米系统与外源有机废物相结合,通过调节土壤微生物群体,改善了缺乏的土壤质量
Yanan Pei1,2, Zihan Yuan1, Weiguang Lv1,2,3,4
1Eco-Environmental Protection Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China.
Frontiers in microbiology
|January 30, 2026
概括
综合的米鱼系统,特别是有机肥料替代,增强了土壤健康和微生物群落. 这种可持续的方法减少了对化学肥料的依赖,同时保持了作物生产率.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 微生物学 微生物学
背景情况:
- 鱼鱼系统将水产养殖与大米种植相结合,为生态提供了好处.
- 在这个系统中用有机物质 (草,有机肥) 取代化学肥料对土壤属性的长期影响需要进一步研究.
研究的目的:
- 评估在米系统中有机废物替代对土壤物理化学性质和微生物群落的影响.
- 量化不同施肥策略下的土壤有机物,营养物质可用性和微生物多样性的变化.
主要方法:
- 实地实验于2016年建立,使用在米轮换下使用沙土土壤.
- 五种治疗方法进行了比较:没有鱼的传统施肥 (RT),用鱼的传统施肥 (IRT) 和用鱼减少的化学施肥 (70%),补充了草 (IS) 或有机肥料 (IO).
- 在两种深度 (0-20厘米和20-40厘米) 分析了土壤样本的物理化学特性和微生物群落组成.
主要成果:
- 大米鱼系统,特别是处理IS和IO,显著改善了土壤宏观聚合物的稳定性.
- 与RT相比,处理IS和IO增加了16.04% (0-20厘米) 和18.60% (20-40厘米) 的土壤有机物 (SOM),可用 (AP) 增加了33.70% (20-40厘米).
- 在IS和IO治疗中,细菌和真菌基因拷贝显著增加 (64.95%在0-20厘米,76.20%在20-40厘米),同时增强了微生物多样性和改变了社区组成.
结论:
- 大米鱼系统,特别是当加入有机肥料 (IO) 时,大大提高了土壤的肥力,聚合物稳定性和微生物功能.
- 该系统通过减少对化学肥料的依赖和维持农业生产率,为生态农业提供了可行的战略.
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