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Soybean growth and foliar phosphorus concentration mediated by arbuscular mycorrhizal fungi from soils under different no-till cropping systems

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    0533297 - BÚ 2021 RIV NL eng J - Journal Article
    Cofré, N. - Becerra, A. G. - Marro, Nicolás - Domínguez, L. - Urcelay, C.
    Soybean growth and foliar phosphorus concentration mediated by arbuscular mycorrhizal fungi from soils under different no-till cropping systems.
    Rhizosphere. Roč. 16, December (2020), s. 1-7, č. článku 100254. E-ISSN 2452-2198
    Institutional support: RVO:67985939
    Keywords : crop management practices * scale dependency * glycine max * land use * rhizosphere
    OECD category: Ecology
    Impact factor: 3.129, year: 2020
    Method of publishing: Limited access
    https://doi.org/10.1016/j.rhisph.2020.100254

    Soil use and management modify mycorrhizal interactions, but how these changes affect the growth and nutrition of crops under different contexts has been poorly studied. The objective of this study was to evaluate the effects of arbuscular mycorrhizal fungal (AMF) spore communities belonging to two no-till cropping systems (soybean monoculture and soybean-maize rotation), and uncultivated grasslands replicated at four locations along a regional geographic gradient on soybean mycorrhizal colonization and performance. At a regional scale, AMF spore richness was higher in uncultivated grasslands, intermediate in crop rotations, and lower in monocultures. Arbuscular mycorrhizal colonization in soybean roots was also higher in uncultivated soils but did not differ between no-tillage systems. Soybean growth was positively affected by AMF from uncultivated grasslands in comparison to control without AMF. Instead, there were no significant effects of AMF from no-till cropping systems. Foliar P concentration was lower in monocultures irrespective of AMF. At the local scale, patterns were highly variable and differed between locations. These results highlight the importance of scales for management decisions in agriculture and add further support for the context-dependent nature of mycorrhizal interactions.
    Permanent Link: http://hdl.handle.net/11104/0314196

     
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