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Water Quality for Pot-in-Pot Nurseriesheadline bar  Pot-in-pot Experimental Plot
Since July 2003 we have established four experimental systems in Northern Ohio to determine:
the amount of water loss in pot-in-pot nurseries due to different levels of drip irrigation and rainfall
the levels of nutrients and pesticide residues in leachate with various irrigation schedules and pesticide application methods
the relationship between the amount of irrigation and medium moisture to tree growth.Each system consists of a plot containing
50 trees in a pot-in-pot system and irrigated with micro spray stakes
10 drainage water measurement devices
10 container substrate moisture probes
10 thermocouples
one weather station
two data loggers.
Schematic diagram of pot-in-pot experimental systemWe are collecting data on
the amount of irrigation
drainage water loss
substrate moisture content and temperature
weather conditions
tree caliper growth
levels of nitrate nitrogen (NO3-N), phosphate (P), and potassium (K) in drainage waterIn addition, we are developing an automatic irrigation control system specifically for pot-in-pot production systems.Studies using this system will impact the nursery industry as it seeks to develop methods to
improve water/nutrient usage
reduce waste water and nutrient use
minimize the release of excess nutrientsFor more information see:
A New System to Monitor Water and Nutrient Use in Pot-in-Pot Nursery Production Systems
PublicationReal-Time Measurement of Drainage from Pot-in-Pot Container Nurseries
PublicationMonitoring Water Use, Nutrient Management, Drainage and Leachate in Pot-in-Pot Nursery Container Production
PublicationMonitoring Water Use, Nutrient Management, Drainage and Leachate in Pot-in-Pot Nursery Container ProductionAdobe pdf document
PosterContact:Heping Zhu


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