How to use autopot with Greenhouse Feeding mineral line
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How to use autopot with Green House Feeding Bioline !
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How to use autopot with Greenhouse Feeding mineral line
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How to use autopot with Greenhouse Feeding mineral line
11/21/2025
Posted in:
Autopot system: how to use !
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How to use autopot with Greenhouse Feeding mineral line
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How to use autopot with Green House Feeding Bioline !
11/21/2025
Posted in:
Autopot system: how to use !
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Autopot + GHF Bioline
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Soil cultivation (peat based substrate)
11/20/2025
Posted in:
BIO NUTRIENTS
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Information on soil cultivation (peat based)
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Calcium content in water
11/19/2025
Posted in:
Tap water and calcium content
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Calcium content in water sources
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GHF Calmag

GHF Calmag is a water-soluble fertilizer in flake form containing nitrogen (13.5%), calcium
(16.7%), and magnesium (6.0%). Its high solubility allows for quick nutrient availability to
plants. It is ideal for foliar feeding, hydroponics, and fertigation, promoting healthy growth,
strong flowers, and improved fruit quality. GHF Calmag is free from chlorine, sodium, and
heavy metals, making it a clean and efficient nutrient solution for correcting deficiencies or
supporting ongoing plant nutrition.
Composition GHF Cal-mag (EC Fertilizer)
Total nitrogen N 13.5
– nitrate nitrogen N-NO3 13.1
– ammonium nitrogen N-NH4 0.4
Calcium oxide CaO 16.7 soluble in water
Magnesium oxide MgO 6.0 soluble in water
EC (1g/l) 1.2mS/cm (1,2EC)
How to use:
Dissolve the product in the water. Use an EC meter to ensure precise fertilisation. Use in
combination of Hybrids, Short Flowering and Long Flowering.
Don’t mix it with other Calcium additive.
Dosage: Form 0,1 to 0,5gr /L of water*
* In case of soft water (Reverse osmosis/rain water) add 0,5grm/L (0,6EC)
* In case of hard water / rich soil apply 1 to 2 times per week 0,2grm/L (not mandatory).
* For foliaire application, every 10 days apply 0,2grm/L (only in case of
calcium/magnesium deficiency)
* It is possible to stop Cal -mag on week 6 and to add the GHF Calcium chelate additive in
order to stop adding N and still supply calcium until the end.
* Don’t mix it with GHF Calcium chelate.
* Stock solution can be prepared for dosing system like Dosatron/Netafim/etc …
* GHF Cal -mag can be used as a stand alone product with other brands.

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