[生物气泥应用对土壤微生物群落结构和功能在小麦-大米树时期的影响]
Yu-Ying Qiao1, Hui Xi1, Na Li1
1Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
Huan jing ke xue= Huanjing kexue
|July 12, 2023
概括
生物气泥的应用会影响土壤微生物群落,改变真菌多样性和细菌结构. 虽然它有助于平衡土壤营养素,但它可能会增加小麦-大米系统中真菌病的风险.
科学领域:
- 土壤微生物学 土壤微生物学
- 农业科学 农业科学
- 环境科学 环境科学
背景情况:
- 土壤微生物群落对于营养循环和土壤健康至关重要.
- 生物气泥是一种潜在的肥料,但其对土壤生态系统的影响需要详细调查.
- 了解微生物群落的转变对于可持续的农业实践至关重要.
研究的目的:
- 研究生物气泥应用对土壤微生物群落结构和功能的影响.
- 为了比较生物气泥与常规化肥和没有添加的情况.
- 评估土壤洪水后细菌和真菌群落的变化.
主要方法:
- 一个土壤柱实验,使用三个处理方法:不添加N (CM),常规化肥 (SN) 和生物气泥添加 (SZ).
- 在土壤洪水后的第1天和第21天,Illumina高通量测序被用于分析细菌和真菌群落.
- 评估了阿尔法多样性,社区结构和功能预测 (PICRUSt,FUNGuild).
主要成果:
- 在所有治疗中,真菌α多样性从第1天降低到第21天.
- 细菌群体结构在第一天显示出明显的差异,SN与其他不同,而SZ和SN治疗在21日变得相似.
- 生物气泥的应用影响了真菌群落的组成,增加了Zygomycota,并可能造成真菌病的风险,尽管它有助于平衡土壤营养素.
结论:
- 生物气泥的应用可以平衡土壤营养素,并保持在小麦-大米草阶段的土壤生态功能.
- 观察到土壤细菌和真菌社区结构的显著变化,随着时间的推移,沼气泥和传统施肥处理之间的相似性趋势.
- 虽然对营养平衡有好处,但生物气泥的使用可能会增加真菌病的风险,需要进一步调查.
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