Phillip Barak

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Phosphorus (P) has only one stable isotope and therefore tracking P dynamics in ecosystems and inferring sources of P loading to water bodies have been difficult. Researchers have recently employed the natural abundance of the ratio of (18)O/(16)O of phosphate to elucidate P dynamics. In addition, phosphate highly enriched in oxygen-18 also has potential to(More)
Knowledge of the fate of agricultural phosphorus in the environment is of crucial interest for maintaining water quality and sustaining economic agricultural enterprises on the landscape, in Wisconsin as well as elsewhere. Since the question is most properly the long term effect of a particular phosphorus-management practice, the only alternative to pure(More)
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