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Activator of the natural defenses of plants.


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FOSS CAL BORO is a product developed for the prevention and correction of deficiencies of calcium and boron, and as an agent that induces the natural defenses of plants.
Calcium is a key element for the life cycle of plants, influencing the processes involved in germination and the maturation of the fruits. Calcium increases the resistance of plant tissues. FOSS CAL BORO provides high mobility calcium, which is why it is especially recommended to control different physiopathies caused by deficiencies of this element, such as apical necrosis, fruit fall in citrus, bitterpit in apples, and black heart in beet, etc.
Boron is a micronutrient with an important structural and essential role in the growth of plants. It intervenes in the metabolism of nucleic acids and in that of carbohydrates. It favors the absorption of cations and water. It is involved in the assimilation of phosphorus and the synthesis of B vitamins in plants.
Phosphorus from FOSS CAL BORO increases the resistance of the plant against cryptogamic diseases. Phosphite ion stimulates growth and acts on the plant’s hormonal system, promoting the production of phytoalexins, low molecular weight antimicrobial compounds, which limit the action of pathogens. FOSS CAL BORO is rapidly absorbed and translocated to all parts of the plants with minimal energy expenditure.


Guaranteed Analysis (% w/v)
Total Nitrogen (N) 8,12%
Calcium Oxide (CaO) water soluble 5,00%
Phosphorus pentoxide (P#*2*#O#*5*#)  water soluble 14,37%
Boron (B) in mineral form and water soluble 0,62%