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3CTEC - Cultivating your success

Sectors

Every crop has its own constraints

A substrate strawberry house and an ornamental plant house share neither the same climate, nor the same irrigation regime, nor the same measurement needs. Here is how we adapt installations to what you actually grow.

Protected vegetable growing

Tomato, cucumber, pepper, lettuce

Long cycles under cover mean holding a stable climate for months while the plant's needs change week by week. This is the sector where control pays for itself fastest: humidity management decides as much of the yield as heating does, and a badly set point shows up as disease before it shows up on the bill.

What that demands of the installation

  • Heating able to hold a low setpoint smoothly, rather than high output badly distributed
  • Controlled dehumidification: it is humidity, not cold, that opens the door to botrytis
  • Fertigation that follows the crop stage, with drainage recovery and recycling
  • Reliable sensors: over a ten-month cycle, two degrees of drift costs a season of heating

Technical fields involved

Strawberries and soft fruit

Substrate growing on gutters

Substrate production concentrates the difficulty on water: the substrate holds very little, so the slightest irregularity in supply shows in fruit size and in the evenness of the harvest. As Lot-et-Garonne is a production region, this is also the sector where the quality of an installation gets compared between holdings very quickly.

What that demands of the installation

  • High dripper uniformity: a shortfall at the end of a row reads directly in fruit size
  • Accurate dosing, verifiable with an independent pH and conductivity reading
  • Management of the gutters and of drainage recovery
  • Protection against spring frost, which decides how early you can pick

Technical fields involved

Horticulture and ornamentals

Flowers, pot plants, mixed production

The difficulty is not the performance of a single compartment, it is running several species with different requirements under one roof, with batches following one another. The installation therefore has to be partitioned and finely controllable, otherwise you set for the average and nobody is properly served.

What that demands of the installation

  • Partitioning into compartments that are genuinely independent in climate terms
  • Shading and thermal screens controlled separately according to the batch
  • Watering by bench or by zone, not for the whole greenhouse at once
  • Supervision that keeps the history: repeating a successful batch means knowing how it was run

Technical fields involved

Nurseries and young plants

Sowing, propagation, grafted plants

On small, very high-value areas, uniformity outweighs everything else: an uneven batch cannot be recovered. Temperature and humidity tolerances are tighter here than anywhere else, and an undetected failure is counted in lost batches, not in days of delay.

What that demands of the installation

  • Fine control, with tight tolerances on temperature and humidity
  • Misting and close management of humidity
  • Alarms and remote supervision: a night-time failure has to wake somebody up
  • Regular sensor calibration, checked against a reference instrument

Technical fields involved

Research and trial centres

Trial and research stations

In a trial station, the greenhouse becomes a measuring instrument: treatments are compared side by side, and a difference in climate or irrigation between two compartments is enough to skew a trial. For several years we have been equipping and maintaining greenhouses at research and trial centres in Nouvelle-Aquitaine, where repeatable, traceable conditions matter as much as the crop itself.

What that demands of the installation

  • Identical, independent compartments, each controlled with its own set points
  • Irrigation and fertigation per trial treatment, with verifiable dosing
  • Dense, calibrated instrumentation whose accuracy can be demonstrated
  • A complete data history, exportable for trial analysis

Technical fields involved

Also, outside the greenhouse

Greenhouses are our trade. We do however work in the open field on irrigation and electrical systems, where the need fits.

Orchards

Plums, stone fruit and pome fruit

In the open field the difficulty shifts: there is no climate to hold, but there are network lengths and level differences that lose pressure exactly where nobody measures it. Orchard irrigation is judged on its evenness from one end of the plot to the other, and on getting through a week of heatwave without having to choose between two blocks.

Vineyards

Measured irrigation and protection

Vines need little water, but they need it at the right moment: supply is driven by the growth stage, and excess costs in quality what it adds in volume. The constraint is therefore not flow rate, it is the precision of the regime and the traceability of what was actually applied.

Let's talk about your crop

Area, species, existing installation: with those three things we can already tell you what is possible.

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