浙江农业学报 ›› 2025, Vol. 37 ›› Issue (6): 1309-1318.DOI: 10.3969/j.issn.1004-1524.20240456

• 环境科学 • 上一篇    下一篇

不同有机物料对土壤微生物生物量、矿质氮含量与水稻产量的影响

林小兵1,2(), 黎江3, 成艳红1,*(), 王斌强1, 何绍浪1,2, 黄尚书1, 黄欠如1   

  1. 1.江西省红壤及种质资源研究所 耕地改良与质量提升江西省重点实验室,国家红壤改良工程研究中心,农业农村部江西耕地保育科学观测试验站,江西 南昌 331717
    2.江西农业大学 国土资源与环境学院,江西 南昌 330045
    3.南京农业大学 资源与环境科学学院,江苏 南京 210095
  • 收稿日期:2024-05-23 出版日期:2025-06-25 发布日期:2025-07-08
  • 作者简介:林小兵(1992—),男,江西丰城人,博士,助理研究员,主要从事土壤资源与环境生态研究。E-mail:linxiaobing14@mails.ucas.ac.cn
  • 通讯作者: *成艳红,E-mail:yanhongch007@163.com
  • 基金资助:
    国家自然科学基金(42267055);江西省现代农业产业技术体系建设项目(JXARS-16)

Effects of organic materials on soil microbial biomass, mineral nitrogen content and rice yield

LIN Xiaobing1,2(), LI Jiang3, CHENG Yanhong1,*(), WANG Binqiang1, HE Shaolang1,2, HUANG Shangshu1, HUANG Qianru1   

  1. 1. Key Laboratory of Arable Land Improvement and Quality Improvement of Jiangxi Province, National Engineering and Technology Research Center for Red Soil Improvement, Jiangxi Province Scientific Observation and Experimental Station of Arable Land Conservation, Ministry of Agriculture and Rural Affairs, Jiangxi Institute of Red Soil and Germplasm Resources, Nanchang 331717, China
    2. College of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, China
    3. College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2024-05-23 Online:2025-06-25 Published:2025-07-08

摘要: 采用田间小区试验,以常规化肥为对照(CK),研究了减肥条件下配施不同有机物料[葛渣堆肥(PC)、葛渣生物质炭堆肥(PBCC)、葛渣蚯蚓堆肥(PVCC)、秸秆生物质炭(BC)、牛粪蚯蚓堆肥(VC)]对晚稻不同生育期土壤溶解有机碳(DOC)、硝态氮(NO 3 --N)、铵态氮(NH 4 +-N)、微生物生物量碳(MBC)、微生物生物量氮(MBN)含量和还原性物质总量、水稻产量的影响。结果表明:在晚稻成熟期,与CK相比,施用有机物料各处理的土壤MBC含量显著(P<0.05)增加89.37%~161.84%,BC处理的土壤MBN含量显著增加108.36%,BC、PC、PVCC处理的土壤NO 3 --N含量显著增加51.16%~103.88%,VC、BC处理的土壤NH 4 +-N含量分别显著增加44.39%、37.07%,VC、PVCC处理的土壤DOC含量分别显著增加59.70%、50.99%。各处理相比,水稻产量并无显著差异。综上,在减肥条件下配施适宜的有机物料可以提高土壤肥力,减少化肥用量,且不引起水稻减产,该试验条件下,以PVCC处理的效果相对更好。

关键词: 有机物料, 蚯蚓堆肥, 矿质氮, 水稻, 产量

Abstract:

In the present study, a field plot experiment was conducted to investigate the effect of application of organic materials[Radix puerariae residues compost (PC), compost of Radix puerariae residues and biochar (PBCC), vermicompost of Radix puerariae residues (PVCC), straw biochar (BC) and vermicompost of cow dung (VC)] with reduced amount of chemical fertilizer on content of soil dissolved organic carbon (DOC), nitrate nitrogen (NO 3 --N), ammonium nitrogen (NH 4 +-N), total reducing substances, microbial biomass carbon (MBC), microbial biomass nitrogen (MBN) and rice yiel, with the common fertilization as control (CK). It was shown that at the maturity stage, all the treatments with application of organic materials significantly (P<0.05) increased soil MBC content by 89.37%-161.84% than that of CK. Beseides, compared with the CK, BC treatment significantly increased soil MBN content by 108.36%; BC, PC, PVCC treatments significantly increased soil NO 3 --N content by 51.16%-103.88%; VC and BC treatments significantly increased soil NH 4 +-N content by 44.39%, 37.07%, respectively; VC and PVCC treatments significantly increased soil DOC content by 59.70% and 50.99%, respectively. There was no difference in rice yield among treatments. In general, application of proper organic material with reduced amount of chemical fertilizer could improve soil fertility, decrease the input of chemical fertilizers without any adverse effect on rice yield. Under this experiment condition, PVCC treatment showed the best performance.

Key words: organic materials, vermicomposting, mineral nitrogen, rice, yield

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