| 引用本文: | 安楷睿,许永光,马雪松,等.磁化水灌溉对设施连作下辣椒果实品质及其土壤微生态环境的影响[J].灌溉排水学报,2026,45(7):83-90. |
| An Kairui,Xu Yongguang,Ma Xuesong,et al.磁化水灌溉对设施连作下辣椒果实品质及其土壤微生态环境的影响[J].灌溉排水学报,2026,45(7):83-90. |
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| 摘要: |
| 【目的】探讨磁化水灌溉对土壤理化性质、微生物群落和果实品质的影响。【方法】采用温室大棚，以长期连作设施辣椒为研究对象，基于高通量技术分析磁化水灌溉处理和非磁化水灌溉处理对辣椒生长和果实品质及土壤微生态环境的影响。【结果】与非磁化水处理相比，磁化水处理土壤含水率、有机碳量、氨态氮量、硝态氮量、速效磷量分别显著增加18.45%、15.55%、126.53%、19.88%、14.27%。同时，磁化水处理显著改善果实品质，与非磁化水处理相比，果实的横径和单果质量显著提高30.48%和43.68%。变形菌门、厚壁菌门和放线菌门主导设施土壤的细菌群落。与非磁化水处理相比，变形菌门相对丰度在磁化水处理后显著增加，厚壁菌门则显著降低。在属水平上，磁化水处理显著提高芽孢杆菌属等细菌群落的相对丰度，降低黄色金线菌等寡营养型细菌群落的相对丰度。Mantel分析表明，微生物多样性和组成与pH值、含水率、铵态氮量和硝态氮量显著相关，变形菌门、绿弯菌门相对丰度与pH值、有机碳量、氨态氮量、硝态氮量和速效磷量呈显著正相关。【结论】磁化水处理有利于改善土壤性质和细菌群落组成，促进养分释放，进而增强辣椒的生长和光合能力，提高设施栽培系统中辣椒吸收养分的能力，促进其品质的提升。 |
| 关键词: 温室；土壤；灌溉；细菌群落；果实品质；高通量测序 |
| DOI：10.13522/j.cnki.ggps.2025319 |
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| Magnetized water irrigation improves soil microenvironment and fruit quality of greenhouse peppers under continuous cropping |
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An Kairui, Xu Yongguang, Ma Xuesong, Hou Xiaojing, Jing Ruyan, Zhang Ying
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1. Shandong Key Laboratory of Eco-environmental Science for the Yellow River Delta, Shandong University of Aeronautics,
Binzhou 256600, China; 2. Fuping County Forestry Bureau, Shaanxi Province, Wei’nan 711700, China
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| Abstract: |
| 【Objective】Long-term continuous cropping in greenhouse vegetable production could cause soil degradation and microbial community imbalance, compromising crop fruit quality. This study investigated the effect of magnetized water irrigation on soil physicochemical properties, microbial communities, and fruit quality of greenhouse peppers under continuous cropping conditions.【Method】A greenhouse experiment was carried out using pepper as the model crop. During the experiment, we measured soil moisture, organic carbon and nutrient contents in the topsoil. High-throughput sequencing was used to analyze soil microbial communities and their functions under magnetized and conventional water irrigation.【Result】①Compared with non-magnetized water irrigation, magnetized water irrigation significantly increased soil moisture content, organic carbon, ammonium nitrogen, nitrate nitrogen, and available phosphorus by 18.45%, 15.55%, 126.53%, 19.88% and 14.27%, respectively. Magnetized water irrigation also remarkably increased the longitudinal diameter of pepper fruits and average single fruit weight by 30.48% and 43.68%, respectively. ②Soil bacterial communities were dominated by Proteobacteria, Firmicutes, and Actinobacteria at the phylum level. Magnetized water irrigation significantly increased the relative abundance of Proteobacteria, while reducing the relative abundance of Firmicutes. At the genus level, magnetized water irrigation substantially increased the abundance of Bacillus while reducing the abundance of Chryseolinea and other bacteria that adapt to dry and nutrient-poor soil environment. ③Correlation analysis showed that the variations in soil microbial diversity and community composition were significantly correlated with soil pH, soil moisture, ammonium nitrogen and nitrate nitrogen. The relative abundances of Proteobacteria, Chloroflexi and other key bacterial genera showed significant positive correlations with soil pH, organic carbon, ammonium nitrogen, nitrate nitrogen, and available phosphorus. Overall, magnetized water irrigation effectively improved soil physicochemical properties, reshaped soil bacterial community structure, and increased soil nutrient availability.【Conclusion】Magnetized water irrigation improves soil properties, alters bacterial community structure, and enhances soil nutrient availability. It further promotes pepper growth, photosynthetic capacity and nutrient absorption efficiency, and improves fruit quality. This technique provides a promising irrigation strategy for sustainable greenhouse vegetable production under continuous cropping. |
| Key words: greenhouse; soil; irrigation; bacterial community; fruit quality; high-throughput sequencing |
