Organic fertilization for greenhouse crops
Greenhouse crops are the most intensive in the horticultural sector. Organic fertilization in greenhouses must adapt to the controlled conditions of protected crops: high planting density, continuous fertigation and the need for 100% soluble solutions without risk of dripper clogging. Ecoganic products, 100% cold-soluble, are ideal for these systems.
Recommended products for greenhouse
Organic fertilizers certified CE 2018/848 + NOP USDA. 100% soluble for fertigation.
NITROTECH 2.5
100% soluble liquid organic nitrogen for drip fertigation. No clogging risk. Especially indicated for long-cycle tomato, pepper and cucumber.
NPK 2.5-0-0 · 1 L, 5 L, 10 L
PHOSMAX 20
Assimilable phosphorus to stimulate rapid rooting after transplanting. Especially important in high-density greenhouse crops.
NPK 0-20-0 · 1 L, 5 L, 10 L
CALCIUM 40
Micronized calcium <1μm to prevent blossom-end rot, tipburn in lettuce and cracking in tomato. Especially critical under high greenhouse temperatures.
NPK 0-0-0+Ca · 1 L, 5 L, 10 L
K-FLOW 20
High-purity potassium for fruit bulking in pepper, tomato, cucumber and other vegetables. Improves size, color and soluble solids (BRIX).
NPK 0-0-20 · 10 L, 20 L, 1000 L
BOOST UNIVERSAL
Unicellular algae biostimulant to improve stress response in greenhouses: temperature, irrigation water salinity, light changes.
NPK 0-0-1 · 1 L, 5 L, 10 L
MICRO PLUS 1-0-0
Chelated organic micronutrients to prevent and correct common greenhouse deficiencies: iron, manganese, zinc and boron.
NPK 1-0-0 · 1 L, 5 L, 10 L
The programme, product by product
These must not share a tank (4)
- PHOSMAX 20 + CALCIUM 40
- PHOSMAX 20 + K-FLOW 20
- CALCIUM 40 + MICRO PLUS 1-0-0
- K-FLOW 20 + MICRO PLUS 1-0-0
Chloride measured by ion chromatography to UNE-EN 10304-1 at an ENAC-accredited laboratory. Mixing verdicts are derived from each product's composition and pH, not from a compatibility trial: always run the jar test with your own field water before loading.
See the full compatibility table →FAQs about greenhouse fertilization
Are Ecoganic products compatible with drip fertigation systems?
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Yes. All Ecoganic products are 100% soluble in cold water and free of impurities that could clog drippers or filters. Liquid formats (NITROTECH 2.5, CALCIUM 40, K-FLOW 20) are injected directly into the fertigation tank. Soluble solid formats are pre-dissolved in water before being incorporated into the system.
What is the difference between fertilizing in a greenhouse vs outdoors?
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In greenhouses, crops depend entirely on fertigation for their nutrition since the soil has reduced buffering capacity. This requires products of high solubility and purity that do not salinize the soil. Ecoganic products, with controlled electrical conductivity and laboratory-measured chloride, are specially formulated for these systems.
Can calcium and nitrogen be used in the same application?
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With most conventional mineral fertilisers, calcium and nitrogen cannot be mixed (they form precipitates). With Ecoganic products the risk is lower because they are organic in origin, but it does not disappear: our compatibility matrix classifies CALCIUM 40 with NITROTECH as «caution», not as incompatible, and states the fill order. Before loading the tank, run the jar test with the water from your own holding.
Verified field trial