A question many growers are asking is whether vertical farming of hydroponic lettuce production is profitable. Light requirement (daily light integral, DLI) of lettuce can vary from 15-20 mol/m2/day. Lettuce grown under low DLI has slow growth rate (i.e., takes longer to harvest) and appear poor in quality (elongated). Current estimate is that energy costs…Read more about Energy efficient lighting strategies[Read More]
Hydroponic lettuce is usually grown by continuously recycling the nutrient solution during production. As nutrients are absorbed by plant roots, stock solution is added to the recycled solution to maintain the electrical conductivity (EC) at a target level. Because plants absorb nutrients from the solution at different rates, the recycled solutions accumulates elements which are…Read more about Nutrient management for hydroponic lettuce using imaging[Read More]
Hydroponics Workshop II Greenhouse and Indoor based hydroponics for growing green leaf produce is rapidly growing near urban areas in Indiana. To bridge the gap in learning and increase the competitiveness of Indiana and Midwestern growers, Purdue Extension specialists and researchers in the department of Horticulture and Landscape Architecture have developed workshops that provide experiential…Read more about Hydroponic Lettuce Workshop II at Purdue[Read More]
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