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Economic Analysis Of Greenhouse Lighting: Light Emitting Diodes Vs. Intensity Discharge Fixtures, Jacob A. Nelson, Bruce Bugbee
Economic Analysis Of Greenhouse Lighting: Light Emitting Diodes Vs. Intensity Discharge Fixtures, Jacob A. Nelson, Bruce Bugbee
Plants, Soils, and Climate Faculty Publications
Lighting technologies for plant growth are improving rapidly, providing numerous options for supplemental lighting in greenhouses. Here we report the photosynthetic (400-700 nm) photon efficiency and photon distribution pattern of two double-ended HPS fixtures, five mogul-base HPS fixtures, ten LED fixtures, three ceramic metal halide fixtures, and two fluorescent fixtures. The two most efficient LED and the two most efficient double-ended HPS fixtures had nearly identical efficiencies at 1.66 to 1.70 micromoles per joule. These four fixtures represent a dramatic improvement over the 1.02 micromoles per joule efficiency of the mogul-base HPS fixtures that are in common use. The best …
Virginia Working Waterfronts Workshop A Sense Of The Symposium, Ryck Lydecker, Thomas J. Murray
Virginia Working Waterfronts Workshop A Sense Of The Symposium, Ryck Lydecker, Thomas J. Murray
Reports
No abstract provided.
Coastal And Ocean Economic Summaries Of The Coastal States 2014, Pat Johnston
Coastal And Ocean Economic Summaries Of The Coastal States 2014, Pat Johnston
Publications
The following summaries of the ocean and coastal economies were prepared by the National Ocean Economics Program as a companion the State of the U.S. Ocean and Coastal Economies 2014. The U.S. report, its appendices, and these state summary reports are available on the NOEP website at www.OceanEconomics.org/download.
A Pilot Project For Assessing The Socioeconomic Issues Facing Maryland’S Working Waterfront – Year 2, Thomas J. Murray
A Pilot Project For Assessing The Socioeconomic Issues Facing Maryland’S Working Waterfront – Year 2, Thomas J. Murray
Reports
No abstract provided.