中国农业气象 ›› 2022, Vol. 43 ›› Issue (07): 538-550.doi: 10.3969/j.issn.1000-6362.2022.07.003

• 农业生态环境栏目 • 上一篇    下一篇

菜田种养结合模式下施肥方式对土壤编码碱性磷酸酶基因微生物群落的影响

何宇,吕卫光, 郑宪清, 张翰林, 李双喜, 张娟琴, 张海韵,白娜玲   

  1. 1.上海市农业科学院生态环境保护研究所,上海 201403;2.上海海洋大学海洋生态与环境学院,上海 201306;3.农业农村部上海农业环境与耕地保育科学观测试验站,上海 201403;4.上海市农业环境保护监测站,上海 201403;5.上海市设施园艺技术重点实验室,上海 201403
  • 收稿日期:2021-09-18 出版日期:2022-07-20 发布日期:2022-07-20
  • 通讯作者: 白娜玲,副研究员,博士,主要从事微生物生态研究. E-mail:bainaling@saas.sh.cn
  • 作者简介:何宇,E-mail:646747331@qq.com
  • 基金资助:
    上海市科技兴农推广项目[沪农科推字(2021)第2-2号];国家农业环境奉贤观测实验站项目(NAES035AE03);上海市农业科学院卓越团队建设计划项目[农科创卓2022(008)]

Effects of Fertilization Regimes on Soil Alkaline Phosphatase Gene Encoding Microbial Community under the Integrated Planting and Breeding System in the Vegetable Field

HE Yu, LV Wei-guang, ZHENG Xian-qing, ZHANG Han-lin, LI Shuang-xi, ZHANG Juan-qin, ZHANG Hai-yun, BAI Na-ling   

  1. 1. Eco-environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403; 2. Faculty of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China; 3. Shanghai Agri-environmental and Cultivated Land Conservation of Scientific Observation and Experiment Station, Ministry of Agriculture and Rural Affairs, Shanghai 201403; 4. Shanghai Agri-environmental Protection Monitoring station, Shanghai 201403; 5. Shanghai Key Laboratory of Protected Horticulture Technology, Shanghai 201403
  • Received:2021-09-18 Online:2022-07-20 Published:2022-07-20

摘要: 为明确菜田种养结合模式下施肥方式对土壤编码碱性磷酸酶基因phoD的微生物群落结构和多样性的影响机制,通过Illumina MiSeq高通量测序手段,系统分析了4种不同施肥方式,即不施肥(CK)、施常规化肥(CF)、施有机肥(OF)、有机无机肥混施(MF)对花菜收获时0−20cm土层土壤理化性质、碱性磷酸酶(ALP)、微生物量磷(MBP)以及phoD微生物群落的影响。结果表明:(1)与CK相比,OF处理可显著提高土壤有机质、总氮、速效磷和Ca含量47.83%、38.46%、104.81%和69.21%(P<0.05);OF和MF处理均显著提高ALP活性;CF和OF分别显著增加MBP含量56.12%和195.16%,OF处理中MBP含量最高(105.40mg·kg−1);(2)菜田种养结合模式不同施肥处理中假单胞菌属(Pseudomonas)为优势属,CF和MF较CK显著降低了假单胞菌属相对丰度33.39%和45.52%;施肥降低土壤phoD微生物Chao1指数,MF提高其多样性(Simpson)和均匀度(Simpsoneven);(3)影响phoD微生物群落结构的关键环境因子为MBP、AP、ALP;phoD微生物α多样性指数与土壤性状指标无显著相关性。因此,菜田种养结合模式下,不同施肥处理改变了土壤理化和生物性质,从而驱动了土壤phoD微生物群落组成、结构和多样性变化。

关键词: 菜田种养结合, 施肥方式, 碱性磷酸酶, phoD基因, 高通量测序

Abstract: A field experiment was systematically conducted, using Illumina MiSeq high-throughput sequencing, to analyze the impact of four different fertilizer application regimes (CK, no fertilization; CF, conventional chemical fertilizer; OF, organic fertilizer; MF, organic-inorganic mixed fertilizer) on the soil physicochemical properties, alkaline phosphatase (ALP), microbial biomass phosphorus (MBP), and phoD (gene encoding alkaline phosphatase) microbial community in 0-20cm soil layer at cauliflower harvest season, thus identifying the underlying mechanism of effects of different fertilization regimes on the structure and diversity of phoD microbe under integrated planting and breeding system in vegetable field. The results showed that: (1) compared to CK, OF significantly increased the contents of soil organic matter, total nitrogen, available phosphorus and Ca by 47.83%, 38.46%, 104.81% and 69.21%, respectively (P<0.05); both OF and MF significantly increased ALP activity. The MBP content in CF and OF was improved by 56.12% and 195.16%, respectively, compared with CK; the MBP content in OF was the highest (105.40mg·kg−1). (2) Pseudomonas was the dominant genus under different fertilization treatments. CF and MF significantly reduced the relative abundance of Pseudomonas by 33.39% and 45.52%, respectively, compared with CK. Fertilization decreased the Chao1 index, and MF increased both the diversity (Simpson index) and evenness (Simpsoneven index) of soil phoD microorganisms. (3) MBP, AP, and ALP were the key environmental factors affecting the phoD microbial community structure. There was no significant correlation between phoD microbial α diversity indexes and soil properties. Therefore, under the integrated planting and breeding system in vegetable field, different fertilization treatments changed soil physicochemical and biological properties, and thus drove the changes of composition, structure and diversity of soil phoD microbial community.

Key words: Integrated planting and breeding system in the vegetable field, Fertilization regimes, Alkaline phosphatase, phoD gene, High-throughput sequencing