有机肥与微生物无菌菌的联合应用改善了二次盐化土壤中的聚合物形成和盐出
Yuanyuan Peng1, He Zhang1, Jinshan Lian1
1Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie Street, Haidian District, Beijing 100080, China.
Plants (Basel, Switzerland)
|August 26, 2023
概括
生物有机肥,使用昆虫草和有益的微生物,有效地减少土壤化,改善温室蔬菜系统中的土壤结构. 这些处理方法增强了土壤的营养和聚合物的稳定性,为污染的土壤提供了可持续的解决方案.
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:
- 温室蔬菜生产对于全年供应和农民收入至关重要.
- 使用矿物肥过度施肥导致土壤盐化和结构退化.
- 需要可持续的替代品来减轻这些负面影响.
研究的目的:
- 评估生物有机肥 (Protaetia brevitarsis larvae frass与Bacillus amyloliticus和/或Trichoderma harziensis) 在改善盐化的温室土壤中的有效性.
- 评估这些生物肥料对土壤营养含量,聚合物稳定性和盐积累的影响.
- 为了确定最佳的微生物注射用于土壤修复.
主要方法:
- 生物有机肥的应用,在温室黄瓜系统中部分取代矿物肥.
- 测量土壤有机物 (SOM),总 (TN),可用的 (AP),电导率 (EC) 和总盐含量 (TSC).
- 对化物 (Cl-),化物 (NO3-) 和硫酸盐 (SO42-) 含量的分析,以及土壤微聚合物的尺寸分布.
主要成果:
- 与对照组相比,生物有机肥处理显著增加了SOM,TN和AP.
- 欧洲共同体土壤和土壤质量标准土壤分别下降了15.74-24.20%和19.15-29.05%.
- 用B. amyloliticus和T. harziensis进行双接种最有效地降低了Cl-,NO3-和SO42-含量,并增加了微聚合物形成 (0.25-0.053毫米) 的75.87-78.51%.
结论:
- 生物有机肥料,特别是具有双重微生物注射的生物有机肥,在温室蔬菜系统中有效缓解土壤盐化.
- 这些处理方法通过增加必需营养素来提高土壤肥力,并通过更好的聚合物形成来改善土壤结构.
- 高酸幼虫和耐盐微生物的组合为可持续的土壤管理提供了一个有前途的战略.
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