Controlling the hardness of water used for the preparation of pesticides and fertilizers during irrigation is of fundamental importance.

Water contains ions deriving from the dissolution of minerals; the most common cations are:

  • Calcium (Ca2+)
  • Magnesium (Mg2+)
  • Sodium (Na+)
  • Aluminium (Al3+)
  • Iron (Fe2+ / Fe3+)

These types of cations may influence the operation of pesticides and fertilisers as well as cause some scaling problems in the equipment used for irrigation processes.

Bozzetto suggests specific additives forl controlling the hardness of water used for agricultural purposes, based on chelation or dispersion of cations.

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