山西农业大学学报（自然科学版）2025，Vol.45Issue(5)：48-59,12.DOI:10.13842/j.cnki.issn1671-8151.202408049
有机肥配施化肥对设施土壤-作物系统内稳性特征的影响
Effects of combined application of organic and chemical fertilizers on homeostatic characteristics in greenhouse soil-crop systems
摘要
Abstract
[Objective]Integrated organic-inorganic fertilization proves more effective than chemical fertilizer alone improving the crop growth environment.This study investigated the impact of different fertilization regimes on ecological stoichiometry and system stability in greenhouse soil-crop systems,which was crucial for guiding sustainable agricultural management.[Methods]A greenhouse experiment with tomato-cucumber rotation was conducted from 2022 to 2023 in Fangshan District,Beijing.Five fertilization treatments were established:T0(no fertilizer),T1(chemical fertilizer),T2(organic fertilizer),T3(50%chemi-cal fertilizer+50%organic fertilizer),and T4(50%chemical fertilizer+50%organic fertilizer+amendments).We analyzed 27 parameters,including soil physical properties and rhizosphere microbial community structure,to assess the homeostatic char-acteristics of the soil-crop system based on ecological stoichiometry.Two triangle models(TR1 and TR2)were employed to calculate system sustainability indices and evaluate the impacts of different fertilization practices on system homeostasis.[Re-sults]Cucumber plants exhibited strong homeostasis with minimal influence from fertilization treatments.In contrast,soil mi-crobial biomass carbon,nitrogen,and phosphorus were sensitive to fertilization,showing a non-homeostatic state with H(Ho-meostasis Index)<1.3.System under T3 and T4 treatments achieved a sustainable production level(H≥1.3),whereas T0 and T1 resulted in an unsustainable state(H<1.3).Model analysis confirmed that organic-inorganic fertilization significantly enhanced system sustainability.The amendment in T4 further improved stability by regulating carbon-nitrogen-phosphorus(C-N-P)cycling.The sustainability indices exhibited a significant positive correlations(P<0.01)with soil organic carbon,total ni-trogen,and microbial indices.[Conclusion]The microbial indices exhibited higher explanatory power in the TR2 model,prov-ing to be a more precise indicator of soil ecosystem functional changes.Our findings provided important insights for advancing sustainability in facility agriculture.关键词
设施土壤/轮作/内稳性特征/化学计量比/可持续性指数Key words
Facility soil/Rotation/Home characteristics/Stoichiometry/Sustainability index分类
农业科学引用本文复制引用
金梁,梁丽娜,徐森,左强,徐魁峰,李大皓,魏丹,王文,王磊,殷大伟,申惠波,王宇先,李艳,王伟..有机肥配施化肥对设施土壤-作物系统内稳性特征的影响[J].山西农业大学学报（自然科学版）,2025,45(5):48-59,12.基金项目
国家重点研发计划(2022YFD1500200) （2022YFD1500200）
北京市农林科学院科技创新能力建设专项(KJCX20240506,KJCX20230407) （KJCX20240506,KJCX20230407）
