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Megan M. Kennelly, Timothy C. Todd, Derek M. Settle, and Jack D. Fry

sodium bicarbonate were used by some superintendents in the Chicago, IL, area (R.T. Kane, Chicago District Golf Association, Lemont, IL; personal communication; 2008). Researchers in Pennsylvania tested sodium bicarbonate dissolved in water at a rate of

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Luis Alonso Valdez-Aguilar and David William Reed

Response to alkalinity was evaluated in two hibiscus cultivars, Bimini Breeze and Carolina Breeze, grown in a soilless growing medium and in hydroponic culture. For soilless growing medium, plants were potted in a sphagnum peat–perlite-based substrate and irrigated with solutions containing 0 to 10 mm NaHCO3 for 12 weeks. In hydroponic culture, bare-rooted plants were transferred to a 9-L tray containing a Hoagland's nutrient solution prepared with NaHCO3 at the concentrations previously indicated. In soilless growing medium, shoot dry weight was minimally affected by NaHCO3 concentration for `Bimini Breeze', but `Carolina Breeze' exhibited a significant decrease in shoot mass with increasing NaHCO3 concentration. In hydroponic culture, increasing concentration of NaHCO3 induced a decrease in shoot and root mass in both cultivars, but root mass decrease was more pronounced in `Bimini Breeze'. In soilless growing medium, increasing the concentration of NaHCO3 caused an increase in growing medium pH. The pH increase was less pronounced for `Bimini Breeze' than for `Carolina Breeze', indicating a higher capacity for root zone acidification by `Bimini Breeze'. Newly developed leaves of both cultivars showed increasing chlorosis with increasing NaHCO3 concentration. However, `Bimini Breeze' was more tolerant because, according to regression models, 5.7 mm NaHCO3 would be required to reduce chlorophyll levels by 10%, compared with 2.2 mm for `Carolina Breeze', when grown in soilless medium. Fe reductase activity decreased when `Carolina Breeze' plants were grown in 5 mm NaHCO3. However, in `Bimini Breeze', Fe reductase activity was enhanced. These observations indicate that the increased tolerance of `Bimini Breeze' to increasing alkalinity is the result of enhanced Fe reductase activity and increased acidification of the root zone.

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E. W. Bush, M. L. Robbins, and D. A. Wall

Sodium bicarbonate type irrigation water is detrimental to the growth of Azalea indica `Formosa'. Alkaline irrigation water reduced both top and root growth of `Formosa' azalea. Leaf tissue sodium was significantly greater in azalea plant tissue irrigated with alkaline water. Concentrated sulfuric acid was used to acidify the alkaline water source. Acidification significantly reduced the uptake of sodium into the leaf tissue by 45%. Leaf tissue Ca and Mg levels were significantly greater from plants irrigated wtih deionized water. Azalea plants irrigated with acidified water produced significantly better quality plants. Leaf and root tissue samples were taken after 8 months.

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İbrahim Kahramanoğlu and Chunpeng Wan

of different treatments, including low-density polyethylene (LDPE) and polypropylene (PP) packaging, HWD, rosemary leaf extracts, HWD with rosemary leaf extracts (RLEX), sodium bicarbonate, arabic gum, and ultraviolet-blacklight blue (BLB), on the

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Wenqian Zhang, Xiaoling Jin, Donglin Zhang, Minhuan Zhang, and Wen Xing

schneideriana to sodium bicarbonate stress Acta Agriculturae Jiangxi 32 2 448 45 https://doi.org/10.3969/j.issn.1000-4440.2016.02.032

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Ricardo Goenaga, A. Graves Gillaspie Jr, and Adolfo Quiles

electrode. Exchangeable cations [potassium, magnesium, calcium (Ca), Mn] were extracted with neutral 1 N NH 4 OAc and determined by atomic absorption spectroscopy. Phosphorus was determined by extracting with pH 8.5 sodium bicarbonate and determined using

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Ryan W. Dickson, Paul R. Fisher, Sonali R. Padhye, and William R. Argo

, J.M. 2007 Nutrient deficiencies in bedding plants. Ball Publishing, Batavia, IL Graham, M.J. Stephens, P.A. Widholm, J.M. Nickell, C.D. 1992 Soybean genotype evaluation for iron deficiency chlorosis using sodium bicarbonate and tissue culture J

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Qiang Zhu, Yuncong C. Li, Rao S. Mylavarapu, Kelly Morgan, and Mingjian Geng

optimum crop production and protection of the Biscayne Aquifer in South Florida. The most commonly used STP extractants for calcareous soils include Olsen, AB-DTPA, and Mehlich-3. The Olsen or sodium bicarbonate extraction method uses bicarbonate (HCO 3

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Reagan W. Hejl, Benjamin G. Wherley, James C. Thomas, and Richard H. White

common problem associated with low-quality irrigation water is the presence of sodium bicarbonate, which can cause rapid deterioration of soil structure due to dispersion of soil colloids ( Marcum, 2006 ). Golf courses in regions of the United States with

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Huseyin Karlidag, Ertan Yildirim, Metin Turan, Mucahit Pehluvan, and Figen Donmez

by extraction with sodium bicarbonate. Circular 939. USDA, Washington, DC Pieterse, C.M.J. Van Pelt, J.A. Verhagen, B.W.M. Ton, J. VanWees, S.C.M. Leon-Kloosterziel, K.M. Van Loon, L.C. 2003 Induced systemic resistance by plant growth