Whatsapp
Twitter
Mail
Copy link 
A need for nitrogen? Universol® Opal is a cost-effective, water-soluble fertilizer that contains NPK, magnesium, and trace elements. Suitable for liquid re-fertilization during the main growth phase or to remedy nitrogen deficiency. Plus, it’s easily combinable with Universol® Jade and Saphir for the perfect tank mix.
-
Rich in nitrogen
-
Easy to apply, safe to use, and contains NPK, Mg, and trace elements
-
The ideal tank mix every time, thanks to easily combinable product range
| Recommended Universol® rates | 100% Universol® | 50% Universol®* |
|---|---|---|
| Pot and bedding plants: | ||
| Crops with high fertilizer requirements | 1-2 g/l | 0.5-1 g/l |
| Crops with normal fertilizer requirements | 1-1.5 g/l | 0.5-0.75 g/l |
| Salt sensitive crops | 0.5-1 g/l | Depends on situation |
| Container nursery stock: | ||
| Crops with high fertilizer requirements | 20 g/m2/week | 10 g/m2/week |
| Crops with normal fertilizer requirements | 15 g/m2/week | 7.5 g/m2/week |
| Salt sensitive crops | 10 g/m2/week | 5 g/m2/week |
| Recommended Universol® rates |
| 100% Universol® |
| 50% Universol®* |
*When combined with 50% Osmocote® Exact **Attention** Trial first on a small scale before changing the rate, application or any other variables. As circumstances can differ and the application of our products is beyond our control, ICL cannot be held responsible for any adverse results. Store under dry conditions. Close partly used or damaged bags securely. For best results, always ask your ICL advisor.
Our knowledge
Tips & tricks, disease prevention, crop and market related information
Explore our knowledge