Growing system
Hydroponic NFT vs Substrate Growing Systems
NFT suits fast, light, short-cycle crops with continuous flow. Substrate suits heavy fruiting crops that need root buffering and precise irrigation control. The choice drives crop range, risk profile and consumables.
Direct answer
Can both systems run in one greenhouse?
Yes, and it is common. Splitting a house into an NFT zone for leafy crops and a substrate zone for fruiting crops is straightforward if the irrigation head station is specified for two independent dosing circuits from day one.
| Dimension | NFT / gully systems | Substrate (coir, rockwool, perlite) |
|---|---|---|
| CAPEX per hectare | USD 180K–350K (gullies, tanks, dosing) | USD 120K–280K (gutters/slabs, dripline, dosing) |
| Annual consumables | Low — nutrient solution only | Coir/rockwool replacement USD 25K–60K/ha per cycle |
| Crop fit | Leafy greens, herbs, strawberries (short cycle, light) | Tomato, pepper, cucumber, berries (heavy, long cycle) |
| Root-zone buffer | Almost none — pump failure damages the crop in hours | Hours to a day of buffer in the slab |
| Water use | Lowest — fully recirculating | Low with drain recirculation; 15–30% drain typical |
| Disease spread | Pathogens travel through the shared flow | Slab-level isolation limits spread |
| Labour model | Highly repeatable, automation-friendly harvesting | Crop-work intensive (trellising, pruning) |
| Backup requirement | UPS/generator on circulation pumps is mandatory | Generator recommended, not existential |
Cost delta at a glance
- •NFT typically costs USD 40K–90K/ha more in fixed equipment but avoids USD 25K–60K/ha per cycle in substrate.
- •Payback on that difference is usually 2–4 crop cycles, provided the crop is genuinely NFT-suited.
- •Add USD 15K–40K/ha for UPS and generator capacity if you select NFT — do not treat it as optional.
Planning-grade ranges for budgeting only. Actual pricing depends on site, specification, climate and supplier scope.
Choose NFT / gully systems when
- Leafy, herb and short-cycle production at scale
- Sites where substrate disposal or import is costly or regulated
- Operations targeting high automation and standardised harvesting
Choose Substrate (coir, rockwool, perlite) when
- Fruiting vegetable and berry production
- Sites with unreliable power where root-zone buffering reduces risk
- Growers who want proven agronomy support from substrate suppliers
Frequently asked questions
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