{"title":"Rain-fed spring maize exhibits growth stability through rhizosphere microbial responses to stover return and organic fertilizer application","authors":"Qiang Liu, Xueqin Kong, Wenqi Wu, Yang Jiao, Shanchao Yue, Yufang Shen","doi":"10.1007/s11104-025-07422-6","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Aims</h3><p>The integration of maize stover waste recycling and organic substitution has been extensively implemented to enhance spring maize yield and ameliorate soil quality in rain-fed agricultural areas. Nonetheless, the intricate mechanisms of plant-rhizosphere microorganism interaction remain poorly understood.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>This study employed a comprehensive two-year field experiment to elucidate the dynamics of rhizosphere microbiome-plant interactions under stover and organic substitution strategies on the Loess Plateau, facilitated by high-throughput sequencing and carbon and nitrogen composition analyses.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>The findings revealed a significant enrichment in the content of rhizosphere carbon and nitrogen components, with the plant height, yield, and harvest index of spring maize increasing by 2.56%, 5.19%, and 2.67%, respectively, compared to the chemical fertilizer. The dataset, encompassing the rhizosphere microbiome and soil moisture and carbon components, exhibited a strengthened correlation following stover recycling. Concurrently, the rhizosphere bacterial community matrix of spring maize correlated with dissolved organic nitrogen and soil organic carbon in the nutrient matrix by altering carbon and nitrogen cycle pathways upon stover incorporation. Phylogenetic null model calculations demonstrated that prolonged stover recycling mitigated the processes of dispersal limitation and homogeneous selection in rhizosphere fungal communities, with their formation and maintenance predominantly reliant on stochastic events rather than species’ adaptive traits. The rhizosphere microbial co-occurrence network analysis indicated that stover recycling exerted a more pronounced effect on enhancing positive connections within the fungal network compared to the bacterial network.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>Collectively, our findings offer profound insights into the rhizosphere soil microbial interactions with spring maize in rain-fed agricultural areas.</p>","PeriodicalId":20223,"journal":{"name":"Plant and Soil","volume":"1 1","pages":""},"PeriodicalIF":3.9000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plant and Soil","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1007/s11104-025-07422-6","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 0
Abstract
Aims
The integration of maize stover waste recycling and organic substitution has been extensively implemented to enhance spring maize yield and ameliorate soil quality in rain-fed agricultural areas. Nonetheless, the intricate mechanisms of plant-rhizosphere microorganism interaction remain poorly understood.
Methods
This study employed a comprehensive two-year field experiment to elucidate the dynamics of rhizosphere microbiome-plant interactions under stover and organic substitution strategies on the Loess Plateau, facilitated by high-throughput sequencing and carbon and nitrogen composition analyses.
Results
The findings revealed a significant enrichment in the content of rhizosphere carbon and nitrogen components, with the plant height, yield, and harvest index of spring maize increasing by 2.56%, 5.19%, and 2.67%, respectively, compared to the chemical fertilizer. The dataset, encompassing the rhizosphere microbiome and soil moisture and carbon components, exhibited a strengthened correlation following stover recycling. Concurrently, the rhizosphere bacterial community matrix of spring maize correlated with dissolved organic nitrogen and soil organic carbon in the nutrient matrix by altering carbon and nitrogen cycle pathways upon stover incorporation. Phylogenetic null model calculations demonstrated that prolonged stover recycling mitigated the processes of dispersal limitation and homogeneous selection in rhizosphere fungal communities, with their formation and maintenance predominantly reliant on stochastic events rather than species’ adaptive traits. The rhizosphere microbial co-occurrence network analysis indicated that stover recycling exerted a more pronounced effect on enhancing positive connections within the fungal network compared to the bacterial network.
Conclusions
Collectively, our findings offer profound insights into the rhizosphere soil microbial interactions with spring maize in rain-fed agricultural areas.
期刊介绍：
Plant and Soil publishes original papers and review articles exploring the interface of plant biology and soil sciences, and that enhance our mechanistic understanding of plant-soil interactions. We focus on the interface of plant biology and soil sciences, and seek those manuscripts with a strong mechanistic component which develop and test hypotheses aimed at understanding underlying mechanisms of plant-soil interactions. Manuscripts can include both fundamental and applied aspects of mineral nutrition, plant water relations, symbiotic and pathogenic plant-microbe interactions, root anatomy and morphology, soil biology, ecology, agrochemistry and agrophysics, as long as they are hypothesis-driven and enhance our mechanistic understanding. Articles including a major molecular or modelling component also fall within the scope of the journal. All contributions appear in the English language, with consistent spelling, using either American or British English.
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