Search Results

You are looking at 1 - 10 of 745 items for :

  • greenhouse lighting x
Clear All

supplemental photosynthetic light to sustain steady supplies of high-quality produce during the off-season. Most greenhouse growers who use supplemental lighting rely on overhead high-pressure sodium lamps because of their capability to deliver adequate

Full access

adequately maintained ( Smith, 1982 ). Ohashi-Kaneko et al. (2007 ) state that artificial lighting permits stable vegetable crop production no matter the environmental conditions (with a favorable temperature in the greenhouse). Greenhouses in northern

Free access

Supplemental lighting is often used to improve the growth and yield of greenhouse vegetables. However, the electricity required for supplemental lighting can account for as much as 30% of the recurring cost of operating a greenhouse ( van Iersel and

Open Access

farm gate value of $700,000/ha for vegetable greenhouses ( U.S. Department of Agriculture National Agricultural Statistics Service, 2014 ). Clearly, more efficient supplemental lighting will have a major impact on the sustainability and profitability of

Free access

Supplemental lighting can improve the profitability of greenhouse crop production, and a better quantitative understanding of plant responses to PPFD can facilitate the development of more efficient crop-specific control strategies for greenhouse

Free access

for replications 2 and 3 to improve germination uniformity. For each cultivar, six 128-cell trays were cut in half and the 12 half trays were randomly assigned to six lighting treatments in adjacent greenhouse sections. Seedling trays of each cultivar

Free access

intensities. Supplemental lighting in greenhouses and high tunnels often include light-emitting diodes (LEDs) as a means of extending daylength and increasing seasonal strawberry production, and in some cases, plant growth chambers only use LEDs as a lighting

Open Access

13 Jan. 2014. Supplemental and sole-source lighting treatments. Seedlings in the greenhouse were grown under AL or AL supplemented with ≈70 μmol·m −2 ·s −1 PPF at plant height [as measured with a spectroradiometer (PS-100; Apogee Instruments, Inc

Free access

://www.greenhousegrower.com/technology/new-whitepaper-8-greenhouse-technology-trends-for-2020/ > Higgins, C. 2016 Current status of commercial vertical farms with LED lighting market in North America, p. 309–315. In: T. Kozai, K. Fujiwara, and E.S. Runkle (eds.). LED lighting for urban agriculture

Open Access

, C.M. Burr, J.F. Kubota, C. Lopez, R.G. Morrow, R.C. Runkle, E.S. 2012 LEDs: The future of greenhouse lighting! Chronica Hort. 52 6 12 Morrow, R.C. 2008 LED lighting in horticulture HortScience 43 1947 1950 Nelson, J.A. Bugbee, B. 2014 Economic

Free access