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Application Efficiency Studies
Application Water Loss - This study compared application water losses among four common sprinkler packages: high-pressure impacts; low-angle inpacts; sprays on top; sprays on drops.
Sprinkler Over-Pressurization - This study measured water losses from spray drift and over-application resulting from operating sprays nozzles on the boom at pressures that were higher than design.
Irrigation Scheduling
2002-2007 Irrigation Scheduling - Newton linear. A multi-objective study explored options for triggering irrigation of corn, peanut, and cotton based upon various sensors and models
2005-2007 Water savings with conservation tillage - Newton linear. A multi-objective study explored options for triggering irrigation of corn, peanut, and cotton based upon various sensors and models
Crop and Varietal Responses to Water Stress
Sensors and Communication in Irrigation
2002-2004 Pivotrac ® Pivot Monitors - Highway Pivots. Devices to monitor status of power supply, pivot movement, and water pressure through analog cell phone carrier signals to internet and mobile beepers.
2006-2007 Reinke OnTrac ® Pivot Monitor - Reinke Pivots. Device to monitor status of power supply, pivot movement, and water pressure through analog cell phone carrier signals to internet and mobile beepers.
2006-2007 Advanced Irrigation Controls (AIC)® - Highway Pivots. Devices to remotely monitor pivot operating pressures, flow rates, as well as function. This SCADA allows automated and remote control of center pivots and supply pumps through an Internet interface.
2001-2004 Environmental Sensors Inc. (ESI)® - Highway Pivots, VRI Pivot, wells. Devices to remotely monitor pivot operating pressures, flow rates, as well as well water table. Some capability for remote control of center pivots through the computer interface.
2001-2007 Adcon Inc. ® and Vanco, Inc. - VRI Pivot, Newton and Camilla linears, field plots, weather stations. Radio transceivers, interfaces, and sensors for near continuous & real-time monitoring of soil water pressure, soil content, and temperatures, as well as meteorological data. Data sent via licensed frequency and Internet to local computers and Internet sites.
2008 Adcon Inc. ® and Earthtec, Inc. - Lang linear, Newton linears, field plots, weather stations. Radio transceivers, interfaces, and sensors for near continuous & real-time monitoring of soil water pressure, soil water content, and soil temperature, as well as meteorological data. Data sent via licensed frequency and Internet to addVANTAGE Pro 5.4 &ropy; host site. Earthtec is an Adcon equipment supplier in the Eastern US.
2008 Wireless Field CoverageWiFi 802.11b and long haul coverage was added to cover about 70 % of the SIRP farm. The wireless umbrella provides connectivity to scientists during certain field operations. More importantly it provides a test-bed for WiFi enabled devices. The first of these set up on the farm were wireless cameras.
2008 FarmLincTM .FarmLinc provides web-based hosting of soil water, soil temperature, and meteorological monitoring information, as well as irrigation advisory and other services. In our implementation, Irrometer ® radios and sensors are located in Newton peanut field are being relayed to and hosted on a 900MHz broadband radio link to the internet. Sensors are monitoring soil water pressure in an irrigation scheduling study examining differences in conservation and conventionally tilled peanut.
2008 AquaSpy, Inc. and MonsantoAquaSpy provides web-based hosting of soil water, soil temperature, and meteorological monitoring information, as well as irrigation advisory and other services. In our implementation, capacitance type soil water probes are monitoring soil water content in cotton research plots. The communication link is via cell phone to the internet. Probes and radios in this study are provided courtesy of the research partner Monsanto.
Water and Pest Interactions
2002-2004 Harvest and Quality Losses for Irrigated Corn - Highway Pivots - Impacts of delayed harvests on yield and grain quality of corn irrigated at three levels: 66, 100, and 125% of estimated ET needs.
Irrigation Economics
Downloadable Documents
Variable Rate Irrigation - Whitacre poster
Remote Sensing for Irrigation - Ritchie poster
AWP Monthly Irrigation Depths - All crops
Surface Water Withdrawals for Irrigation - All crops
Groundwater Withdrawals for Irrigation - All crops
Typical & Drought Year Irrigation in Southwest Georgia
Watershed Fact Sheet 1
Watershed Fact Sheet 2
Watershed Fact Sheet 3
Variable Rate Irrigation
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