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Related Experiment Video

Updated: Jun 9, 2025

Isolation and Analysis of Microbial Communities in Soil, Rhizosphere, and Roots in Perennial Grass Experiments

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Published on: July 24, 2018

Soil microbial community composition by crop type under rotation diversification.

Donglin Zong¹, Yefu Zhou¹, Jing Zhou¹

¹College of Agriculture and Biological Science, Co-Innovation Center for Cangshan Mountain and Erhai Lake Integrated Protection and Green Development of Yunnan Province, Dali University, Dali, 671003, China.

BMC Microbiology

|October 27, 2024

Summary

Crop rotation significantly impacts soil microbial communities, with spring crops playing a dominant role. Tobacco rotations can lead to soil acidification and reduced microbial diversity, affecting soil sustainability.

Keywords:

Crop rotation diversification High-throughput sequencing Microbial community Soil properties

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Area of Science:

Agricultural Science
Soil Microbiology
Ecology

Background:

Crop rotation is a key agricultural practice influencing soil microbial metabolism, nutrient cycling, and supply.
Understanding the specific effects of crop combinations on soil microbial communities is crucial for optimizing agricultural practices.

Purpose of the Study:

To analyze the effects of different crop rotation systems on soil properties and microbial community structure.
To identify the key factors driving changes in soil microbial communities under various crop rotations.

Main Methods:

Six distinct crop rotation systems, primarily featuring tobacco or gramineous crops as spring crops, were studied over 10 years.
Soil samples were analyzed for physicochemical properties, bacterial, and fungal community composition and function.

Main Results:

Spring crops exert a stronger influence on soil properties and microbial communities than autumn crops.
Soil pH and available potassium (AK) were identified as primary drivers of microbial community shifts.
Tobacco-based rotations resulted in soil acidification and decreased microbial diversity, with bacteria showing higher sensitivity than fungi.

Conclusions:

Crop rotation combinations significantly alter soil microbial communities and nutrient status.
Spring crops have a dominant effect, and soil bacteria are more responsive to environmental changes than fungi.
Tobacco rotations negatively impact soil sustainability through acidification and reduced microbial network complexity, necessitating careful consideration for sustainable agriculture.