cutting edge irrigation
DESCRIPTION
Or what do faculty members do when they are not in the classroom…. Cutting Edge Irrigation. Irrigation Controller. Production areas. Sensors. Valves. Wireless Communication Network. Decision Support System. Farm Zoning Module. Irrigation Scheduler. What is a Wireless Sensor Network?. - PowerPoint PPT PresentationTRANSCRIPT
Or what do faculty members do when they are not in the classroom….
What is a Wireless Sensor Network?
Production areasIrrigation Controller
Sensors Valves
WirelessCommunicationNetwork
Local Computer
Grower Input
IrrigationScheduler
FarmZoningModule
Crop Response Model
Crop Database
Decision Support System
Remote Computeror Smartphone
What is a Wireless Sensor Network?
• Hardware • Sensors• Nodes• Valves
• Software• Data visualization• Decision making
nR5
• Water savings
• Disease management
• Plant growth
• Height control
• Statham, GA
• Perennial Grower• Small container size
• Quick production cycles
• Tremendous diversity of crops
• Information-addict
nR5 node at Evergreen
Water Use StudyA problem crop… 2010-11
Results:• Water Savings: None
•(0.5% difference, July 28 - Dec 7, 2011)
• Crop health: Excellent•Sold 15% more plants than expected
• Finish time: Spring instead of Fall 2011
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Forecast sales
Crop Sales
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Forecast salesActual sales
Crop Sales
23,400 plants
New Crop - 2012
Ready Sept. 2012
4 month production
cycle
Is it real?
12
Profitability of Wireless Sensor Networks
Potential benefits found include:
• Water/energy/labor savings
• Reduced losses
• Reduced management time
• Accelerated production time
Analysis by Erik Lichtenberg, Univ. of Maryland
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Forecast salesActual sales
Crop Sales
23,400 plants
New Crop - 2012
No Sensors
Sensor-Based
Irrigation
Annualized Revenue
$66,297.36 $
145,505.64
Annualized Production Costs
$30,539.11 $50,039.93
Annualized Sensor System Cost $ 0.00 $3,755.24
Annualized Profit
$35,758.24 $91,710.47 Annualized Profit per Square Foot $1.79 $ 4.59
Percent Change from Base Case +156%
The system payback was less than one month!
No Sensors
Sensor-Based
Irrigation
Fertilizer rates 3,000 lbs/acre $1,500 lbs/acre
Bags of CRF/year/acre 60 30
Cost per bag $80 $80
Annual fertilizer costs $4,800/acre $2,400/acre
•Production of poinsettias; intensive use of growth regulators (PGR)
•Potential of controlled drought to control height
Days after pinching
0 20 40 60 80
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ght (
cm)
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Days after pinching
0 20 40 60 80
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55Control
Days after pinching
0 20 40 60 80
Hei
ght (
cm)
15
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55Control Drench Spray
Days after pinching
0 20 40 60 80
Hei
ght (
cm)
15
20
25
30
35
40
45
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55Control Drench Spray Water deficit
35.6 cm 39.4 cm 43.2 cm control
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