土壤微生物机制通过应用细菌和三角体修改的生物肥料来改善梨苗的生长
Yanwei Ma1, Kuerban Zuohereguli1, Lisheng Zhang1
1Jiangsu Provincial Key Lab for Solid Organic Waste Utilization, Key Lab of Organic-Based Fertilizers of China, Jiangsu Collaborative Innovation Center for Solid Organic Wastes, Educational Ministry Engineering Center of Resource-Saving Fertilizers, Nanjing Agricultural University, Nanjing, China.
Plant, cell & environment
|January 28, 2025
概括
有Bacillus velezensis SQR9和Trichoderma harzianum NJAU4742的生物有机肥可以显著增加梨树生物质和土壤营养. 这些微生物通过特定的机制提高土壤肥力和植物生长,帮助可持续农业.
科学领域:
- 农业科学 农业科学
- 微生物学 微生物学
- 土壤科学 土壤科学
背景情况:
- 生物有机肥可以改善土壤健康和作物产量.
- 目前尚不完全了解Bacillus velezensis SQR9和Trichoderma harzianum NJAU4742增强植物生长的具体机制.
研究的目的:
- 研究Bacillus velezensis SQR9 (SQR9) 和Trichoderma harzianum NJAU4742 (T4742) 对梨树生长,树根球营养素和微生物群落的影响.
- 阐明这些生物有机肥的益处背后的机制.
主要方法:
- 结合片测序和可培养方法来分析土壤微生物群落.
- 评估梨树生物量,树根球营养水平和微生物群体组成.
- 进行了体外实验,以研究微生物二次代谢产物的作用.
主要成果:
- 与传统有机肥相比,SQR9和T4742处理都显著增加了梨树生物质 (分别为68%和84%).
- SQR9增加了土壤有机物质和可用的;T4742增强了,,铁和.
- T4742比SQR9更广泛地改变了微生物群落,丰富了Pseudomonas,Aspergillus和Penicillium,而SQR9则丰富了Urebacillus,Streptomyces和Mycobacterium.
- 来自SQR9和T4742的二次代谢产物刺激了有益微生物的生长.
结论:
- 百菌 velezensis SQR9和Trichoderma harzianum NJAU4742是有效的生物有机肥料,可以提高土壤的肥力和梨树的生长.
- 这些微生物通过改变土壤微生物群落并产生支持有益微生物的代谢物来发挥其作用.
- 研究结果为开发可持续农业的有针对性的生物有机肥提供了洞察力.
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