Watering Systems
description
Transcript of Watering Systems
Greenhouse Management
3 Basic TypesSub-IrrigationOverhead IrrigationDrip Irrigation
Capillary MattingNon-woven fibersRe-usableStores water & nutrientsIndoor or outdoor useSoluble salt issues
Capillary Matting
IHP Capillary Matting (clean)
IHP Capillary Matting
covered with P17 tissue
Removing P17 tissue
Capillary MattingA distribution
system is used to wet the mat
Ebb & Flow (Flood) BenchesPots placed in trayTrays are floodedExcess fertilizer
solution drains back into reservoir
Soluble salt issues
Econojet 4x4 Ebb & Flow Bench
Ebb & Flow (Flood) Benches
Ebb & Flow Benches at DeJongs, Pella, IA
Flood Floor IrrigationPlants grown on the
floorFloor is flooded with
a fertilizer solutionPlants absorb water
and nutrientsUnused fertilizer
solution is recycledSoluble salt issues
Flood Floor Irrigation at Willoway Nurseries
Flood Floor Irrigation at DeJongs
Hand WateringStill the preferred
method of many growers
Never as easy as it looks
Difficult to apply water uniformly
Problems with wet foliage
Plastic Water CollectorsMade from re-
cycled plasticPot sits on
collectorCollector directs
water back towards pot
Overhead Boom IrrigationComputer controlledPrecise applicationInterchangeable
nozzlesCan be programmed
on a per crop basisCapability of
applying fertilizers and pesticides
Wet foliage
Fixed Overhead Irrigation SystemsMany styles and
manufacturers to choose from
Nozzles interchangeableNozzle output measured in
GPM at a specified pressure
Nifty Nozzle Flow Rate in Gallons Per MinuteITEM COLOR SIZE 15
PSI22 PSI 29 PSI 36 PSI
360NN-BR Brown 1.75 mm
0.29 0.35 0.41 0.46
360NN-GN Green 2.00 mm
0.40 0.49 0.57 0.63
360NN-GR Grey 2.25 mm
0.51 0.62 0.72 0.80
360NN-BL Blue 2.50 mm
0.63 0.77 0.89 0.99
360NN-RD Red 2.75 mm
0.76 0.93 1.07 1.20
360NN-OR Orange 3.00 mm
0.90 1.10 1.28 1.43
Dramm JetRain Nozzles
ECHO SystemFor hanging basketsBaskets hang from
hooks on a cable system
Irrigating nozzles remain in a fixed position
Baskets are brought to the nozzles
ECHO System
Spaghetti Tubes with EmitterSupply line with
“punched in” spaghetti tubes
Fertilizer solution applied to the surface of the growing medium
Foliage remains dry