Leaf-NPK vital
Most important nutrients
Supporting nutrients
Keeps crops vital
Optima Leaf-NPK vital is a liquid NPK leaf fertiliser (6-20-5), high in phosphorus content and enriched with amino acids. The nutrients in Optima Leaf-NPK vital stimulate crop growth, therewith increasing yield and quality.
Optima Leaf-NPK vital contains high levels of phosphate as well as nitrogen, potassium and added amino acids. These components support root growth and improve crop development. Application of Optima Leaf-NPK vital enables the crop to make better use of the fertilisers supplied to the soil, especially under less favourable soil and climate conditions.
Optima Leaf-NPK vital ensures a good start for the crop. It also provides and retains crop colour. It helps to keep crops vital if fertilisation via the roots is not optimal, for example in case of root stress and wet or cold conditions.
Benefits of Optima Leaf-NPK vital
Complete NPK foliar fertiliser with added amino acids.
Supports plants at key growth and development stages such as rooting, flowering and fruit setting.
Improves yield and quality.
CE fertiliser
When to apply
During leaf development and in the crop’s key growth and development stages, when the demand for nitrogen, phosphate and potassium is high and nutrient uptake via the roots is temporarily suboptimal.
Optima Leaf-NPK+ is applied from emergence onwards, in repeated applications, to support growth, colour, vitality, yield and quality.
Particularly relevant:
- In cases of root stress;
- Under cold or wet conditions;
- During crucial growth stages such as root development, vegetative growth, flowering and fruit set;
- When the crop requires extra energy and nutrients in addition to soil fertilisation.
Functions of nitrogen
- Structure of amino acids and proteins
Nitrogen forms the basis of proteins → essential for virtually all growth and development processes. - Component of chlorophyll
Crucial for photosynthesis; without sufficient nitrogen, the plant can barely convert light into energy. - Growth of above-ground biomass
Stimulates leaf growth, stem growth and general vegetative development. - Component of enzymes and coenzymes
Helps regulate biochemical processes such as energy production and nutrient uptake. - Component of nucleic acids (DNA/RNA)
Essential for cell division, genetic information and new tissue formation. - Improvement of sap flow and transport processes
Supports the transport of water, sugars and minerals through the plant. - Influencing fruit quality and yield
A good nitrogen balance ensures optimal fruit size and yield (but too much has a negative effect). - Colour and general vitality of the plant
Sufficient nitrogen ensures dark green foliage and a healthy appearance.
Functions of phosphorus
- Energy transfer (ATP production)
Phosphorus is a component of ATP, the energy carrier in cells. Without P, a plant cannot store or use energy. - Root development
Stimulates the formation of strong, deep roots and more root hairs → improved nutrient and water uptake. - Early plant growth
Promotes a vigorous start and faster development of young plants and seedlings. - Flowering and fruit set
Essential for bud formation, flowering, fruit set and seed formation. - Photosynthesis and sugar formation
Plays a role in the conversion and transport of sugars within the plant. - Cell division and DNA/RNA formation
Phosphorus is a component of nucleic acids → essential for growth, cell division and all genetic processes. - Strengthening of plant structure
Supports the production of phospholipids in cell membranes → improved cell structure and stress resistance.
Functions of potassium
-
- Regulates water balance
- Controls the opening and closing of stomata.
- Improves drought tolerance through more efficient water use.
- Activates hundreds of enzymes
- Essential for enzymes involved in photosynthesis, respiration and protein synthesis.
- Promotes photosynthesis and energy transport
- Plays a major role in the formation and transport of assimilates (sugars) within the plant.
- Improves stress resistance
- Increases tolerance to drought, cold and salt stress, amongst other things.
- Optimises cell elongation and firmness
- Helps maintain turgor pressure, resulting in strong, firm cells.
- Stimulates root growth and nutrient uptake
- Improves the uptake of other nutrients such as nitrogen and phosphate.
- Enhances fruit quality
- Improves flavour, size, firmness, colour and shelf life.
- Regulates water balance
Composition
| Nitrogen (N) total | 72 g/L |
| Nitrogen (N) ammoniacal | 68 g/L |
| Nitrogen (N) organic | 3,6 g/L |
| Phosphate (P2O5)* | 251 g/L |
| Potassium (K2O)* | 63 g/L |
| Amino acids total | 23 g/L |
| Specific gravity | 1,27 kg/L |
| pH | 6,5 - 7,5 |
| Appearance | clear light brown liquid |
| *soluble in water |
Application rates
Foliar application (maximum concentration 1:50)
Arable crops:
2-5 liter per hectare.
Apply 1 to 5 times during leaf development.
Potatoes:
2-5 liter per hectare.
Apply 1-3 times per year during leaf development.
Grain crops:
2-4 liter per hectare.
Apply 1-2 times per year during leaf development.
Rapeseed:
2-4 liter per hectare.
Apply 1-2 times per year during leaf development.
Maize:
2-4 liter per hectare.
Apply 1-2 times per year during leaf development.
Wheat:
3-4 liter per hectare.
Apply 1-2 times per year during leaf development.
Vegetable crops:
3-5 liter per hectare.
Apply 2-6 times per year during leaf development.
Fruits cultivation:
2-4 liter per hectare.
Apply 2-5 times per year during leaf development.
Ornamental crops:
2-4 liter per hectare.
Apply 2-5 times per year during leaf development.
Tree nursery:
3-5 liter per hectare.
Apply 2-5 times per year during leaf development.
Other crops:
2-5 liter per hectare.
Apply 1-10 times per year during leaf development.
Packaging
Available in 10, 300 and 1000 litre containers.
Instructions for use
- Shake or stir well before use.
- Store in a cool dry place away from direct sunlight.
This product has been tested and can be stored safely at temperatures from 5°C to 25°C. Crystallisation and/or sedimentation may occur below 5°C. - Apply under suitable spraying conditions (e.g. temperature, humidity, wind speed). Do not treat if the temperature is >25°C or if it might rise to >25°C in the hours after application. Preferably perform the treatment at the end of the day. Do not apply the product close to harvesting.
- Note: Do not exceed the maximum concentration of 1L product on 50L spray solution. Do not apply foliar treatment to seedlings less than 15cm tall.
- Miscibility and/or efficacy cannot be guaranteed when combined with any other agent. Before mixing, it is recommended to perform a test on a small scale.
- Do not mix with other products in pure, undiluted form. Not compatible with products containing calcium.
- We recommend carrying out a trial application on a small area first, before applying to the entire plot.
- The shelf life of the product is stated on the label. As long as the guidelines for storage are followed and the packaging is not opened, the expiry date (BB) on the label is guaranteed.
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