Product Type
Phosphorus and potassium fertilizer for extensive crops
X-PK
High-concentration phosphorus and potassium fertilizer for extensive crops, supporting energy balance, root and fruit development, yield and crop quality.
X-PK is a liquid phosphorus and potassium fertilizer formulated with 45% P₂O₅ and 50% K₂O. It is designed especially for extensive crops and for stages where a concentrated supply of phosphorus and potassium is required.
The formulation combines high macronutrient solubility with selected raw materials and is described as free from impurities and chlorine. Its crop programmes cover early vegetative development, nitrogen-use efficiency, root growth, fruit and tuber development, firmness, colour, sugar formation, maturation and yield.
Technical Profile
Key product information at a glance.
Formulation
Liquid
Origin
Imported from EU
Key Composition
45% P₂O₅ · 50% K₂O
Application
Foliar spray · Soil application
Available Pack Sizes
1 L · 5 L · 20 L · 1000 L
Composition and guaranteed analysis
| Composition | % w/v |
|---|---|
| Phosphorus (P₂O₅) | 45.0 |
| Potassium (K₂O) | 50.0 |
Key benefits and agronomic effects
- Provides a highly concentrated supply of phosphorus and potassium.
- Supports energy balance, crop vitality and nitrogen-use efficiency.
- Supports root, tuber and fruit development.
- Supports fruit firmness, size, colour and sugar formation.
- Supports maturation, yield and crop quality.
- Provides highly soluble macronutrients and is described as free from impurities and chlorine.
How it works / Technical advantages
X-PK supplies phosphorus and potassium in a highly soluble liquid formulation. The source highlights the use of selected raw materials, high macronutrient solubility and freedom from impurities and chlorine.
The 45-50 P-K profile is intended for specific vegetative and productive stages where both nutrients are required, including early development, root growth, reproductive development, tuber growth, fruit sizing, firmness and maturation.
Application rates and timing
Application Guidance: Use the crop-specific foliar programmes below. General foliar guidance is 3-5 L/ha in at least 200 L water, or 0.5-1% concentration; for sensitive crops and crops under glass or film, use 0.25-0.5%. Although the product is also identified for soil use, no separate soil dosage is provided in the source.
Foliar application
| Crops | Timing | Dose | Notes |
|---|---|---|---|
| All crops | When required | 3-5 L/ha | Use in at least 200 L water or at 0.5-1%. For sensitive crops and under glass/film, use 0.25-0.5%. |
| Cereals — spring programme | In spring from the start of vegetation | 4 L/ha | 2 applications, particularly under cold and moist conditions. Aim: energy balance, yield, N efficiency and vitality. |
| Cereals — autumn programme | In autumn from the 3-leaf stage | 4 L/ha | Particularly under cold and moist conditions. Aim: energy balance, N efficiency, vitality and winter hardiness. |
| Legumes, including soybean | From the 6-leaf stage | 4 L/ha | 2 applications. Aim: nodulation, quality and maturation. |
| Maize | From the 4-leaf stage | 4 L/ha | Particularly under cold and moist conditions. Aim: initial development, energy balance, N efficiency and vitality. |
| Oilseed rape | In spring from the start of vegetation through to the beginning of flowering | 4 L/ha | 1-2 applications, particularly under cold and moist conditions. Aim: energy balance, N efficiency and vitality. |
| Sunflower | From the 4-leaf stage | 4 L/ha | Particularly under cold and moist conditions. Aim: initial development, energy balance, N efficiency and vitality. |
| Sugar beet | From the 6-leaf stage | 4 L/ha | 2 applications. Aim: leaf structure, juvenile development, N efficiency, root growth and sugar formation. |
| Potatoes | From a tuber diameter of 10 mm | 4 L/ha | 2 applications. Aim: yield, tuber and skin quality and tuber growth. |
| Strawberries — early development | Start of vegetation | 4-6 L/ha | 2 applications. Aim: initial development, vitality, energy and water balance and N efficiency. |
| Strawberries — fruit development | From fruit set to harvesting | 4-6 L/ha | 1-3 applications. Aim: fruit firmness and fruit size. |
| Pome fruit | Between June fruit drop and harvesting | 4-6 L/ha | 2-4 applications. Aim: red top colour, fruit size and fruit firmness. |
| Stone fruit | From fruit set to harvesting | 4-6 L/ha | 2 applications. Aim: fruit firmness, fruit size and sugar content. |
| Soft fruit — fruit development | From fruit set to harvesting | 4-6 L/ha | 1-3 applications. Aim: fruit firmness and fruit size. |
| Soft fruit — early development | Start of vegetation | 4-6 L/ha | 2 applications. Aim: initial development, vitality, energy and water balance and N efficiency. |
| Desert grapes | From the 5-leaf stage to the beginning of flowering | 4-6 L/ha | 2 applications. Aim: initial development, vitality, energy and water balance and N efficiency. |
| Wine grapes | From the 5-leaf stage to the beginning of flowering | 4-6 L/ha | 2 applications. Aim: initial development, vitality, energy and water balance and N efficiency. |
| General vegetables | Once sufficient leaf mass has developed | 4-8 L/ha | 1-2 applications, particularly under cold and moist conditions. Aim: initial development, vitality, energy and water balance and N efficiency. |
| Asparagus | From the middle of the vegetation period | 4-6 L/ha | 1-3 applications. Aim: energy balance, yield, N efficiency, reserve-substance deposition and vitality. |
Additional technical information
Target problem / deficiency symptoms
X-PK is intended for crop stages where additional phosphorus and potassium are required, including early vegetative growth, root and tuber development, flowering-related stages, fruit set, fruit sizing, firmness, maturation and sugar formation. The crop table also positions it for energy balance, nitrogen-use efficiency and vitality, especially under cold and moist conditions.
Frequently asked questions
What is X-PK?
X-PK is a liquid phosphorus and potassium fertilizer containing 45% P₂O₅ and 50% K₂O.
What is X-PK used for?
It is used to provide concentrated phosphorus and potassium during crop stages such as early growth, root development, fruit set, fruit sizing, maturation and tuber development.
Is X-PK especially suitable for extensive crops?
Yes. The product is specifically presented for extensive crops, with crop programmes for cereals, maize, oilseed rape, sunflower, sugar beet and potatoes.
What is the general foliar dose of X-PK?
Apply 3-5 L/ha in at least 200 L of water or at a concentration of 0.5-1%.
What concentration should be used on sensitive crops?
For sensitive crops and crops under glass or film, use a concentration of 0.25-0.5%.
Can X-PK be used on cereals?
Yes. The source provides separate spring and autumn cereal programmes at 4 L/ha.
Can X-PK be used on fruit crops?
Yes. Specific programmes are provided for strawberries, pome fruit, stone fruit, soft fruit and grapes.
Can X-PK support tuber and root crops?
Yes. The source includes programmes for potatoes and sugar beet, targeting tuber growth, root development, quality and sugar formation.
Does X-PK contain chlorine?
The product is described as 100% free from impurities and chlorine.
What pack sizes are available?
X-PK is available in 1 L, 5 L, 20 L and 1000 L formats.
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