生物气泥对土壤属性和微生物成分的影响,在一年一轮的草-料玉米旋转系统中,在五年期间
Guangyan Feng1, Feixiang Hao1,2, Wei He3
1College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China.
Microorganisms
|April 27, 2024
概括
长期应用生物气泥显著改善了土壤的营养素和pH值,对土壤微生物群体产生了积极的影响. 这种有机肥料为提高农业实践提供了化学肥料的可持续替代品.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 环境科学 环境科学
背景情况:
- 过度使用化学肥料威胁到土壤健康.
- 生物气泥是一种富含营养的有机肥料资源.
- 生物气泥对土壤营养素和农作物轮换中的微生物群落的长期影响还未得到充分研究.
研究的目的:
- 研究五年化学肥料 (NPK),生物气泥和联合应用对土壤化学性质和微生物群落的影响.
- 评估生物气泥作为化学肥料的可持续替代品,在每年麦草-麦玉米旋转系统中使用.
主要方法:
- 实地研究应用NPK肥料 (225公斤公1),生物气泥 (150公公) 和五年时间的组合处理.
- 对土壤化学特性 (SOC,TN,AP,AK,pH) 和微生物群落结构 (细菌和真菌) 的分析.
- 与对照组对治疗效应的比较.
主要成果:
- 生物气泥的应用显著增加了土壤有机碳 (SOC),总 (TN),可用的 (AP) 和可用的 (AK),分别为45.93%,39.52%,174.73%和161.54%.
- 生物气泥的应用中和了酸性土壤,增加了土壤的pH值.
- 化学肥料的应用增加了细菌的多样性,而这两种施肥方法都改变了土壤的细菌和真菌社区结构.
结论:
- 长期使用沼气泥增强了土壤的营养含量和pH值.
- 生物气泥的应用积极调节土壤细菌和真菌社区结构.
- 生物气泥是一种可行的可持续管理措施,也是化学肥料的替代品,用于可持续的农业强化.
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