欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2026, Vol. 42 ›› Issue (19): 123-129.doi: 10.11924/j.issn.1000-6850.casb2026-0274

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

Bacillus flexus E1配施有机肥对盐碱土淋洗脱盐及肥力提升的影响

刘丙花(), 刘幸红, 彭琳, 孙铭婕, 王波, 刘方春(), 马海林   

  1. 山东省林业科学研究院/山东省森林植被生态修复工程技术研究中心/滨海盐碱地生态化利用山东省工程研究中心， 济南 250014
  • 收稿日期:2026-04-07 修回日期:2026-07-08 出版日期:2026-10-15 发布日期:2026-10-15
  • 通讯作者:
    刘方春，男，1978年出生，山东泰安人，研究员，博士研究生，研究方向：土壤与植物营养。通信地址：250014 山东省济南市历下区文化东路42号 山东省林业科学研究院，Tel：0531-88557780，E-mail：。
  • 作者简介:

    刘丙花，女，1983年出生，山东临沂人，正高级工程师，博士研究生，研究方向：土壤与植物营养。通信地址：250014 山东省济南市历下区文化东路42号 山东省林业科学研究院，Tel：0531-88557697，E-mail：。

  • 基金资助:
    国家重点研发计划课题“盐碱地及沿海泥质砂质土壤定向改良与林草群落高效构建技术”(2024YFD2200502); 中央财政林业改革发展资金（林业科技推广示范补助）项目“盐碱地改良及生态化利用技术推广与示范”(鲁[2024]TG02号)

Effects of Bacillus flexus E1 Combined with Organic Fertilizer Application on Leaching Desalination and Fertility Enhancement of Saline-alkali Soil

LIU Binghua(), LIU Xinghong, PENG Lin, SUN Mingjie, WANG Bo, LIU Fangchun(), MA Hailin   

  1. Shandong Academy of Forestry/ Shandong Engineering Research Center of Forest Vegetation Ecological Restoration/Shandong Provincial Engineering Research Center for Ecological Utilization of Coastal Saline-alkali Land, Jinan 250014
  • Received:2026-04-07 Revised:2026-07-08 Published:2026-10-15 Online:2026-10-15

RichHTML

0

PDF (PC)

3

摘要：

为探究微生物-有机肥联合修复滨海盐碱土的效果，开展模拟土柱淋洗试验，系统比较单一施用弯曲芽孢杆菌(BF)、单一施用有机肥(OC)、弯曲芽孢杆菌与有机肥配施(BO)以及空白对照(CK)4种处理，对淋洗速率、脱盐率、土壤水稳性团聚体(>0.25 mm)及土壤养分含量的影响。结果表明，弯曲芽孢杆菌及有机肥的添加均可显著改良盐碱土的各项指标。与CK相比，BF、OC、BO处理的淋洗速率分别提高了1.4、1.3、1.0倍，脱盐率分别显著提升了223.6%、237.3%、151.0%。BO对土壤结构和养分的提升效果最佳，其水稳性团聚体、有机质、碱解氮、有效磷、速效钾含量分别比CK提高104.6%、128.3%、594.9%、212.0%和233.1%。相关性分析揭示，土壤水稳性团聚体含量与淋洗速率、脱盐率呈显著正相关。主成分分析结果表明，各处理改良效果为BO>BF>OC>CK。本研究证明，弯曲芽孢杆菌与有机肥的协同施用，可通过改善土壤团聚结构、活化土壤养分有效促进盐分淋洗，是滨海盐碱土改良的一种高效、环境友好的措施。

关键词: 盐碱土, 弯曲芽孢杆菌, 有机肥, 脱盐率, 水稳性大团聚体, 主成分分析

Abstract:

To investigate the effects of combined application of bacterial agent and organic fertilizer on the remediation of coastal saline-alkali soil, a simulated indoor soil column leaching experiment was conducted. Different treatments, including BF (bacterial agent B. flexus E1 alone), OC (organic fertilizer alone), BO (combined application of B. flexus E1 and organic fertilizer), and CK (control), were compared for their effects on leaching rate, desalination rate, water-stable aggregates (>0.25 mm) and soil nutrients. The results showed that the amendments significantly influenced the above indicators. Compared with CK, the leaching rates of the BF, OC, and BO treatments increased by 1.4, 1.3, and 1.0 times, respectively, while the desalination rates were significantly increased by 223.6%, 237.3%, and 151.0%, respectively. BO demonstrated the best improvement in soil structure and nutrient enhancement, with water-stable aggregates, organic matter, alkali-hydrolyzable nitrogen, available phosphorus, and available potassium increasing by 104.6%, 128.3%, 594.9%, 212.0% and 233.1%, respectively, compared to CK. The leaching rate and desalination rate were significantly positively correlated with the aggregate content. The ranking of improvement effectiveness across treatments was BO>BF>OC>CK. The combined application of B. flexus E1 and organic fertilizer could effectively improve soil structure, enhance nutrient levels, and promote salt leaching through synergistic effects, representing an efficient strategy for the remediation of coastal saline-alkali soil.

Key words: saline-alkali soil, Bacillus flexus, organic fertilizer, desalination rate, water-stable macroaggregates, principal component analysis

中图分类号: