VitaFer S-Aktiv Plus

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VitaFer® S-Aktiv Plus is an advanced foliar fertiliser with a high content of readily available sulfur, enriched with glycine betaine as a metabolic bioactivator. Its innovative formulation enables rapid correction of sulfur deficiencies and supports key metabolic processes in plants. The product has been designed as an ideal complement to UAN fertilisers, optimising the efficiency of fertilisation programmes in agricultural, vegetable, and fruit crops.

Description

Key effects:

Metabolic Bioactivators
Glycine betaine enhances nutrient transport, stimulates protein synthesis, and optimises nitrogen utilisation from UAN fertilisers.

Rapid Correction of Sulfur Deficiencies
Effectively corrects sulfur deficiencies within 5–7 days, restoring intense green colouration and full metabolic activity of plants.

Synergistic Support for UAN
Maximises the utilisation of nitrogen and sulfur from fertilisers, increasing fertilisation efficiency.

Improved Stress Tolerance
Glycine betaine enhances tolerance to drought, extreme temperatures, and oxidative stress, helping protect yield potential.

Support for Natural Plant Defences
The product is recommended for spring applications to strengthen the plant’s natural resistance to fungal diseases.

Ingredients:

Macronutrients % m/m % m/v
Nitrogen (N) 15,60 20,44
Sulphur (SO₃) 52,50 68,78
Density: 1,31 kg/l
pH: 8,0-9,0

The role of sulphur in crops: 

  • favourably influences protein and fat synthesis in the plant 
  • enhances photosynthesis 
  • increases the dry matter of the plant 
  • increases nitrogen productivity, resulting in better plant growth 
  • increases the plant’s resistance to abiotic stresses (low and high temperatures, water shortage)  
  • increases the plant’s resistance to biotic stresses – helps control fungal diseases, especially powdery mildew. 

Sulphur deficiencies result in:

  • In acute deficiency, there are characteristic symptoms of sulphur deficiency and consequent reduction in yield and quality. Symptoms are observed on the youngest leaves.
  • Reduced photosynthetic activity
  • Stunted growth, small leaves, spoon-shaped leaves
  • Inhibition of protein and chlorophyll synthesis
  • Reduction in the size of the flowers, their falling off shortly after the start of flowering
  • Reduction in the size of the silique and the number of grains in the silique
  • Poor growth of young roots

Dosage and timing of application:

Crop Rate (l/ha) Applications
Field crops 3-5 (1-1,5% UAN) 1–3 applications during intensive spring vegetative growth (as an enriching additive to UAN fertilisers)
Fruit and berry crops 3 2–3 applications from the green bud stage; do not apply during flowering
Vegetables 3 1–2 applications during periods of intensive growth