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System Design


This can be part of a quote for a multifunctional upgrade or it can be a standalone design.  Contact us for more information on the following which can apply depending on circumstances:

•  A charge is made for a specifically commissioned design and supply of drawings

• Sometimes a charge is made for design but this amount is credited in the event of all or part of a quotation being accepted


Misting or fogging has several applications
•    Propagation.  This normally related to keeping humidity levels up and depending on the crop, keep foliage moist so the ‘cutting or Tissue Culture’ can be kept turgid while the root development occurs.  Misting is normally used in conjunction with bottom heat.

Grower Technology design propagation areas that incorporate overhead misting, bottom heat from heat pads, heating cable or hot water piping in conjunction with climate control for the propagation room/area.

•  Cooling of Greenhouse.  Fine droplets are used to populate as much of the greenhouse volume as possible.  The hot conditions evaporate the droplets creating a cooling effect by evaporative cooling.  By careful control of burst time and interval then largely the coir only is cooled and minimal moisture sits on the foliage.  When moisture on the foliage is desired (e.g. cuttings, propagation) the burst time is longer.

This evaporative cooling does not work in high humidity tropical climates.

Normally Netafim ‘Coolnet’ misters are utilised in cooling designs but high pressure fogging can also be used.

•  Centrifugal Misting Fans.  Another cooling option is centrifugal Misting Fans.  Misting for cooling is best controlled by an Autofog controller or a Multigrow that will work in sync with integrated climate controls (e.g. with vents, shade screens, circulation fans etc.

•  Humidification of Greenhouse.  Goes hand in hand with cooling as above, and ideal targets for humidity and Temperature are aimed for.   When it’s too hot and dry plants natural mechanism is to ‘shut down’ thus inhibiting growth.  By lifting the humidity even 10% and lowering the temperature 3 or 4 degrees then plant growth will be healthier and stronger.  This results in better growth, better yields, less disease and more profitability.

•  Pad & Fan.  In dry hot regions then ‘Pad & Fan’ cooling
In dry hot regions then ‘Pad & Fan cooling is the best method of Greenhouse cooling in conjunction with shading.  This is best controlled by the ‘Multigrow’.

When set points are breached banks of extractor fans pull air across the greenhouse.  The entry point is pads where water is run into the pads.  This runs down and through a multifaceted membrane, and as louvers open to the outside the air is sucked through the membrane pads cooling and humidifying the dry air creating a cool environment.


Hydroponic Design

Nutrient Film Technology (NFT) is used in temperate climates (like New Zealand) to produce fancy lettuce, leafy herbs and leafy greens.

At Grower Technology we have designed, supplied, installed very successful systems in New Zealand and overseas.
•  Full design option available
• Design and supply option (design costs credited) on the basis of purchasing controllers and hardware required (e.g. Hydroponic Gully, Drain Manifolds, Feed Assemblies, Venturi, Plumbing Connections etc.

Irrigation Design

Whatever the growing system, Grower Technology can design you an irrigation system with or without fertigation.

By adding small increments of technology and automation you can get  significant efficiencies and savings:
•    For nursery, cut flower, forestry, or vegetable production
•    Glasshouse, plastic house, tunnel house, shade house or open field.
•    Drippers, sprinklers or a combination using computer software for optimal coverage and uniformity.
•    Rang of Controllers available including those with PC and/or internet connectivity.
•    Improve irrigation patterns with a Solar Integrator
•    Fertigation options with Multigrow, Nutridose 1, or Mixrite proportional dosers.