The Nergetic Olivo Cetrico 20-5-15 +2MgO +0.2B +0.1Zn is an advanced controlled-release fertilizer for olive trees, specifically formulated to meet the nutritional demands of olive cultivation throughout all critical growth stages. Thanks to the innovative C-PRO technology, each granule is coated with a biodegradable polymer that transforms into a gel when in contact with soil moisture, effectively protecting all nutrients from leaching, even under heavy rainfall or improper irrigation conditions. Unlike conventional fertilizers that mainly protect nitrogen, Nergetic Olivo Cetrico ensures the gradual and balanced release of nitrogen, phosphorus, potassium, magnesium, boron, and zinc over a period of 3–5 weeks, without limiting their availability to the plant. This controlled nutrition promotes a stronger root system, enhanced vegetative growth, and more efficient nutrient uptake, while significantly reducing nutrient losses and nitrogen volatilization. The result is healthier olive trees, improved flowering and fruit set, and proven yield increases in both quantity and quality of olive production. Manufactured by the internationally recognized Spanish company FERTIBERIA, this product is an ideal solution for professional growers seeking a high-performance, reliable, and technologically advanced granular fertilizer for olive trees.

C-PRO technology is an innovative solution in modern plant nutrition, offering controlled nutrient release and maximum nutrient uptake by crops.
Thanks to its biodegradable polymer, which forms a protective layer around each granule, C-PRO creates a natural gel that reduces nutrient leaching and keeps nitrogen, phosphorus, and potassium available in the rhizosphere for longer periods. This allows plants to absorb nutrients exactly when they need them.
In addition, the biostimulant effect of C-PRO technology significantly improves Nutrient Use Efficiency (NUE), resulting in:
Higher crop yields
Improved plant nutrition
Enhanced agronomic indicators (AE, NE)
C-PRO technology enhances nutrient availability across all soil types and pH ranges, delivering excellent performance in both basal and top-dressing fertilization across a wide range of crops.
C-PRO Technology of Fertiberia TECH Fertilizers
Brochure
| Fertilizers & Growth Substances | |
| Category | Synthetic Inorganic Fertilizers |
| Type | Complex Controlled Release Fertilizers |
| Form | Granular |
| Product | Nergetic Olivo Cetrico Λίπασμα Ελιάς 20-5-15+TE 1/2 Months |
| Fertilizer Label | 20-5-15 +2Mgo+0.2B+0.1Zn |
| Granulometry | - |
| Crops | The granular gradual release fertilizers Nergetic Olivo Cetrico Olive 20-5-15+TE 1/2 Months 25kg are applied to olive trees and groves |
| Application Rates | - |
| Application | Nergetic gradual release granular fertilizers are applied by hand or with a spreader. |
| Storage | The Fertilizer Nergetic must be kept away from direct sunlight, as well as protected from dirt, heat & moisture. |
| Weight of Fertilizer-Enhancer | 25 kilograms |
| Package | Bag |
| Brand | Fertiberia |
| Origin | Spain |