HU Weiyun,ZENG Xiaoyan,ZHAO Zhenhao,et al.Effects of Trichoderma harzianum on Soil Physical and Chemical Properties and Microorganisms of Three Kinds of Turf Grass on Eco Concrete[J].Northern Horticulture,2025,(13):113-120.[doi:10.11937/bfyy.20250045]
哈茨木霉菌对植被砼上三种草坪草土壤理化性质及微生物的影响
- Title:
- Effects of Trichoderma harzianum on Soil Physical and Chemical Properties and Microorganisms of Three Kinds of Turf Grass on Eco Concrete
- 文章编号:
- 1001-0009(2025)13-0113-08
- Keywords:
- Trichoderma harzianum; eco concrete; turf grass; soil physical and chemical properties; soil microorganism
- 分类号:
- S 154.3
- 文献标志码:
- A
- 摘要:
- 以地毯草(Axonopus compressus)、矮生百慕大(Cynodon dactylon×C.transvaalensis)、中华结缕草(Zoysia sinica) 3种草坪草为试材,采用盆栽试验,利用3 g·L-1浓度的哈茨木霉菌剂(Trichoderma harzianum)分别对植被砼和田园土种植的草坪草进行处理,设置清水+田园土(DCK、BCK、ZCK)、哈茨木霉菌剂+田园土(DCK-1、BCK-1、ZCK-1)、清水+植被砼(DT、BM、ZH)、哈茨木霉菌剂+植被砼(DT-1、BM-1、ZH-1)共4种处理,研究了哈茨木霉菌对草坪草生长、土壤理化性质及土壤微生物的影响,以期为植被砼的植被生长研究和生态边坡修复技术提供参考依据。结果表明:土壤理化性质方面,田园土中哈茨木霉菌剂处理可以显著提升土壤中的铵态氮(AN)、有效磷(AP)、速效钾(AK)含量;植被砼则可促进植物对营养元素的吸收利用来缓解胁迫。土壤微生物多样性方面,哈茨木霉菌剂处理导致土壤细菌群落丰度及多样性指数较对照低,其中中华结缕草的 ZH处理土壤细菌群落分布均匀度最高,物种也最为丰富。土壤微生物群落结构发生改变,变形菌门(Proteobacteria)、放线菌门(Actinobacteriota)和拟杆菌门(Bacteroidota)为主要的优势菌群,相对丰度在各处理中分别占据60.0%以上,其中哈茨木霉菌剂处理后的变形菌门相对丰度高于对照,放线菌门相对丰度则较低。
- Abstract:
- Taking Axonopus compressus,Cynodon dactylon×C.transvaalensis,and Zoysia sinica as test materials,a pot experiment was conducted.The turf grasses planted in vegetation concrete and field soil were treated with Trichoderma harzianum agent at a concentration of 3 g·L-1.Four treatments were set up,clean water+pastoral soil (DCK,BCK,ZCK),Trichoderma harzianum+pastoral soil (DCK-1,BCK-1,ZCK-1),clean water+eco concrete (DT,BM,ZH),Trichoderma harzianum+eco concrete (DT-1,BM-1,ZH-1).The effects of Trichoderma harzianum on soil physical and chemical properties and soil microorganisms of turf grass growth were studied,in order to provide reference for vegetation growth research of eco concrete and ecological slope restoration technology.The results showed that in terms of soil physical and chemical properties,the contents of ammonium nitrogen (AN),available phosphorus (AP) and available potassium (AK) in soil were significantly increased by Trichoderma harzianum treatment.Eco concrete could promote the absorption and utilization of nutrient elements by plants to alleviate stress.In terms of soil microbial diversity,the abundance and diversity index of soil bacterial community in the treatment of Trichoderma harzianum were lower than those in the control group,and the distribution uniformity of soil bacterial community in the ZH treatment group was the highest and the species were the most abundant.The soil microbial community structure changed,Proteobacteria,Actinobacteriota and Bacteroidota were the main dominant bacteria groups,and their relative abundance accounted for more than 60.0% in each treatment group.The relative abundance of Proteobacteria was higher than that of control group,and the relative abundance of Actinobacteriota was lower after Trichoderma harzianum treatment.
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备注/Memo
第一作者简介:胡伟云(2001-),女,硕士研究生,研究方向为园林植物与应用。E-mail:3478421742@qq.com.责任作者:胡蝶(1985-),女,博士,副教授,硕士生导师,现主要从事植物资源、植物系统与进化等研究工作。E-mail:hudie.16@163.com.基金项目:湖北省荆州市科技发展计划资助项目(2021BC21)。收稿日期:2025-01-06