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GRASSREX / N · Mg · Ca
GrassRex · Professional turf nutrition
PRODUCT PROFILE
N · Mg · Ca

CALVANT

Calcium & magnesium turf fertiliser

  • 8% nitrogen
  • 9% CaO + 4.5% MgO
  • Leaf resilience & colour

CALVANT brings nitrate nitrogen, calcium and magnesium into one liquid turf nutrition programme. Its reference formulation is positioned for turf colour and leaf resilience on football pitches, golf courses and maintained landscapes. Application and response depend on the surface, soil and care programme.

N8%

Total nitrogen

MgO4.5%

Water-soluble magnesium oxide (MgO)

CaO9%

Water-soluble calcium oxide (CaO)

Football · Golf · Premium landscapes
01Technical data

The formula, at a glance.

Composition map

%
0510%
Organic matter10%
Total nitrogen8%
Nitrate nitrogen8%
Water-soluble magnesium oxide (MgO)4.5%
Water-soluble calcium oxide (CaO)9%
Maximum chlorine1%

Constituents are shown individually. Some overlap; percentages must not be added together.

Open the technical table
Composition%
Organic matter10%
Total nitrogen8%
Nitrate nitrogen8%
Water-soluble magnesium oxide (MgO)4.5%
Water-soluble calcium oxide (CaO)9%
Maximum chlorine1%
02Application

A place in your programme.

Plan with the technical team
01

Assess the surface

Turf species, surface conditions and the current programme.

02

Plan the application

Confirm dose, method and compatibility against the current label.

03

Record the response

Consistent photography, dates and documented measurements.

Application

Plan dose, water volume, method and frequency with the technical team using the current product label, turf species, soil analysis and local conditions. Check mixing compatibility before application.

CALVANT brings nitrate nitrogen, calcium and magnesium into one liquid turf nutrition programme. Its reference formulation is positioned for turf colour and leaf resilience on football pitches, golf courses and maintained landscapes. Application and response depend on the surface, soil and care programme.

CALVANT / RESPONSE OBSERVATION

From applicationto observation.

A 72-hour observation window, with conditions recorded at every step.

REFERENCE MANUFACTURER STATEMENT

The reference manufacturer reports effects no later than 72 hours after application, depending on soil cation exchange capacity. This is a conditional manufacturer statement, not a guaranteed GrassRex field result.

PURPOSE / FORMULA / PROGRAMME

The right detail.A considered programme.

01 / Care focus

Calcium & magnesium turf fertiliser

Colour and leaf condition

02 / Formulation

N · Mg · Ca

8% nitrogen · 9% CaO + 4.5% MgO · Leaf resilience & colour

Use the composition above to review the formulation alongside your current nutrition programme.

03 / Professional application

Professional application

Set the dose and application conditions with the technical team, using the current label and your site assessment.

Formulation referenceSource reviewed · 2026-10-11

Composition and care positioning are based on the linked reference formulation. The current product label and technical assessment govern application.

Review the technical source
CALVANT / Before & After

Before and after.A closer look at the pitch.

Drag the line to explore both views, side by side.

Colour and leaf condition

Illustrative scenarioColour and leaf condition
CALVANT · Colour and leaf condition · After — Illustrative scenario
CALVANT · Colour and leaf condition · Before — Illustrative scenario
Before
After
01 / BeforeInitial appearance
02 / AfterIllustrative care outcome
01 / 01

These images illustrate a care scenario for CALVANT; they are not measured product results or a time guarantee.

05Documents

Documents

GRASSREX / 2026GrassRex product catalogue coverPDF / 10 pages
THE GRASSREX COLLECTION

The complete range.In your hands.

Six products, clear technical profiles and a considered approach to turf care. Explore the GrassRex corporate catalogue in your language.

Edition 2.0 · 2026Preview PDF
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