biomass and its proportion to total biomass, decrease the nitrate content of leaf and stem, while increase their vitamin C, amino acid, and crude protein contents. H-D-U had the best effect in decreasing the nitrate accumulation in celery tissues.

Key words: Photosynthesis, Transpiration, Stomatal resistance, Environmental factors, Correlation