生物炭和促进植物生长的草原细菌之间的协同相互作用对土壤中有益的微生物群落产生效应
Qianmei Zou1, Longyuan Zhao1, Lirong Guan2
1College of Plant Protection, Yunnan Agricultural University, Kunming, China.
Frontiers in plant science
|January 3, 2025
概括
将生物炭 (BC) 和促进植物生长的根茎细菌 (PGPR) 添加到土壤中,可以显著提高卷心菜的产量和土壤肥力. 这种组合增强了有益的土壤微生物,改善了土壤的特性,为化学肥料提供了可持续的替代品.
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:
- 化学肥料和密集农业降解土壤,降低作物产量.
- 促进植物生长的树枝细菌 (PGPR) 和生物炭 (BC) 显示出改善土壤的潜力.
- 最佳的PGPR和BC应用率及其对不同地区/作物的影响尚不清楚.
研究的目的:
- 评估BC和PGPR对白菜产量和土壤物理化学性质的影响.
- 调查这些修正案对土壤微生物群落的影响.
- 评估BC在酸性红土中作为PGPR载体的有效性.
主要方法:
- 在云南-贵州高原 (中国) 实验白菜 (Brassica pekinensis).
- 治疗包括常规化肥,降低肥,BC应用和PGPR应用.
- 使用高通量测序来分析土壤微生物群落.
主要成果:
- BC的应用增加了土壤的性水解,可用的和可用的.
- BC和/或PGPR显著增加了土壤的有机物质和有益微生物的丰富性 (例如,Streptomyces,Lysobacter,Bacillus).
- 同时应用BC和PGPR增强了Pseudomonas的丰富性和细菌多样性 (香农和辛普森指数).
- 与PGPR或不含PGPR的BC应用显著增加了与对照组相比高达1.41倍的卷心菜产量.
结论:
- 生物炭是PGPR的有前途的载体,有效地提高了酸性红色土壤中的土壤肥力和微生物多样性.
- 结合BC和PGPR的应用显著提高了土壤的特性,并提高了卷心菜的产量.
- 这种方法为提高作物生产率提供了传统化肥的可持续替代方案.
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