Equipment

NFT System: Nutrient Film Technique for cannabis

NFT enables continuous nutrient supply with minimal water consumption. Structure and optimisation for cannabis cultivation.

Nutrient Film Technique (NFT) is an efficient hydroponic approach:

NFT operating principle:

Thin nutrient film flows continuously over roots. Upper root area remains airy, lower root area in nutrient solution.

NFT system structure: Growth channels:
  • PVC pipes or special NFT channels
  • 3-6 inch diameter
  • 2-4% slope for flow
  • Holes for net pots
Pump system:
  • Small, continuously running pump
  • Timer for interval operation possible
  • Backflow system to the reservoir
  • Backup pump recommended
Reservoir and control unit:
  • 50-100 litres depending on the number of plants
  • Level control important
  • Aeration of the reservoir
  • Temperature management
NFT advantages:
  • Minimised water consumption
  • Continuous nutrient supply
  • Good oxygen supply
  • Space-saving and scalable
NFT disadvantages:
  • Pump failure = rapid plant death
  • Clogging possible
  • Less forgiving
  • Experience required
System optimisation: Flow rate:
  • 1-2 litres per minute per channel
  • Even distribution
  • No waterlogging or dryness
  • Adjustment according to plant size
Channel design:
  • Slight gradient (1:50)
  • No sharp bends
  • Easy cleaning possible
  • Accessible for maintenance
Root management:
  • Avoid overgrowth
  • Regular inspection
  • Do not block channels
  • Prune when necessary
Nutrient programmes:
  • Lower EC than other hydro systems
  • Continuous low fertilisation
  • More frequent adjustments
  • Precise pH control

NFT is ideal for experienced growers looking for maximum efficiency and control.

Frequently Asked Questions

What is an NFT system in cannabis cultivation?

An NFT (Nutrient Film Technique) system is a hydroponic cultivation method in which a thin layer of nutrient solution continuously flows over the roots of the plants to ensure an optimal supply of nutrients.

What advantages does the NFT system offer for cannabis cultivation?

The NFT system enables efficient nutrient uptake, reduces water consumption, and promotes rapid plant growth through constant access to oxygen and nutrients.

How can I best set up an NFT system for cannabis?

To set up an NFT system optimally, you should ensure that the channels are properly sloped, that the pump supply is constant, and that nutrient concentration and pH levels are monitored regularly.

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