Calibre. Rozmiar ma znaczenie
Micronized calcium increases yield size and quality
Nature's mineral precision
Calibre is a modern, all-natural foliar fertilizer solution. It is an effective way of providing calcium to plants from the earliest stages of development. Calibre particles have an unprecedented small, microscopic size, so they are perfectly absorbed and precisely assimilated by plants, as in nature. Micronization of fertilizer particles means getting precise dosage without risk of phytotoxicity. Moreover, the simplicity and economy of application make Calibre the natural choice for many crops, even in organic production.
plays an essential role in mitotic division processes, cell growth and differentiation (key for root system development and trichomes)
Calcium and plants
is responsible for the firmness and durability of the fruit, preventing storage diseases
naturally stimulates and prolongs photosynthesis so that the plants age later
builds cell walls, together with pectin and cellulose increases their stability and strength, providing resistance to attacks by pathogens (e.g. parasitic fungi)
together with potassium ions regulates the functioning of the stomata, the rational water policy of the plant (transpiration)
is in charge of the endocrine and respiratory enzymes functioning
Calcium (Ca) is not only important for the soil (regulating its pH, structure and properties). Ca is indispensable for plants themselves:
Ca deficiencies mean poor plant health
and low yields and are often caused by:
When plants lack Calcium...
Shortages of the element in the soil
Low temperatures, precipitation or drought (especially at the beginning of the growing season)
This results in reduced uptake of Ca from the soil and poor development of the root system. Foliar calcium provision is then essential.
The innovative Calibre formula allows introduction of the necessary calcium into the plant tissue in the earliest stages of development.
Improves crop firmness and quality
Calibre is created for plants because it:
Increases the dry matter content of your crops
Enhances growth and revitalizes the plant, increases its physiological resistance to stress factors
Naturally stimulates and prolongs photosynthesis
Causes less water uptake by plants, increasing their resistance to water shortage
How Calibre works
Calibre™ helps plants beat drought!
Very high natural calcium content
Calibre stands for:
Presence of trace elements
Micron-sized extraordinary structure
Completely natural and safe solution
No risk of phytotoxicity
Originally extracted from unique natural deposits of marine origin, Calibre is the result of an innovative, highly technological process of pure minerals micronisation with the help of using special jet mills, used e.g. in pharmaceutical industry.
How Calibre is made
The micronisation process takes place through the mutual collision of hard mineral particles driven at enormous speeds. As a result, Calibre particles achieve a microscopic size, a multiplied and active surface area, all while maintaining maximum purity of the final product.
Composition, %
CaCO3 : 96,03
(incl. CaO: 53,78)
Thoroughly tested by the National Institute of Soil Science according to EU Directives 384/2007 and 889/2008, Calibre is qualified for use in organic farming.
Calibre for organic farming

Innowacyjna formuła Calibre™ pozwala na wprowadzanie niezbędnego wapnia do tkanki roślinnej w najwcześniejszych fazach rozwojowych.
Dr. Kaliber knows well that
Calibre is easy to use
Calcium is typically a difficult to dissolve element. Micronized Сalcium, in the form of Calibre, is easy to mix in water. It forms a stable colloidal suspension, providing an effective way to deliver this key mineral to the plant.

Calibre can be applied with all types of sprayers.

How to use Calibre
The basic dose is only
300 g / 100 l of water
Pears, apricots and peaches
3-5 applications of 1 kg/ha starting from fruit setting stage (every 10-14 days)
Cherries, plums
3-5 applications of 1 kg/ha starting from fruit setting stage (every 10-14 days), 3 applications every 7 days before harvest, intervention against fruit cracking before the forecasted rain

Soft fruits (strawberries, raspberries, blueberries, currants)
3-4 applications of 1 kg/ha - bud stage, beginning of flowering, green fruit, before harvest on ripe fruit
Brassica vegetables, lettuce
3 applications of 1 kg/ha in the head setting period
Tomato, bell pepper, cucumber
3 applications of 1 kg/ha - flower bud, full flowering and after fruit setting
Cereals (winter, spring)
2 applications of 1 kg/ha - from tillering stage to the second knee stage and from the flag leaf stage to the end of earing
Sugar beet
2 applications - 0.5 kg/ha at the stage of 6-8 leaves and 1 kg/ha before sward closure
1 kg/ha at 3-6 leaf stage
Winter rape
2 applications of 1 kg/ha - in the autumn at the stage of 4-6 leaves and in the spring after the start of vegetation
2-3 applications of 1 kg/ha - the first one after full emergence (10-15 cm of plant height), next ones every 14-21 days

Root vegetables
2-3 applications of 1 kg/ha - the first at the stage of 3-4 leaves or 7 days after planting, the next every 14-21 days
5-6 applications of 0.5-1 kg/ha - from the bud opening through consecutive development stages (green or pink bud, beginning of flowering, petal falling, twice on forming fruit every 10-14 days)
Types of packaging
1 kg | 3 kg | 9 kg and 25 kg
supports the winners
and health
Fruits fed with Calibre have great firmness and sweetness. Our partners use them to produce healthy products
Microlife sp. z o.o.
309 Obornicka Str.
60-689 Poznań
Contact us:
+48 604 962 962
+48 698 592 300

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