Micro Nutrients

CALCIBOR

Calcium + Boron

More buds on every branch, a longer bloom and firmer fruit that keeps. Pure, highly concentrated calcium and boron in micro-granular form, with calcium 100% chelated by EDTA.

8.4%Ca EDTA w/w
2.4%Boron w/w
350 g/lsolubility

Request a quote Application rates

ZENITH CALCIBOR calcium and boron fertilizer bag

Guaranteed analysis

Two nutrients. One clean granule.

Calcium is fully EDTA-chelated, so it stays available in the spray tank and on the leaf. Boron completes the pair for strong flowers and fruit set.

8.4%Calcium EDTA · w/w
2.4%Boron (B) · w/w
100%Ca chelated by EDTA
Microgranular form

From bud to harvest

A tree full of buds starts before the bloom.

CALCIBOR is made for the weeks that decide the season: from early spring through fruit set, and especially during bud development before flowering. Calcium and boron arrive together, exactly when new tissue is formed.

  1. 1
    Early springStart as the buds swell and new growth begins.
  2. 2
    Bud developmentThe key window before flowering for more buds and a longer bloom.
  3. 3
    Fruit setKeep going every 15 days from early fruit set for firm, long-lasting fruit.

Why CALCIBOR

Stronger plants from the inside out

More buds, longer bloom

Extends the blooming period and increases bud production.

Firmer plant tissue

Strengthens tissue consistency in leaves, flowers and fruit.

Longer shelf life

Improves the shelf life of fruits and flowers after harvest.

Better storage durability

Enhances storage capacity and durability of the harvest.

Resilience under stress

Improves plant responses in adverse conditions.

Dissolves fast and fully

Fast dissolution and complete solubility for clean foliar sprays.

Application · foliar

For orchards, vineyards and gardens

Recommended foliar rates. Adjust to crop, growth stage and local conditions, or ask our agronomists for a programme.

Crop Dosage Timing
Fruit trees, grapes, citrus, olive, tropical
 3–5 kg/ha Every 15 days from early fruit set
Vegetables, strawberry
 2–3 kg/ha Every 15 days from early fruit set
Horticulture
 3–5 kg/ha From early fruit set
Flowers, ornamentals
 1.5–2.5 kg/ha Every 15–20 days, under stress conditions

Technical data

Physical & chemical properties

Water solubility (20 °C)
350 g/l
pH (1% solution)
6.5 ± 0.5
EC (0.1% solution)
0.36 ± 0.02 mS/cm
EC (1% solution)
0.90 ± 0.2 mS/cm
Form
Micro granular
Pack size
1 kg bag

ZENITH CALCIBOR bag

Plan your spring programme with our agronomists

Tell us your crop and growth stage, and we will recommend the right CALCIBOR rate and timing.

Contact ZENITH Call (+49) 551 29131818