Athena Pro Core Soluble Calcium & Nitrogen Base Fertiliser
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Athena Pro Core – Soluble Calcium, Nitrogen & Micronutrient Fertiliser
Athena Pro Core is the foundational dry mineral fertiliser in the Athena Pro Line, providing readily available nitrogen, calcium and essential micronutrients throughout the crop cycle. Designed for professional horticulture and precision fertigation, Pro Core works alongside Athena Pro Grow during vegetative growth and Athena Pro Bloom during flowering.
Its highly refined, fully water-soluble mineral formulation is engineered for clean stock-tank preparation and accurate nutrient delivery. Pro Core dissolves completely at room temperature when correctly prepared, making it particularly suitable for automated dosing systems, high-frequency irrigation and professional fertigation installations.
Key Features & Benefits
- Core component of the Athena Pro Line for use throughout vegetative and flowering growth.
- Provides readily available nitrogen and calcium alongside essential micronutrients.
- Nitrogen supports chlorophyll and amino acid formation.
- Calcium contributes to normal plant structure and development.
- Supplies iron, manganese, copper, zinc, boron and molybdenum.
- 100% water-soluble dry mineral formulation designed to dissolve completely at room temperature.
- Designed to produce clean stock concentrates without unwanted particulates or sediment when correctly mixed.
- Compatible with professional dosing equipment including Dosatron, Netaflex and Rhythm systems.
- Suitable for automated fertigation and high-frequency irrigation programmes.
- Low heavy metal content according to Athena's current product specification.
- Concentrated dry format simplifies storage and reduces the amount of water transported compared with equivalent liquid fertilisers.
What Does Athena Pro Core Do?
Athena Pro Core provides the calcium, nitrogen and micronutrient foundation required by the Athena Pro Line. Rather than functioning as a standalone stage-specific fertiliser, Core is combined with the appropriate Pro Line component to create a complete nutrient programme.
During vegetative growth, Athena Pro Core is paired with Athena Pro Grow. When plants transition into flowering and fruiting, Pro Core is paired with Athena Pro Bloom. This two-part approach allows the main nutrient profile to change between growth stages while maintaining a consistent source of calcium, nitrogen and essential trace elements.
Pro Core Nutrient Function
| Nutrient | Primary Function |
|---|---|
| Nitrogen | Supports chlorophyll formation, amino acid production and normal vegetative development. |
| Calcium | Supports normal cell structure and plant development. |
| Iron | Essential micronutrient involved in chlorophyll formation and plant metabolic processes. |
| Manganese | Supports normal enzyme activity and photosynthetic processes. |
| Copper | Essential trace element involved in normal plant enzyme processes. |
| Zinc | Supports normal enzyme activity and plant development. |
| Boron | Essential micronutrient involved in normal plant growth and structural development. |
| Molybdenum | Essential trace element involved in normal nitrogen metabolism. |
Ingredients
- Calcium Nitrate
- Iron EDTA
- Manganese EDTA
- Copper EDTA
- Zinc EDTA
- Boric Acid
- Sodium Molybdate
Use Pro Core with Pro Grow or Pro Bloom
Athena Pro Core is designed to be combined with another Athena Pro Line base fertiliser. The accompanying product changes according to the stage of plant development:
- Vegetative Stage: Athena Pro Core + Athena Pro Grow
- Flowering Stage: Athena Pro Core + Athena Pro Bloom
Pro Grow and Pro Bloom provide the stage-specific NPK profile, while Pro Core supplies the complementary calcium, nitrogen and micronutrients required by the Athena Pro Line feeding programme.
Preparing Athena Pro Core Stock Concentrate
Athena recommends preparing Pro Core as a concentrated liquid stock solution rather than repeatedly adding small quantities of dry fertiliser directly to the final working reservoir.
For metric preparation, Athena's recommended Pro Line concentrate is approximately 226 g per litre. This is based on approximately 2 lb (907 g) per 4 litres of final stock solution.
- Use a clean stock tank or measuring vessel with accurate volume markings.
- Part-fill the vessel with clean water.
- Slowly add the required amount of Athena Pro Core while continuously stirring or agitating the water.
- Continue mixing until the dry mineral granules have completely dissolved.
- Add additional water until the required final stock-solution volume is reached.
- Mix thoroughly again to produce a completely uniform concentrate.
Important: Athena's imperial concentrate is based on 2 lb per US gallon, while the metric reference uses 2 lb per 4 litres. Always follow the dosage chart that corresponds with the stock concentration you have prepared.
Athena Pro Core Dosing by Target EC
When Pro Core is prepared at Athena's recommended 226 g/L metric stock concentration, the following amounts of Pro Core concentrate are used per 10 litres of working nutrient solution according to the desired target EC.
| Target EC | Pro Core Concentrate per 10 L | Pro Grow / Bloom Concentrate per 10 L |
|---|---|---|
| 1.0 | 16 mL | 27 mL |
| 1.5 | 25 mL | 42 mL |
| 2.0 | 34 mL | 57 mL |
| 2.5 | 44 mL | 73 mL |
| 3.0 | 54 mL | 90 mL |
| 3.5 | 64 mL | 107 mL |
| 4.0 | 75 mL | 124 mL |
These figures apply specifically to a 226 g/L stock concentrate. If a different concentrate strength is prepared, the dosing volume must be adjusted accordingly. Always confirm the final nutrient strength with an accurate EC meter.
Professional Fertigation Compatibility
Athena Pro Core is engineered for complete solubility and clean operation in professional fertigation systems. Athena specifically lists compatibility with:
- Dosatron dosing systems
- Netaflex fertigation systems
- Rhythm dosing systems
- Stock-tank irrigation systems
- Automated nutrient injection systems
- High-frequency irrigation systems
The fully soluble mineral formulation is designed to minimise unwanted sediment and particulates in stock tanks, reservoirs and irrigation equipment when correctly prepared and maintained.
Available Sizes
- 10 lb / approximately 4.54 kg
- 25 lb / approximately 11.34 kg
Select the required Athena Pro Core size from the available product options above.
Best Practice
- Use Pro Core alongside the appropriate Athena Pro Grow or Pro Bloom component.
- Measure dry fertiliser accurately by weight.
- Prepare Pro Core as a separate stock concentrate before dosing the working reservoir.
- Do not combine concentrated Pro Core directly with concentrated Pro Grow or Pro Bloom.
- Add each concentrate separately to the working nutrient solution.
- Add dry granules gradually while continuously agitating the stock solution.
- Ensure all material has completely dissolved before dosing.
- Monitor final EC after the nutrient components have been added.
- Adjust nutrient strength according to crop requirements, water quality and irrigation strategy.
- Keep stock tanks, reservoirs, filters and irrigation equipment clean.
Storage
Keep Athena Pro Core tightly sealed and store in a cool, dry location away from direct sunlight and excessive moisture. Keep water and contaminated measuring equipment out of the dry product to prevent clumping or contamination.
Important Information
Athena Pro Core is a concentrated professional horticultural fertiliser designed for use as part of the Athena Pro Line. Application rates should be adjusted according to target EC, water quality, crop requirements and irrigation strategy. Always follow the latest Athena Pro Line feed schedule and product instructions.
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- Tags: Athena, Athena pro line, Base nutrient, Base nutrients, Growth stimulators, Nutrient's & solution's

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