Controlled Environment Agriculture

Spinach

CEA research into a hydroponically grown spinach product began in the mid 1990's. Initially the spinach was grown to full-size (5 oz in 33 days), but a water-borne spinach pathogen (Pythium aphanidermatum) and a general trend in consumer preference led to the current work in 'baby-leaf' spinach production. You can find production methods for both full-size and baby-leaf spinach in the tabs to the left. We currently recommend the commercial production of baby-leaf fourteen day old spinach at a plant density of 1500 plants per square meter. This short crop cycle must be combined with temperature control of the nutrient solution to avoid crop loss due to the above-mentioned pathogen.