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Julián Miralles-Crespo and Marc W. van Iersel

precise irrigation scheduling in uniform nursery container mixes ( Shock and Wang, 2011 ). Jones (2007) concluded that soil θ is the most valuable environmental or plant variable for irrigation control, allowing for easy automation. Automating irrigation

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William D. Wheeler, Paul Thomas, Marc van Iersel and Matthew Chappell

). Automated irrigation through precision soil moisture sensing has been shown to be an efficient means of regulating irrigation application ( Lea-Cox et al., 2013 ; Majsztrik et al., 2013 ). Although a number of different soil moisture sensors exist

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Amanda Bayer, John Ruter and Marc W. van Iersel

currently limited ( Warsaw et al., 2009 ). Understanding how plant growth is affected by maintenance of different θ thresholds will allow for species-specific guidelines. Automated irrigation using capacitance sensors to maintain θ thresholds can be used to

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Pascal Nzokou, Nicholas J. Gooch and Bert M. Cregg

( Young and Sisson, 2002 ). Using an automated irrigation system controlled by three different soil tension thresholds resulted in more efficient water use, reductions in pollution runoff, and increase in growth of ‘Kardinal’ rose ( Rosa × hybrida

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Jeff B. Million and Thomas H. Yeager

irrigation practice on irrigation water use at a wholesale container nursery. An automated irrigation schedule based on routine leaching fraction testing and weather (CIRRIG) was compared with the nursery’s traditional irrigation practice (TIP) in side

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Joel Felix, Clinton C. Shock, Joey Ishida, Erik B.G. Feibert and Lamont D. Saunders

Shock et al. (2000) . The irrigation water was supplied by a well that maintained a continuous and constant water supply pressure of 241 kPa. The pressure in the drip lines was maintained at 69 kPa by pressure regulators in each main plot. The automated

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Yong Ha Rhie, Seonghwan Kang and Jongyun Kim

sensor systems allowing for real-time monitoring and thresholds for triggering irrigation can easily be adjusted to meet changing water demand or environmental conditions. The use of automated irrigation with soil moisture sensors to monitor and control

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Amanda Bayer, Imran Mahbub, Matthew Chappell, John Ruter and Marc W. van Iersel

’ maintained at various substrate θ levels using soil moisture sensor-controlled, automated irrigation. The objectives of this project were 1) to quantify the water use of Hibiscus acetosella ‘Panama Red’ in both a controlled greenhouse setting and outdoor

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D.M. Glen

This work focuses on recent developments and examples of irrigation scheduling that concern where in the root system and when in the plant's phenology water should be applied. Information is provided on using and measuring soil variability to help schedule irrigation. An irrigation model is described that emphasizes the soil water-holding capacity and root distribution in designing irrigation systems and scheduling water application. Recent research is reviewed on the subject of fruit crops that can tolerate severe water stress during specific growth periods of the fruit. Finally, a method of using infrared thermometers and canopy temperature data in cloudy, humid regions is presented that has the potential to extend the use of this technology.

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Zheng Wang, Mark Williams, Krista Jacobsen and Timothy Coolong

for 3 weeks after planting in 2011 and 2 weeks after planting in 2012 to ensure an even plant stand. After establishment, irrigation regimes were implemented using an automated irrigation system ( Coolong et al., 2013 ). In brief, irrigation timers