Certifications
Van Iperen WS NPKs are top quality blends made from the purest raw materials, with limited caking sensitivity and with high level EDTA-chelated micro-nutrients for fertigation or foliar application. Van Iperen WS NPK | 12 - 12 - 36 + 2MgO + TE is part of our Quality Yield line. Our Quality Yield line comes with high Potassium formulas, destined to be used as of fruit/tuber set and during fruit development until maturation stages.
It is well known that adequate Potassium levels are crucial to crops to achieve higher quality yields. In addition to the central role of Potassium in ensuring higher yields and enhanced fruit quality, it also plays an important role in general plant health and drought resistance.
- Improves fruit quality, shelf life and increases plant drought resistance
- Micronutrients 100% chelated and fully available
- Developed for fertigation in open field and greenhouses. Also suitable for foliar application
- Produced in a broad range of intense colours, to distinguish the product and the final solution
Certifications
- Dissolves rapidly
- Low in Sodium and Chloride
- Available in 9 intense colours
- Easy to handle, dissolve and apply
- Production process certified according to ISO 9001:2015
Fertigation
| Crop | Application date | Min kg/ha/season | Max kg/ha/season |
|---|---|---|---|
Fruit trees |
• As of fruit setting • Until 4 weeks before harvesting |
150 | 300 |
Fruit vegetables |
• As of fruit setting • Until 2 weeks before harvesting |
100 | 300 |
Leaf vegetables |
• As of vegetative growth • Until 2 weeks before harvesting |
100 | 250 |
Strawberry |
• As of fruit setting • During production period |
150 | 300 |
Tomato |
• With first production phase and until the end of fertigation cycle | 100 | 300 |
Potato |
• As of tuber initiation • Until tuber filling |
100 | 200 |
Onion |
• Starting bulb formation and up to 2 weeks before harvest | 100 | 200 |
Pepper |
• With first production phase and until the end of fertigation cycle | 100 | 300 |
Brocoli |
• Starting flower formation and until 2 weeks before harvest | 100 | 250 |
Vineyards |
• During entire fertigation program | 100 | 250 |
Watermelon |
• With first fruitset and until the end 2 weeks before harvest | 200 | 350 |
Rose |
• During entire fertigation program | 200 | 350 |
Pineapple |
• At head formation and until 2 weeks before havest | 100 | 250 |
Banana |
• From bunch formation and until harvest | 300 | 500 |
Citrus  |
• During entire fertigation program | 150 | 400 |
Melon |
• As of fruit setting • Until start of maturation |
150 | 300 |
Foliar Application
| Crop | Application date | Min kg / ha / appl | Max kg / ha / appl | Conc. % (w/v)) |
|---|---|---|---|---|
| Fruit trees |
3 - 5 applications: • As of fruit setting • 14 - 21 days interval |
7 | 12 | 0.5 - 1.5 |
| Fruit vegetables |
2 - 4 applications: • As of fruit setting • 10 - 14 days interval |
4 | 8 | 1.0 - 1.5 |
| Leaf vegetables |
• During vegetative growth • Until 2 - 4 weeks before harvesting |
3 | 6 | 0.5 - 1.0 |
| Strawberry |
1 - 3 applications: • As of fruit setting |
5 | 8 | 1.0 - 1.5 |
| Banana |
4 applications: • As of plant establishment • During fruit filling |
6 | 15 | 1.0 - 1.5 |
| Onion |
2 - 3 applications: • 3 weeks after germination • 10 - 14 days interval |
3 | 8 | 0.5 - 1.0 |
| Melon |
3 applications: • During fruit setting • During fruit filling |
4 | 8 | 1.0 - 1.5 |
| Vineyards |
• As of end of flowering • Until 2 - 4 weeks before harvesting |
7 | 12 | 1.0 - 1.5 |
| Citrus |
2 - 3 applications: • As of fruit setting • 14 - 21 days interval |
6 | 15 | 1.0 - 1.5 |
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Compatible with other fertilizers, except Calcium-containing fertilizers. Therefore, a separate fertilizer dissolving tank is required or the fertilizers must be applied at different times. The pH of the tank solution should be above 4.
