Characterizing phosphorus forms in Saskatchewan soils using solution 31P NMR spectroscopy
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In soils and other environmental samples, phosphorus (P) may be found in a range of inorganic and organic forms. Inorganic P forms include orthophosphate, which is readily available to plants, and complex inorganic P forms such as pyrophosphate and polyphosphate. Organic P forms can be divided into groups such as orthophosphate monoesters (e.g. sugar phosphates, phytic acid) and orthophosphate diesters (e.g. phospholipids, DNA) and phosphonates. Identifying P forms is important to enhance crop growth, with and without fertilization, and to minimize P loss to water, where it can cause harmful algal blooms. This presentation describes some of our recent research using solution 31P NMR spectroscopy to characterize P forms in a range of Saskatchewan soils, as well as swine manure.
Part OfSoils and Crops Workshop
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