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豆类 - 谷物旋转对的影响树枝球微生物群落结构和循环功能

Ben Jesuorsemwen Enagbonma¹, David Mxolisi Modise², Olubukola Oluranti Babalola^1,3

¹Food Security and Safety Focus Area, Faculty of Natural and Agricultural Sciences, North‒West University, Mmabatho, South Africa.

MicrobiologyOpen

|October 22, 2025

概括

农作物轮换,特别是豆类,显著改变了土壤微生物群落和循环基因. 这些变化与土壤特性有关,为可持续农业和提高产量提供了洞察力.

科学领域:

农业科学农业科学
土壤微生物学土壤微生物学
生物地质化学生物地质化学

背景情况:

豆类通过与土壤微生物的共生关系通过固增强土壤肥力.
基于豆类的作物轮换对土壤微生物群落的影响及其与土壤物理化学性质的关系仍然不完全理解.

研究的目的:

研究不同作物轮换 (牛-,大豆-,玉米-) 如何影响土壤微生物结构和循环基因.
为了确定土壤物理化学参数和微生物社区在应对作物轮换时的变化之间的相关性.

主要方法:

猎枪测序用于分析各种作物旋转系统的土壤样本中的微生物社区结构和基因.
统计分析,包括香农多样性,非度量多维缩放和多变量变量分析,用于评估微生物和遗传多样性.

主要成果:

农作物旋转显著改变了土壤的物理化学特性 (N-NO3,粘土,泥) 和树根球微生物组的组成.
豆类旋转增加了有益细菌的丰富性,如Streptomyces和特定的循环基因 (amoC,narH,gltB,glnA,ureC,napA).
土壤物理化学因素如硫 (S), (Na), (N-NH4),氨 (N-NH3) 和 (P) 被确定为微生物和循环基因调节的关键驱动因素.

结论:

作物轮换实践,特别是涉及豆类的作物轮换实践,诱导了土壤微生物群落和循环功能基因的重大转变.
通过战略性作物旋转优化树根球微生物群可以提高土壤肥力,支持可持续的农业实践,有利于后续作物,如.

关键词:

农作物产量农作物产量豆类旋转豆类旋转一把枪的元基因组学.可持续农业可持续农业合成输入合成输入

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