Effects on Rhizosphere Soil Microenvironment and Growth Development of Plants Under Tobacco-Garlic Intercropping
Bijie Branch of Guizhou Tobacco Company, Bijie 551799, China
| Abstract: | As the mechanism of the soil-fungi -plant interaction under the tobacco intercropping model is unclear, and the contribution of this triple interaction to tobacco plant growth is still difficult to predict, so, in this paper, Illumina high-throughput sequencing technology was used to analyze the effects of monoculture (CK) and intercropping with garlic (T1 and T2 treatments) on rhizosphere soil nutrients, enzyme activities, fungal community, tobacco plant growth, and to evaluate the regulation of rhizosphere soil microenvironment and plant productivity on intercropping. The results showed that intercropping significantly increased the nutrient, enzyme activity, fungal community diversity of rhizosphere soil and tobacco plant biomass. Although the dominant fungi in each treatment were the same at the gate level, the distribution ratio of dominant fungi was different. Correlation analysis showed that Ascomycota was positively correlated with all the nutrient and enzyme activity indexes, and the nutrient and enzyme activity indexes were positively correlated with the tobacco plants growth, which strongly indicated that the soil microenvironment under intercropping had a potential effect on the production performance of tobacco plants. In conclusion, tobacco intercropping not only increased the plants biomass, significantly improved the nutrients and enzyme activities of rhizosphere soil, optimized the composition and diversity of fungal community, which may be the result of soil-fungi-plant interaction. |
| Keywords: | Flue-Cured Tobacco; Intercropping; Garlic; Rhizosphere Soil; Nutrient; Enzyme Activity; Fungi; Growth |
| DOI: | 10.57237/j.life.2025.01.001 |
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Received: 16 March 2025
Accepted: 20 May 2025
Published Online: 30 June 2025
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