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Calcium + Phos-Max + Vitol in Chinese Cabbage | Almeirim

Efficacy Trial
November 10, 2026 by
DIRD

Products





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Phos-max - High-efficiency phosphorus nutrient solution complexed with Micro-Carbon™ Technology (MCT). Stimulates root development, amino acid and protein (ATP) production, and promotes flowering and fruit set.

Calcium – Calcium-based solution complexed with Micro-Carbon™ Technology (MCT), corrects deficiencies in poor soils and demanding crops. Compacts the cells, which increases the resistance of stems and leaves against diseases and intensifies root growth.

Vitol - Fertilizer solution of organically complexed macro and micronutrients with Micro-Carbon™ Technology (MCT). Promotes vigorous vegetative growth, cell division and vertical elongation, and increases the size and uniformity of fruits even during stress periods.




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Methodology

The production system used for Chinese cabbage is the NGS , in a greenhouse with a drip irrigation system.

The products Vitol, Calcium and Phos-max were all applied at a concentration of 250 mL/100L, via foliar, on January 21, 2022. Photographic records of the plants were made biweekly.

On February 9, 2022, all marketable plants in the 40 m² treated area and in 40 m² control were harvested, weighing boxes with
25 cabbages each. The production obtained was estimated for 1 ha (kg/ha).


Results and Discussion

This action aimed to increase the individual weight of the Chinese cabbages.

On February 9, an estimated production was obtained in the Control plot of 4,218.75 kg/ha, while in the Treated plot it was 4,723.75 kg/ha (12%).
Treated Chinese cabbages (below) and control (above). Treated 1 and Control 1.
Treated Chinese cabbages (below) and control (above). Treated 1 and Control 1.


Treated Chinese cabbages (below) and control (above). Treated 2 and Control 2.
Treated Chinese cabbages (below) and control (above). Treated 2 and Control 2.


It was found that in the Treated plot there were more plants with a weight suitable for marketing, that is, with a single application of the products, more plants reached the desired size for harvest, which implies a reduction in production costs (consumables and labor).

Weighing on February 9, 2022

Weighing on February 9, 2022.


Production Difference (kg/ha)    +505kg

Profitability Difference (€/ha)    +757.5€


Conclusion

Chinese cabbages are purchased for a value of 1.5 €/kg. With an application cost of 174 €/ha, the investment in applying these products is justified.



The averages of the farms reflect the edaphoclimatic context and particular cultural practices of that plot.


Producer: Inês Silva

Location: Almeirim

Planting Date: November 2021

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DIRD November 10, 2026
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