Significance of root hairs at the field scale – modelling root water and phosphorus uptake under different field conditions

S. Ruiz; N. Koebernick; S. Duncan; D. Mc Kay Fletcher; C. Scotson; A. Boghi; M. Marin; A. G. Bengough; T. S. George; L. K. Brown; P. D. Hallett; T. Roose

doi:10.1007/s11104-019-04308-2

Significance of root hairs at the field scale – modelling root water and phosphorus uptake under different field conditions

S. Ruiz^*, N. Koebernick, S. Duncan, D. Mc Kay Fletcher, C. Scotson, A. Boghi, M. Marin, A. G. Bengough, T. S. George, L. K. Brown, P. D. Hallett, T. Roose

^*Corresponding author for this work

Aberdeen Centre For Environmental Sustainability

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

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Abstract

Abstract: Background and aims: Root hairs play a significant role in phosphorus (P) extraction at the pore scale. However, their importance at the field scale remains poorly understood. Methods: This study uses a continuum model to explore the impact of root hairs on the large-scale uptake of P, comparing root hair influence under different agricultural scenarios. High vs low and constant vs decaying P concentrations down the soil profile are considered, along with early vs late precipitation scenarios. Results: Simulation results suggest root hairs accounted for 50% of total P uptake by plants. Furthermore, a delayed initiation time of precipitation potentially limits the P uptake rate by over 50% depending on the growth period. Despite the large differences in the uptake rate, changes in the soil P concentration in the domain due to root solute uptake remains marginal when considering a single growth season. However, over the duration of 6 years, simulation results showed that noticeable differences arise over time. Conclusion: Root hairs are critical to P capture, with uptake efficiency potentially enhanced by coordinating irrigation with P application during earlier growth stages of crops.

Original language	English
Number of pages	24
Journal	Plant and Soil
DOIs	https://doi.org/10.1007/s11104-019-04308-2
Publication status	Published - 6 Dec 2019

Bibliographical note

We would like to thank the funding agencies supporting this research. S. R., N. K., and T.R. are funded by BBSRC SARISA BB/L025620/1. S. D., A. B., and T.R. are funded by BBSRC SARIC BB/P004180/. D. M. M. F., C. S ., and T.R. are funded by ERC 646809 DIMR. M. M., T.S. G., L. B., and P. D. H. are funded by BBSRC BB/J00868/1. A. G. B. is funded by BB/L025825/1. T. R. is also funded by EPSRC EP/M020355/1, ERC 646809 DIMR, and NERC NE/L00237/1. Thanks to the James Hutton Institute for provision of rainfall data. The James Hutton Institute receives funding from the Rural & Environment Science & Analytical Services Division of the Scottish Government. We would also like to acknowledge the time and dedication of the reviewers, whose comments helped to improve our manuscript.

Keywords

Field
Mathematical modelling
Phosphorus
Plant roots
Rhizosphere
Root hairs
Soil
Water

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Cite this

@article{28f95e9e8882457093e1ef60a0978bf9,

title = "Significance of root hairs at the field scale – modelling root water and phosphorus uptake under different field conditions",

abstract = "Abstract: Background and aims: Root hairs play a significant role in phosphorus (P) extraction at the pore scale. However, their importance at the field scale remains poorly understood. Methods: This study uses a continuum model to explore the impact of root hairs on the large-scale uptake of P, comparing root hair influence under different agricultural scenarios. High vs low and constant vs decaying P concentrations down the soil profile are considered, along with early vs late precipitation scenarios. Results: Simulation results suggest root hairs accounted for 50% of total P uptake by plants. Furthermore, a delayed initiation time of precipitation potentially limits the P uptake rate by over 50% depending on the growth period. Despite the large differences in the uptake rate, changes in the soil P concentration in the domain due to root solute uptake remains marginal when considering a single growth season. However, over the duration of 6 years, simulation results showed that noticeable differences arise over time. Conclusion: Root hairs are critical to P capture, with uptake efficiency potentially enhanced by coordinating irrigation with P application during earlier growth stages of crops.",

keywords = "Field, Mathematical modelling, Phosphorus, Plant roots, Rhizosphere, Root hairs, Soil, Water",

author = "S. Ruiz and N. Koebernick and S. Duncan and Fletcher, {D. Mc Kay} and C. Scotson and A. Boghi and M. Marin and Bengough, {A. G.} and George, {T. S.} and Brown, {L. K.} and Hallett, {P. D.} and T. Roose",

note = "We would like to thank the funding agencies supporting this research. S. R., N. K., and T.R. are funded by BBSRC SARISA BB/L025620/1. S. D., A. B., and T.R. are funded by BBSRC SARIC BB/P004180/. D. M. M. F., C. S ., and T.R. are funded by ERC 646809 DIMR. M. M., T.S. G., L. B., and P. D. H. are funded by BBSRC BB/J00868/1. A. G. B. is funded by BB/L025825/1. T. R. is also funded by EPSRC EP/M020355/1, ERC 646809 DIMR, and NERC NE/L00237/1. Thanks to the James Hutton Institute for provision of rainfall data. The James Hutton Institute receives funding from the Rural & Environment Science & Analytical Services Division of the Scottish Government. We would also like to acknowledge the time and dedication of the reviewers, whose comments helped to improve our manuscript.",

year = "2019",

month = dec,

day = "6",

doi = "10.1007/s11104-019-04308-2",

language = "English",

journal = "Plant and Soil",

issn = "0032-079X",

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TY - JOUR

T1 - Significance of root hairs at the field scale – modelling root water and phosphorus uptake under different field conditions

AU - Ruiz, S.

AU - Koebernick, N.

AU - Duncan, S.

AU - Fletcher, D. Mc Kay

AU - Scotson, C.

AU - Boghi, A.

AU - Marin, M.

AU - Bengough, A. G.

AU - George, T. S.

AU - Brown, L. K.

AU - Hallett, P. D.

AU - Roose, T.

N1 - We would like to thank the funding agencies supporting this research. S. R., N. K., and T.R. are funded by BBSRC SARISA BB/L025620/1. S. D., A. B., and T.R. are funded by BBSRC SARIC BB/P004180/. D. M. M. F., C. S ., and T.R. are funded by ERC 646809 DIMR. M. M., T.S. G., L. B., and P. D. H. are funded by BBSRC BB/J00868/1. A. G. B. is funded by BB/L025825/1. T. R. is also funded by EPSRC EP/M020355/1, ERC 646809 DIMR, and NERC NE/L00237/1. Thanks to the James Hutton Institute for provision of rainfall data. The James Hutton Institute receives funding from the Rural & Environment Science & Analytical Services Division of the Scottish Government. We would also like to acknowledge the time and dedication of the reviewers, whose comments helped to improve our manuscript.

PY - 2019/12/6

Y1 - 2019/12/6

N2 - Abstract: Background and aims: Root hairs play a significant role in phosphorus (P) extraction at the pore scale. However, their importance at the field scale remains poorly understood. Methods: This study uses a continuum model to explore the impact of root hairs on the large-scale uptake of P, comparing root hair influence under different agricultural scenarios. High vs low and constant vs decaying P concentrations down the soil profile are considered, along with early vs late precipitation scenarios. Results: Simulation results suggest root hairs accounted for 50% of total P uptake by plants. Furthermore, a delayed initiation time of precipitation potentially limits the P uptake rate by over 50% depending on the growth period. Despite the large differences in the uptake rate, changes in the soil P concentration in the domain due to root solute uptake remains marginal when considering a single growth season. However, over the duration of 6 years, simulation results showed that noticeable differences arise over time. Conclusion: Root hairs are critical to P capture, with uptake efficiency potentially enhanced by coordinating irrigation with P application during earlier growth stages of crops.

AB - Abstract: Background and aims: Root hairs play a significant role in phosphorus (P) extraction at the pore scale. However, their importance at the field scale remains poorly understood. Methods: This study uses a continuum model to explore the impact of root hairs on the large-scale uptake of P, comparing root hair influence under different agricultural scenarios. High vs low and constant vs decaying P concentrations down the soil profile are considered, along with early vs late precipitation scenarios. Results: Simulation results suggest root hairs accounted for 50% of total P uptake by plants. Furthermore, a delayed initiation time of precipitation potentially limits the P uptake rate by over 50% depending on the growth period. Despite the large differences in the uptake rate, changes in the soil P concentration in the domain due to root solute uptake remains marginal when considering a single growth season. However, over the duration of 6 years, simulation results showed that noticeable differences arise over time. Conclusion: Root hairs are critical to P capture, with uptake efficiency potentially enhanced by coordinating irrigation with P application during earlier growth stages of crops.

KW - Field

KW - Mathematical modelling

KW - Phosphorus

KW - Plant roots

KW - Rhizosphere

KW - Root hairs

KW - Soil

KW - Water

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U2 - 10.1007/s11104-019-04308-2

DO - 10.1007/s11104-019-04308-2

M3 - Article

C2 - 32214504

AN - SCOPUS:85076752266

SN - 0032-079X

JO - Plant and Soil

JF - Plant and Soil

ER -

Significance of root hairs at the field scale – modelling root water and phosphorus uptake under different field conditions

Abstract

Bibliographical note

Keywords

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