How Do Plants Absorb Soil Water?

  • Klaus Reichardt
  • Luís Carlos Timm


Water absorbed by plants depends on its availability in the soil reservoir. Therefore the soil reservoir is studied in relation to its available water capacity, which depends on the field capacity and on the permanent wilting point. Approaches on water availability are presented in function of the soil water potential, derived from the Gibbs free energy concept. It is shown that the water flow through the plant has to be analyzed as a whole, that is, considering the Soil-Plant-Atmosphere System. Mathematical approaches are shown on how to solve differential equations written in the cylindrical coordinate system. Considerations are made about soil water and evapotranspiration, about the least limiting water range, and about the penetrometer used to measure soil resistance to root penetration.


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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Klaus Reichardt
    • 1
  • Luís Carlos Timm
    • 2
  1. 1.Centro de Energia Nuclear na Agricultura and Escola Superior de Agricultura “Luiz de Queiróz”University of Sao PauloPiracicabaBrazil
  2. 2.Rural Engineering Department, Faculty of AgronomyFederal University of PelotasCapão do LeãoBrazil

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