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PH influenced by the elemental composition of nutrient solutions

, : PH influenced by the elemental composition of nutrient solutions. Journal of Plant Nutrition 20(7-8): 911-923

Nutrient solutions can be considered as aqueous solutions of inorganic ions. The pH of a nutrient solution is a property that is inherent to its composition. If another pH is aimed at, this can only be reached by changing the elemental composition. The pH of an aqueous solution is determined by the initial concentration of acids and bases. In the case of nutrient solutions, this is dihydrogen phosphate (H-2PO-4-), bicarbonate (HCO-3-) and/or ammonium (NH-4+). In this study, formulas are derived to calculate the pH of a nutrient solution as a function of the concentration of H-2PO-4-, NH-4+, and/or HCO-3-. The pH of a nutrient solution affects the dissociation, complexation, and precipitation reactions occurring in nutrient solutions. These chemical reactions significantly impact elemental speciation and bioavailability, and therefore, have to be taken into account in hydroponic plant nutritional research. The term "speciation" indicates the distribution of elements among their various chemical and physical forms like: free ions, soluble complexes, chelates, ion pairs, solid and gaseous phases, and different oxidation states, all of which influences their reactivity, mobility and bioavailability. A good knowledge of the chemical reactions occurring in nutrient solutions is the first prerequisite in hydroponic plant nutritional research. The pH of a nutrient solution is determined by its initial concentration of H-2PO-4-, NH-4+, and HCO-3-.

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Accession: 002914513

DOI: 10.1080/01904169709365305

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Brown, G.W.; Craig, T.K.J.; Harris, T.O., 2008: Parental maltreatment and proximal risk factors using the Childhood Experience of Care & Abuse (CECA) instrument: a life-course study of adult chronic depression - 5. This is the final paper of a series concerning parental maltreatment and chronic depression in women. It extends the scope of the analysis to take account of proximal risk factors, present within at most six months of an onset. It deals with the c...

Demeron, P.; Pillias, A.F., 1999: Projects for important conservation and heritage areas: a response to the degradation of major sites. Projects for important conservation and heritage areas funded and overseen by the French Ministry for the Environment are described. Conditions that a site needs to fulfil in order to be selected for such a project are considered. Locations of com...

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Svec, A.; Bury, Y., 2011: Haemangioma of the parathyroid gland. Does it really exist?. We are reporting a case of a capillary haemangioma-like proliferation arising within a parathyroid gland adenoma, associated with primary hyperparathyroidism. The vessel proliferation bearing a close resemblance to a capillary haemangioma consiste...

Melikoglu, M.; Melikoglu, M.Alkan., 2013: The prevalence of fibromyalgia in patients with Behçet's disease and its relation with disease activity. Behçet's disease (BD) is a chronic disorder characterized by mucocutaneous and multisystem manifestations. Fibromyalgia (FM) is characterized by widespread musculoskeletal pain and may be present concomitantly with several rheumatic diseases...

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