750ml Calcium (Ca) Anti-deficiency Spray

This anti-deficiency treatment with calcium is a ready-to-use solution for preventing and treating calcium deficiencies, which specifically affect certain vegetable, fruit, or floral crops when the soil is unbalanced or depleted. Calcium deficiency manifests itself through various symptoms, which may vary depending on the plants, but it is essential to be able to detect them in order to apply the treatment appropriately. Convenient and very easy to use, this 750ml spray treatment is applied directly to the vegetation of the deficient plant.

To live and multiply, plants need water, about twenty essential nutrients that they find in mineral form in the soil, carbon dioxide (CO₂) present in the air, and solar energy essential for photosynthesis. The basic elements, called macronutrients, are nitrogen (N), phosphorus (P), and potassium (K). They must be present in the soil in significant quantities. The secondary elements, less predominant but nevertheless essential, are calcium (Ca), sulphur (S), and magnesium (Mg). Finally, the trace elements, necessary in very small quantities, are represented by boron (B), iron (Fe), manganese (Mn), molybdenum (Mo), copper (Cu), zinc (Zn), chlorine (Cl), sodium (Na), cobalt (Cao), vanadium (V), and silicon (Si).

The role of calcium in plants: it is a major component responsible for the cohesion of the cell wall, where it is combined with plant proteins in the form of calcium pectinate. When this element is lacking or cannot be properly assimilated, the newly forming tissues are deformed. Calcium is also essential for certain enzymatic activities. This element is absorbed by the plant's roots and transported in the sap to the new shoots where it is used.

Calcium deficiency often manifests in unbalanced, very acidic and poor, porous and filtering soils. Insufficient crop rotation can also be the cause of a deficiency in secondary elements, as plants excessively draw resources from the soil without sufficient replenishment from external sources. The crops most commonly affected by calcium deficiency are: lettuce and related salads, tomatoes, potatoes, zucchinis, strawberries, citrus trees, as well as certain ornamental young plants such as Poinsettias, for example. Affected plants often exhibit browning on old leaves, yellowing of young shoots, and the appearance of necrosis on fruits and vegetables. The 'blossom-end rot' in tomatoes is probably the most well-known manifestation of this deficiency among gardeners.

This ready-to-use liquid treatment helps prevent calcium deficiency in advance or resolve it in affected plants.

Instructions for use:

- Spray directly onto the plant
- Use at least 45 days after planting
- Apply preventively every 15 days
- Once a week when symptoms appear
- Use from April to September

Fertilizer for mineral nutrient solutions NF U 42-004. Ready-to-use solution of major and secondary elements