张应华;王鹏飞;张秋;田滔;李永荟;许俊强;张国平;史静;

• 1:云南省滇台特色农业产业化工程研究中心
• 2:云南农业大学资源与环境学院

摘要(Abstract)：

土壤团聚体对土壤的功能和质量有着重要的影响，施用生物质炭对土壤团聚体结构的影响虽已有不少报道，但结合抗性植物效应不多。为探究生物质炭基改良剂(简称“改良剂”)对土壤团聚体结构及不同根肿病抗性品种的白菜生长影响，设置改良剂和品种抗性的组合盆栽试验，按不同比例将小麦秸秆生物质炭、生石灰、腐殖酸钠、玉肥复配后添加到根肿病土壤中，白菜种植90 d后收获。利用湿筛法对不同粒级的团聚体质量分数进行综合分析，同时测定不同抗性白菜的生长指标。结果表明：添加改良剂后可显著提升低抗白菜的伸展度(24.5%)与根茎直径(8.1%),还可提高其土壤团聚体平均质量直径37.9%和几何平均直径13.6%;对低抗、中抗品种的土壤团聚体稳定性、结构破坏率及分形维数的影响不显著。综上所述，改良剂对低抗白菜的生长及其土壤的团聚体形成有明显的促进作用。

关键词(KeyWords)： 环境学;生物质炭;土壤团聚体;品种抗性;根肿菌

Abstract:

Keywords:

基金项目(Foundation): 云南省高新技术产业发展项目(201805);; 昆明市科技计划项目(2019-1-H-24615);; 大学生创新创业行动基金项目(2021ZKX114)

作者(Authors): 张应华;王鹏飞;张秋;田滔;李永荟;许俊强;张国平;史静;

DOI: 10.13637/j.issn.1009-6094.2021.0117

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