Atrium Salis
Complexed calcium for salinity correction

Atrium Salis

Atrium Salis is a complexed calcium formulation, effective for controlling and preventing calcium deficiencies and for correcting saline waters and soils. It contains a high concentration of complexing agents with high exchange activity between calcium and sodium cations. Made from coniferous wood sulphite liquors, it is biodegradable.

  • Saline water corrected: rate calculated from the SAR of the water to be reduced
  • Saline soils: calcium-sodium exchange, through localised or surface irrigation
  • Calcium deficiencies prevented and controlled, both as a foliar spray and through fertigation
  • 14.4% complexed CaO and 6.5% nitric nitrogen
  • Applied at the end of irrigation: without over-diluting the product
  • Stable complexed fraction between pH 2.5 and 8.5
Download 2026 Catalogue

How to use

Form: liquid.

Application: in the last minutes of irrigation, without over-diluting the product; as a foliar spray to prevent calcium deficiencies. Do not mix with mineral oils, strong acids, copper, phosphates or sulphates; in case of doubt, run a test.

Crops: fruit trees, vine, horticultural crops and strawberry for calcium nutrition; any crop irrigated with saline water or grown on saline soils.

Crop / UseApplication rate
Saline water correction (irrigation water)10–12 ml per SAR unit to be reduced; generally 25–75 ml/m³ of water
Saline soils – localised irrigation4–8 L/ha per week, up to 50–80 L/ha
Saline soils – surface irrigation7.5–15 L/ha per irrigation, up to 100–150 L/ha
Calcium deficiency – foliar (general)175–250 ml/hl every 10–15 days
Calcium deficiency – fertigation (fruit trees, vine)5–8 L/ha, from fruit set to harvest
Calcium deficiency – fertigation (horticultural crops, strawberry)2.5–4 L/ha, from the start of fruit set to the end of harvest

Product composition

Total nitrogen (N)
6.5%
of which nitric N
6.5%
Water-soluble calcium oxide (CaO)
14.4%
of which CaO complexed by lignosulfonate (LS)
14.4%

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