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Effect of water pH on yield and nutritional status of greenhouse cucumber grown in recirculating hydroponics

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Date Issued:
2008-11
Title: Effect of water pH on yield and nutritional status of greenhouse cucumber grown in recirculating hydroponics.
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Name(s): Tyson, R. V., creator
Simonne, E. H., creator
Treadwell, D. D., creator
Davis, Megan, creator
White, J. M., creator
Type of Resource: text
Genre: Article
Issuance: single unit
Date Issued: 2008-11
Publisher: Taylor & Francis
Extent: 15 p.
Physical Description: pdf
Language(s): English
Identifier: 1925721 (digitool), FADT1925721 (IID), fau:5472 (fedora), 10.1080/01904160802405412 (doi)
Note(s): Cucumbers are produced in integrated hydroponic and aquaculture systems (aquaponics). Aquaponics balances pH for plants, fish, and nitrifying bacteria. Nitrification prevents buildup of toxic waste ammonia by conversion to nitrate (NO3-)- nitrogen (N). The pH for hydroponic cucumbers (5.5-6.0) and nitrification (7.5-9.0) requires reconciliation to improve systems integration. Cucumbers were grown at pH of 5.0, 6.0, 7.0, and 8.0 with additional foliar sprays at pH 7.0 and 8.0. Plant shoot dry weight, length, N, and phosphorus (P) content at 14 DAT were similar from pH 5.0 to 7.0, but reduced at pH 8.0. Nutrient solution and shoot dry matter Mn and Fe decreased as pH increased. Foliar sprays had no effect on cucumber fruit yield. Early yield was higher at pH 5.0 compared to pH 8.0 but total yield was unaffected by pH. Cucumbers in recirculating culture may be maintained at pH levels more optimum for nitrification (7.5-8.0) except during production for early season markets.
This post print article is an electronic version of an article published by Taylor & Francis in Journal of Plant Nutrition as Tyson, R.V., E. H. Simonne, D. D. Treadwell, M. Davis, J. M. White (2008) Effect of Water pH on Yield and Nutritional Status of Greenhouse Cucumber Grown in Recirculating Hydroponics. Journal of Plant Nutrition, 31(11) 2018‐2030 doi:10.1080/01904160802405412 Journal of Plant Nutrition is available online at: http://www.informaworld.com/openurl?genre=article&issn=01904167&volume=31&issue=11&spage=2018
Florida Atlantic University. Harbor Branch Oceanographic Institute contribution #1782.
Subject(s): Hydroponics
Aquaculture
Nitrification
Bacteria, Nitrifying
Persistent Link to This Record: http://purl.flvc.org/FCLA/DT/1925721
Links: http://dx.doi.org/10.1080/01904160802405412
Restrictions on Access: ©2008 Taylor & Francis
Host Institution: FAU