Impact of conservation tillage on wheat performance and its microbiome

Frontiers in Plant Science

Plant Science

Angela Sessitsch¹  Friederike Trognitz¹  Hanna Faist¹  Ida Romano²  Sarah Symanczik³  Natacha Bodenhausen³  Gottlieb Basch⁴  Miguel Soares⁴  Stéphane Declerck⁵  Marcé Doubell⁵ 

[1] AIT Austrian Institute of Technology, Tulln, Austria;Department of Agricultural Sciences, Division of Microbiology, University of Naples Federico II, Naples, Italy;Department of Soil Sciences, Research Institute of Organic Agriculture (FiBL), Frick, Switzerland;MED – Mediterranean Institute for Agriculture, Environment and Development, University of Évora, Évora, Portugal;Mycology, Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium;

关键词: tillage;    wheat genotype;    amplicon sequencing;    soil microbiome;    irrigation;    fertilization;   

DOI  :  10.3389/fpls.2023.1211758

 received in 2023-04-25, accepted in 2023-07-25,  发布年份 2023

来源: Frontiers

【 摘 要 】

Winter wheat is an important cereal consumed worldwide. However, current management practices involving chemical fertilizers, irrigation, and intensive tillage may have negative impacts on the environment. Conservation agriculture is often presented as a sustainable alternative to maintain wheat production, favoring the beneficial microbiome. Here, we evaluated the impact of different water regimes (rainfed and irrigated), fertilization levels (half and full fertilization), and tillage practices (occasional tillage and no-tillage) on wheat performance, microbial activity, and rhizosphere- and root-associated microbial communities of four winter wheat genotypes (Antequera, Allez-y, Apache, and Cellule) grown in a field experiment. Wheat performance (i.e., yield, plant nitrogen concentrations, and total nitrogen uptake) was mainly affected by irrigation, fertilization, and genotype, whereas microbial activity (i.e., protease and alkaline phosphatase activities) was affected by irrigation. Amplicon sequencing data revealed that habitat (rhizosphere vs. root) was the main factor shaping microbial communities and confirmed that the selection of endophytic microbial communities takes place thanks to specific plant–microbiome interactions. Among the experimental factors applied, the interaction of irrigation and tillage influenced rhizosphere- and root-associated microbiomes. The findings presented in this work make it possible to link agricultural practices to microbial communities, paving the way for better monitoring of these microorganisms in the context of agroecosystem sustainability.

【 授权许可】

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Copyright © 2023 Romano, Bodenhausen, Basch, Soares, Faist, Trognitz, Sessitsch, Doubell, Declerck and Symanczik