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A-Rest aerated steam amount bench boiler Btu/hr bulb burner Calcium Nitrate calculated capillary cement board cold concrete condensation containers cooling Cornell Cornell University cubic determine drainage ebb and flo efficiency electric equipment evaporative Evaporative Cooling example greenhouse exhaust fan feet fertilizer salts Figure floricultural fluorescent lamps foot-candles frame ft-c fuel gallons glass greenhouse greenhouse manager greenhouse operations growers heat loss heat of respiration HID lamp hour inches inside installation irrigation Langhans liquid material measured medium meter methyl bromide mixing Nela Park nozzles overhead costs overhead irrigation pad and fan pasteurization pesticides pipe plastic polyethylene pot mum pounds pressure problem pump reduce refrigeration removed sash bars sheet soil soluble spacing spray square foot storage structure subirrigation surface Table thermostat tube unit University of Kentucky usually valve vent ventilation vermiculite wall watering system wind wood