Natural humic acid biostimulant
Black Leo
Black Leo is a biostimulant with a high content of natural humic acids in nanoparticle form. It stimulates root growth, supports the biological activity of the soil and improves nutrient uptake by the root system.
- Stimulated root growth and better nutrient uptake
- Soil biological activity supported
- Cation exchange capacity improved
- Reduced salinity for better-fed crops
- More uniform yields, including under difficult conditions
- 28.5% humic acids and 1.5% fulvic acids
How to use
Form: Liquid
Application: Foliar / Fertigation
Crops: All crops — open field, orchards and greenhouse crops
| Crop / Use | Application rate |
|---|---|
| Cereals and legumes | Pre-sowing: 8–10 L/ha. Post-sowing: 3 L/ha in the row, every 14–21 days |
| Fruit trees, vines, olives, almonds | Transplanting: 25 mL in 10 L of water per tree. Before bud break: 25 mL in 10 L of water per tree, especially for young trees or very poor soils. After bud break: 2–4 L/ha every 14–21 days |
| Potatoes, beet and vegetables | Pre-sowing: 8–10 L/ha. Post-sowing: 3 L/ha in the row, every 14–21 days |
| Greenhouses | Fertigation at 0.2% up to 300–500 mL/1000 m² |
| Foliar application | 1–2 L/ha, in a volume of 500 to 1000 L |
Product composition
Our Catalogue
Product catalogue 2026
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