Mass Flow of Soil Solution

  • movement of soil solution through soil
  • brings elements into proximity of plant roots for uptake
  • elemental ions can be carried considerable distances by mass flow
  • mass flow moves in 3 directions:
    • down,
    • up (by evaporation),
    • and laterally (to a small degree) by an advancing water front
  • low moisture content impedes mass flow
  • Calcium ions (Ca2+) and Nitrate (NO3) move primarily by mass flow

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