| 保善存,吕亮雨,龙启辰,樊光辉.不同促生菌剂对柴达木枸杞土壤生物学特性的影响[J].干旱地区农业研究,2025,(1):250~257 |
| 不同促生菌剂对柴达木枸杞土壤生物学特性的影响 |
| Effects of different growth\|promoting microbial agents on soil biological characteristics of Lycium barbarum cultivated in Qaidam |
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| DOI：10.7606/j.issn.1000-7601.2025.01.26 |
| 中文关键词: 枸杞 微生物促生菌 根际土壤生物学特性 生长特性 柴达木 |
| 英文关键词:Lycium barbarum microbial growth\|promoting bacteria biological characteristics of rhizosphere soil growth characteristics Qaidam |
| 基金项目:中央财政林草科技推广示范项目（青\[2022\]TG06）；青海省重点研发与转化计划（2022-NK-113,2022-NK-116）；青海省科技特派员专项（2023-NK-P13）；青海省基础研究计划（2021-ZJ-962Q） |
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| 中文摘要: |
| 为探究有机肥配施促生菌剂对柴达木地区高垄栽培有机枸杞生长发育及土壤性状的影响，以诺木洪实验区枸杞‘宁杞 7-8 号’为试验材料，设对照（CK，施有机肥）、有机肥配施哈茨木霉菌、枯草芽孢杆菌、解淀粉芽孢杆菌和胶冻样芽孢杆菌4种不同促生菌剂，共5个处理，比较不同处理对有机枸杞生长及其栽培土壤特性的影响。结果表明：与CK相比，有机肥配施促生菌剂可不同程度提升枸杞的树高、地径、SPAD值、根系活力、净光合速率（Pn）等参数，其中枯草芽孢杆菌处理下树高、根系活力、Pn和单株产量较CK提升最高，增幅分别为13.4%、46.7%、37.1%和36.3%；不同菌剂处理均明显降低了土壤pH值、电导率和微生物碳氮比，胶冻样芽孢杆菌处理效果最明显，较CK分别降低9.0%、51.9%和45.3%。不同菌剂处理还可显著提升土壤有机质含量、速效养分含量、土壤酶活性、土壤微生物数量，其中枯草芽孢杆菌处理下，土壤有机质和碱解氮含量较CK分别增加26.3%和9.8%，土壤脲酶活性和微生物总数较CK分别增加35.7%和26.6%。通过对土壤生物学特性的主成分分析，综合得出有机肥配施枯草芽孢杆菌处理对柴达木有机枸杞栽培土壤的肥力水平促进效果最佳。 |
| 英文摘要: |
| The purpose of this study was to explore the effects of organic manure combined with growth\|promoting microbial inoculum on the growth and soil properties of organic Lycium barbarum cultivated on high ridges in Qaidam area. ‘Ningqi No.7-8’ in Nomuhong experimental area was used as the experimental material. Organic manure was added to the facility as the control (CK), and four different growth\|promoting microbial agents, namely Trichoderma harzianum, Bacillus subtilis, Bacillus amyloliquefaciens and Bacillus mucilaginosus, were applied to the organic Lycium barbarum. The effects of different treatments on the growth and soil properties of organic Lycium barbarum were compared. The results indicated that, compared to the control (CK), the application of organic manure combined with growth\|promoting microbial agents inordinately enhanced the tree height, ground diameter, SPAD value, root activity, and net photosynthetic rate (Pn) of Lycium barbarum L.. Notably, the treatment with Bacillus subtilis yielded the most significant improvements in plant height, root activity, Pn, and yield per plant, with increases of 13.4%, 46.7%, 37.1%, and 36.3%, respectively. Different microbial agent treatments significantly reduced soil pH, electrical conductivity, and microbial C/N ratio. The effect was the most obvious under Bacillus subtilis treatment, which was 9.0%, 51.9%, and 45.3% lower than CK, respectively. Different treatments also significantly improved soil organic matter, available nutrients, soil enzyme activity and soil microbial population. Under Bacillus subtilis treatment, soil organic matter and alkali\|hydrolysable nitrogen increased by 26.3% and 9.8% compared with CK, and soil urease activity and total microbial population increased by 35.7% and 26.6% respectively. Through the principal component analysis of soil biological characteristics, it is concluded that organic fertilizer combined with Bacillus subtilis treatment has the best effects on promoting the fertility level of organic Lycium barbarum cultivated soil in Qaidam. |
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