浙江农业学报 ›› 2017, Vol. 29 ›› Issue (11): 1890-1896.DOI: 10.3969/j.issn.1004-1524.2017.11.16

• 环境科学 • 上一篇    下一篇

蚯蚓粪对海南甘蔗园砖红壤氮素矿化和硝化的影响

单颖1, 2, 赵凤亮1, 2, *, 邹刚华1, 2, 李玮1, 2, 何振立3   

  1. 1.中国热带农业科学院 环境与植物保护研究所,海南 海口 571101;
    2.农业部儋州农业环境科学观测实验站,海南 儋州 571737;
    3.佛罗里达大学 印第安河研究教育中心 食品与农业研究所,美国 佛罗里达 34945;
    4.埃及农业研究中心 有机农业中心实验室,埃及 开罗 12619
  • 收稿日期:2017-05-05 出版日期:2017-11-20 发布日期:2017-12-05
  • 通讯作者: 赵凤亮,E-mail:zfl7409@163.com
  • 作者简介:单颖(1990—),女,内蒙古包头人,硕士,研究实习员,主要从事农业面源污染防控与土壤改良研究。E-mail:shanying@catas.cn
  • 基金资助:
    国家公益性行业(农业)科研专项(201503106); 海南省重点研发项目(ZDYF2016149); 国家外国专家局高端外国专家项目(GDW20154600260); 中国热带农业科学院基本科研业务费专项资金(1630042016004)

Effects of vermicompost on nitrogen mineralization and nitrification of latosol in cane field in Hainan

SHAN Ying1, 2, ZHAO Fengliang1, 2, *, ZOU Ganghua1, 2, LI Wei1, 2, HE Zhenli3, ABDELAZIZ Adel M R A1, 2, 4   

  1. 1. Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China;
    2. Danzhou Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture, Danzhou 571737, China;
    3. Institute of Food and Agricultural Sciences, Indian River Research and Education Center, University of Florida, Fort Pierce, FL 34945, USA;
    4. Central Lab of Organic Agriculture, Agricultural Research Center, Giza 12619, Egypt
  • Received:2017-05-05 Online:2017-11-20 Published:2017-12-05

摘要: 为探讨蚯蚓粪对海南甘蔗园砖红壤氮素矿化和硝化的影响,采用室内培养试验,设置对照(CK)和4个蚯蚓粪添加水平的处理,研究培养过程中砖红壤pH值和总氮(TN)、NH4+-N、NO3--N、矿质氮含量的动态变化,以及氮素的矿化和硝化特征。结果表明,经过52 d的培养试验,添加蚯蚓粪的4个处理砖红壤pH值较同期CK升高0.11~0.98个单位,NO3--N和矿质氮含量分别为同期CK的1.67~6.09倍和1.21~2.83倍,NH4+-N含量较CK降低,砖红壤净矿化速率和净硝化速率分别是对照的1.47~5.13倍和2.23~8.16倍。表明施用蚯蚓粪可以促进海南甘蔗园砖红壤氮素的矿化和硝化作用。

关键词: 蚯蚓粪, 砖红壤, 氮, 矿化作用, 硝化作用

Abstract: To explore the effect of vermicompost on N mineralization and nitrification of latosol, soil was collected from a cane field in Hainan to conduct a microcosm experiment. Treatments included CK (no vermicompost was applied) and 4 ratios of vermicompost and soil mass as 1∶11, 1∶5, 1∶3 and 1∶2 were set to determine the dynamic changes of pH, total nitrogen (TN), NH4+-N, NO3--N and mineral N contents in soil. The results showed that soil pH increased by 0.11-0.98 units with vermicompost as compared to CK. NO3--N and mineral N contents in the soil with vermicompost application were 1.67-6.09 times and 1.21-2.83 times of those in the control after 52 d incubation. In contrast, NH4+-N contents in the soil were lower than that in the control. Soil net N mineralization rate and nitrification rate were 1.47-5.13 times and 2.23-8.16 times of those in the control, respectively. Overall, the increase of vermicompost application improved soil N mineralization and nitrification.

Key words: vermicompost, latosol, nitrogen, mineralization, nitrification

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