Changes of pH across the rhizosphere induced by roots

@article{Nye2005ChangesOP,
  title={Changes of pH across the rhizosphere induced by roots},
  author={Peter Hague Nye},
  journal={Plant and Soil},
  year={2005},
  volume={61},
  pages={7-26}
}
  • P. Nye
  • Published 1 February 1981
  • Chemistry
  • Plant and Soil
SummaryPlants that absorb nitrogen as NO3− tend to raise the pH in the rhizosphere. Those absorbing nitrogen as NH4+ or N2 lower the pH. The change in pH near the root surface may be calculated approximately from the H+ or HCO3− efflux and radius of the root; and the pH buffering capacity, moisture content, initial pH and pCO2 of the soil. An accurate equation, solved numerically, also takes account of root hairs, mass flow and slow acid-base reaction in the soil. The pH at the root surface… 
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Highly Influential Citations
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298 Citations

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Citation Type

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Increase in solubility of soil aluminium (Al) as a result of root-induced decrease of soil pH was studied. Soil samples of known distances from the roots of NH4-N fertilized Ryegrass were analyzed…
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The aim of the present review is to define the various origins of root-mediated changes of pH in the rhizosphere, i.e., the volume of soil around roots that is influenced by root activities and the response of plant roots to deficiencies of P and Fe and to Al toxicity.
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Mobilization of soil P as the result of plant-induced changes of soil pH in the vicinity of plant roots was studied. Seedlings of ryegrass were grown in small containers separating roots from soil by…
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TLDR
A sensitivity analysis showed the importance of soil sorption and speciation parameters as influenced by pH and CO2 pressure; and of root geometry and root-induced acid-base changes linked to the form of nitrogen taken up by the root.
Fertilizer Potential of Struvite as Affected by Nitrogen Form in the Rhizosphere
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The root system is immediately surrounded by a narrow zone of soil called the rhizosphere. A major proportion of biodiversity of the soil resides in the rhizosphere, hence accounting for the various…
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References

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