Leafy greens are a very broad group pf plants that are harvested and sold before flowering for consumption as leaves. There are literally hundreds of edible greens. Information below provides a general resource of selected greens and general recommendations for greenhouse production of leafy greens for consumption.
Temperature:
Greenhouse herb and vegetable production - Part 3/4 - Greenhouse environment. Buechel, 2017. Grower services newsletter).
Light Conversion and Units:
Photometric, radiometric, and quantum light units of measure: A review of procedures for introconversion (Thimijan and Heins. 1983).
Lighting Needs calculator
Daily Light Integral:
Lighting Up: part 14 (Verberkt, Heins and Blom. 2004).
Saturating DLIs for flowering (Runkle and Blanchard, 2011).
Daily light integral & flowering of annuals (Blanchard and Runkle, 2010).
Supplemental Lighting (Photosynthetic):
Fundamentals of flowering in plants: Supplemental lighting and earliness of flowering (Erwin, Mattson and Warner, 2003).
Saturating DLIs for flowering (Runkle and Blanchard, 2011).
Managing light during propagation (Lopez and Runkle, 2005).
LEDs versus HPS: A reality check (Runkle, Nelosn, Bugbee, 2014).
The basics & beyond: Understanding the differences between photoperiodic and supplemental lighting (Lopez, 2013)
Growing seedlings under LEDs: Part two (Wollaeger and Runkle, 2014)
LEDs:
Control Flowering with LEDs (Meng and Runkle).
Growing seedlings under LEDs: Part two (Wollaeger and Runkle, 2014)
Comparing LED lighting to HPS lamps for plug production (Randall and Lopez, 2013)
LED lighting in Controlled Environment Agriculture: Energy evaluation, measurement and validation. (Outsource In novations, 2016. CRAD Final Report).
Light quality dependent changes in morphology, antioxidant capacity, and volatile production in sweet basil (Ocimum basilicum). Carvalho et al., 2016. Front. in Plant Sci., doi: 10.3389/fpls.2016.01328.
Customizing crop foliage color with LEDs: Red leaf lettuce. (Owen and Lopez, Greenhouse Grower, July, 2015).
Solar:
PV for greenhouse lighting
High Pressure Sodium Lights:
Comparing LED lighting to HPS lamps for plug production (Randall and Lopez, 2013)
Supplemental lighting (Photoperiodic):
Replacing INC with LEDs (Runkle, 2014).
Managing photoperiod in the greenhouse (Currey, Lopez, Runkle, 2013).
The basics & beyond: Understanding the differences between photoperiodic and supplemental lighting (Lopez, 2013)
Cyclic Lighting:
Cyclic long-day lighting (Runkle, 2007).
Boom Lighting (Runkle and Heins, 2015).
Disease Control:
Influence of a surfactant in recirculating systems on plant mortality caused by zoosporic root-infecting pathogens. Stanghellini, AFE Special report #121: Disease Management).
CONTROLLED ENVIRONMENT/GREENHOUSE LEAFY GREENS PRODUCTION
Production System:
Growing produce in a floating system (Melendez, 2013)
Growing hydroponic leafy greens (Mattson, GPN Magazine, October 2016).
Humidity:
Greenhouse humidity control (CropKing, Inc., 2017).
Organic:
Specialty lettuce & greens: organic production (ATTRA, 2002)
Nutrition:
Iron deficiency of hydroponic leafy greens and herbs (Mattson, 1(8): April, 2016).
Disease Management:
Disease Management - Influence of a surfactant in recirculating systems on plant mortality caused by zoosporic root-infecting pathogens. (Stanghellini and Nielson, AFE Special Research Report #121)
Management of Fusarium wilt in lettuce (Gordon and Koike, 2015. Crop Protect., 73:45-49.
Pest Control:
Commercially available biological control agents for common greenhouse insect pests (Wollaeger et la., 2015. Bulletin #3299).
Lettuce:
Specialty lettuce & greens: organic production (ATTRA, 2002)
Tipburn of hydroponic lettuce (Mattson, e-Gro Alert 4(31), April 2015).
Symptoms of common nutrient deficiencies in hydroponic lettuce (Mattson and Merrill, #2015.09. October 2015)
Hydroponic Lettuce Production. (Kaiser and Ernst, 2016. Univ of Kentucky, CCD-CP-63).
Customizing crop foliage color with LEDs: Red leaf lettuce. (Owen and Lopez, Greenhouse Grower, July, 2015).
Spinach:
Hydroponic spinach production handbook. (Brechner and Villiers. Cornell Univ. CEA Program).
Specialty Greens:
Effect of light and temperature on seed germination of selected African leafy vegetables. (Motysa et al., 2015. South Afr. J. Bot., 99:29-35.
CONTROLLED ENVIRONMENT/GREENHOUSE MICROGREEN/SPROUT PRODUCTION
Microgreens:
Microgreens (Kaiser and Ernest, 2012. Univ. of Kentucky).
Sprouts:
Sprouts (Univ. of Kentucky, 2012)
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