[不同施肥措施对棕色土壤微生物群落和酶活动的影响]
Hao-Kai Yin1, Qian Li1, Yu-Hang Zhao1
1College of Resources and Environment, Shanxi Agricultural University, Taiyuan 030031, China.
Huan jing ke xue= Huanjing kexue
|February 9, 2026
概括
优化土壤肥力和冬季小麦产量可以通过各种肥料策略来实现. 结合有机和无机肥料,特别是吸草的结合,在干旱农业系统中显著提高了土壤健康和作物生产率.
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:
- 棕色土壤的田地需要有效的施肥策略来提高土壤肥力和冬季小麦产量.
- 了解不同施肥措施对土壤微生物群落和细胞外酶的影响至关重要.
研究的目的:
- 探索五种不同的施肥措施对土壤营养,冬季小麦产量和土壤细胞外酶的影响.
- 分析不同施肥处理下土壤细菌和真菌社区结构,功能和生态网络的变化.
- 为优化土壤肥力和棕土田冬季小麦产量提供理论基础.
主要方法:
- 一项为期七年的定位测试 (2017-2024) 评估了五种受精治疗方法:没有受精 (CK),常规NPK,优化NPKM,有机肥 (OM) 和NPK+草 (NPKS).
- 测量了土壤营养含量和细胞外酶活性.
- 高通量测序和生态网络分析被用来研究细菌和真菌社区的结构和功能,通过FAPROTAX和FUNGuild进行功能预测.
主要成果:
- 所有的施肥措施都改善了土壤肥力,小麦产量和酶活性,NPKS显示出最显著的效果.
- 施肥改变了微生物群落,增加了有益的细菌 (蛋白质细菌,细菌) 和减少其他 (酸性细菌),受土壤有机碳 (SOC),营养使用效率 (UE) 和总 (TP) 的影响.
- 结合有机和无机肥料 (NPKS,NPKM) 的性能优于传统的NPK和OM,提高了土壤质量,碳/循环和作物产量,而草的回归抑制了病原体.
结论:
- 施肥策略,特别是有机-无机结合方法与草回收,显著提高土壤肥力,微生物社区结构和棕色土壤领域的冬季小麦产量.
- 这些综合方法促进了关键的土壤碳和循环功能,有助于可持续的干旱农业发展.
- 优化施肥实践是改善土壤健康和确保长期农业生产力的关键.
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