Potato Review Group

Availability of nutrients is influenced by many factors including:

  • nutrient concentration in soil solution
  • nutrients held by soil particles
  • soil particles, e.g. clay, organic matter
  • interactions with other nutrients
  • soil moisture
  • microbial activity
  • root growth

The PRG nutrient models and information on the relevant pages provide guidance on fertiliser requirements but cannot account for all these factors.

Tissue tests provide a measurement of the success of the applications.


Further information

The following links open presentations which give overviews of nutrient requirements.

Nutrition 2020

Nutrient use efficiency 2016

Nutrition review 2007


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