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中国农学通报

中国农学通报 ›› 2022, Vol. 38 ›› Issue (13): 84-89.doi: 10.11924/j.issn.1000-6850.casb2021-0973

所属专题： 生物技术

• 林学·园艺·园林 • 上一篇    下一篇

草珊瑚不同部位碳氮磷化学计量特征研究

罗蓉1,2(), 曹国璠1, 李金玲1,2(), 雷琳琳1,2, 王华磊1,2, 罗春丽1,2, 李丹丹1,2, 罗夫来1,2, 石敏3   

  1. 1贵州大学农学院,贵阳 550025
    2贵州省药用植物繁育与种植重点（工程）实验室,贵阳 550025
    3贵州省凯里市榕江县林业局,贵州凯里 557200
  • 收稿日期:2021-10-14 修回日期:2022-01-24 出版日期:2022-05-05 发布日期:2022-06-08
  • 通讯作者: 李金玲
  • 作者简介:罗蓉,女,1996年出生,四川广安人,在读硕士研究生,从事药用植物栽培理论与技术研究,通信地址：550025 贵州省贵阳市花溪区贵州大学农学院,E-mail： 1350752895@qq.com。
  • 基金资助:
    贵州省委省政府“贵州省药用植物繁育与种植人才基地”(黔人领发[2013]15号);贵州省教育厅“贵州省生物学一流学科建设项目”(GNYL[2017]009);贵州省教育厅“贵州省作物学重点学科”(黔学位合字ZDXK[2014]8号)

Study on the Stoichiometric Characteristics of Carbon, Nitrogen and Phosphorus in Different Parts of Sarcandra glabra

LUO Rong1,2(), CAO Guofan1, LI Jinling1,2(), LEI Linlin1,2, WANG Hualei1,2, LUO Chunli1,2, LI Dandan1,2, LUO Fulai1,2, SHI Min3   

  1. 1College of Agriculture, Guizhou University, Guiyang 550025
    2Guizhou Provincial Key Laboratory of Medicinal Plant Breeding and Planting, Guiyang 550025
    3Rongjiang County Forestry Bureau of Kaili City, Kaili, Guizhou 557200
  • Received:2021-10-14 Revised:2022-01-24 Online:2022-05-05 Published:2022-06-08
  • Contact: LI Jinling

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摘要：

探讨草珊瑚不同器官中C、N、P含量变化及化学计量特征,为草珊瑚的丰产和氮磷肥科学施用提供理论指导。以野生抚育草珊瑚为研究对象,测定不同生长时期下草珊瑚茎和叶中C、N、P含量,分析不同生长时期草珊瑚茎、叶中C、N、P含量变化特征及化学计量特征,判定草珊瑚生长的限制性营养元素。叶中碳、氮、磷含量分别为531.45~614.66、16.81~18.51、0.41~0.84 g/kg,变异系数分别为5.13%、3.60%、21.29%;茎中则为547.11~610.11、5.88~6.91、0.33~0.50 g/kg,变异系数为3.77%、5.21%、13.67%。叶中C/N、C/P、N/P分别为29.33~34.02、661.40~1311.30、20.34~44.71,茎中则为84.96~100.23、1189.74~1695.71、14.03~18.48。叶中N与P呈负相关,P与C/P、N/P均呈极显著负相关,C/P与N/P呈极显著正相关;茎中N与P呈正相关,P与N/P呈显著负相关,P与C/P呈极显著负相关,C/P与N/P呈显著正相关。草珊瑚的生长主要受N和P含量的限制,更大程度受P含量限制。因此,在林下种植草珊瑚时,考虑林地的养分供给能力,施用氮磷混合肥有利于草珊瑚对养分的吸收利用,达到提高产量和品质的目的。

关键词: 草珊瑚, 碳, 氮, 磷, 器官, 化学计量

Abstract:

The paper aims to explore the content changes and stoichiometric characteristics of carbon, nitrogen and phosphorus in different organs of Sarcandra glabra, and to provide theoretical guidance for high-yield cultivation of S. glabra and scientific application of nitrogen and phosphorus fertilizer. Taking wild tending S. glabra as the research object, the contents of C, N and P in the stems and leaves of S. glabra at different growth periods were determined, and the content variation characteristics and stoichiometric characteristics of C, N and P were analyzed to determine the limiting nutrients of S. glabra. The content of carbon, nitrogen, and phosphorus in the leaves was 531.45-614.66, 16.81-18.51 and 0.41-0.84 g/kg, respectively, and the coefficient of variation was 5.13%, 3.60% and 21.29%, respectively; the content of carbon, nitrogen, and phosphorus in the stems was 547.11-610.11, 5.88-6.91 and 0.33-0.50 g/kg, respectively, and the coefficient of variation was 3.77%, 5.21% and 13.67%, respectively. C/N, C/P and N/P in leaves were 29.33-34.02, 661.40-1311.30, and 20.34-44.71, respectively, and those in stems were 84.96-100.23, 1189.74-1695.71, and 14.03-18.48, respectively. There was a negative correlation between N and P in leaves; a very significantly negative correlation between P and C/P, as well as between P and N/P; and an extremely and significantly positive correlation between C/P and N/P. There was a positive correlation between N and P in stems; a significantly negative correlation between P and N/P; a very significantly negative correlation between P and C/P; and a significantly positive correlation between C/P and N/P. In summary, the growth of S. glabra is mainly restricted by the content of N and P, and to a great extent by the content of P. Therefore, when planting S. glabra under forests, the nutrient supply capacity of the forest land should be considered, and the application of nitrogen and phosphorus mixed fertilizers is conducive to the absorption and utilization of nutrients by S. glabra to achieve the purpose of improving yield and quality.

Key words: Sarcandra glabra, carbon, nitrogen, phosphorus, organ, stoichiometry

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