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. 2024 Oct 17;15:1384065. doi: 10.3389/fpls.2024.1384065

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Copyright © 2024 Beatrice, Dalle Fratte, Baronti, Miali, Genesio, Vaccari, Cerabolini and Montagnoli

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Relationships between root length (RL, A, D, G, J), root biomass (RB; B, E, H, K), specific root length (SRL; C, F, I, L) in the upper 20 cm soil depth and the seasonal variation of soil water content considering all treatments together (A–C), or only in the control (D–F), biochar single-dose (G–I) and double-dose (J–L) plots in the period between 15th May 2019 and 15th April 2020. The determination coefficient (R²) of the linear regression models is reported only when significant. Legend: *p<0.05. Number of observations in each regression = 48.