GHF CalMag - Water-Soluble Fertilizer - 2.5Kg

GHF CalMag is a high-quality water-soluble fertilizer packed with nitrogen (13.5%), calcium (16.7%), and magnesium (6.0%). Its high solubility ensures rapid nutrient uptake, making it perfect for hydroponics, fertigation, and foliar feeding. It promotes healthy growth, strong flowers, and superior fruit quality, correcting nutrient deficiencies or supporting ongoing plant nutrition. Free from chlorine, sodium, and heavy metals, it�s a clean and efficient solution.

Composition

• Total Nitrogen (N): 13.5% (13.1% nitrate, 0.4% ammonium)


• Calcium Oxide (CaO): 16.7% water-soluble


• Magnesium Oxide (MgO): 6.0% water-soluble


• EC (1g/L): 1.2 mS/cm

How to Use

Dissolve the product in water and use an EC meter for precise fertilization. Compatible with GHF Hybrids, Short Flowering, Long Flowering, and Booster. Do not mix with other calcium additives.

• General Dosage: 0.1-0.5 g/L of water


• Soft Water (reverse osmosis/rain): 0.5 g/L (0.6 EC)


• Hard Water/rich soil: 0.2 g/L, 1-2 times per week (not mandatory)


• Foliar Application: 0.2 g/L every 10 days (only for calcium/magnesium deficiencies)


• Note: From week 6, you can switch to GHF Calcium Chelate to provide calcium without nitrogen.


• Stock Solution: 10-15 kg/100 L of water for dosing systems (e.g., Dosatron/Netafim).