M.S. Soil Science- 2013, Auburn University, Auburn, AL
Thesis title: Carbon and nitrogen cycling in a cotton-peanut-bahiagrass rotation.
B.A., Chemistry- 2011, Auburn University, Auburn, AL
Phosphorus is an essential plant nutrient that is also a common pollutant in aquatic systems such as the Chesapeake Bay and the Delaware Inland Bays’ watershed. Eutrophication caused by increased levels of phosphorus can lead to decreased dissolved oxygen levels and excessive growth of Pfiesteria, which has been linked to fish kills as and human toxicity. The dense poultry industry of southern Delaware produces approximately 300,000 Mg of broiler litter annually. Water sources in proximity to southern Delaware’s poultry industry are particularly susceptible to phosphorus pollution due to application of broiler litter as fertilizer to agricultural soils. A fundamental understanding of soil phosphorus speciation is vital in order to improve forecasting for phosphorus retention and transport in soils. Although the chemistry of phosphorus has been extensively studied, specific mechanisms for phosphorus adsorption to soils remain largely unknown. My research in the Environmental Soil Chemistry group at University of Delaware will use spectroscopic techniques (FTIR and XAS) to elucidate mechanisms of phosphorus bonding in soils. I seek to understand reactivity and transport of phosphorus in soils to determine the mechanisms controlling phosphorus release into the environment. Understanding how phosphorus is retained by soils will allow for effective identification of management practices to mitigate further loss of phosphorus to the environment.
Gamble, A.V., J.A. Howe, D.P. Delaney, E. van Santen, and R.P. Yates. 2014. Iron
chelates reduce iron chlorosis in soybean on high pH soils. Agron. J. (In Press).
Li, Y., T.B. Lee, T. Wang, A.V. Gamble, and A.V. Gorden. 2012. Allylic C−H
Activations Using Cu(II) 2-Quinoxalinol Salen and tert-Butyl Hydroperoxide. J.
Org. Chem. 77:4628-4633.
Gamble, A., J. Howe, and D. Watts. 2013. Bahiagrass impact on carbon storage in
Coastal Plain soils under peanut-cotton-bahiagrass rotation. American Society
of Agronomy International Meetings, Tampa, FL.
Gamble, A. and J. Howe. 2013. Influence of Bahiagrass in Rotation with Peanut and
Cotton on Carbon Storage in Southeastern US. American Society of Agronomy
Southern Branch Meeting, Orlando, FL.
Gamble, A., R. Prevatt, and J. Howe. 2012. Contribution of a Perennial Forage Grass to
Carbon Storage in a Peanut-Cotton-Bahia Rotation in Ultisols. American Society
of Agronomy International Meetings, Cincinnati, OH.
Gamble, A. 2012. Iron Chelates and Supplements to Alleviate Iron Chlorosis in Soybean
in High pH Soils. American Society of Agronomy Southern Branch Meeting,
Gamble, A., D. Delaney, and J. Howe. 2011. Iron Chelates and Supplements to Alleviate
Iron Chlorosis in Soybean in High pH Soils. American Society of Agronomy
International Meeting, San Antonio, TX.
Scholarships and Awards
Auburn University Outstanding Master’s Student Award, Auburn University Graduate School, Auburn, AL, 2014
A.L. Smith Outstanding Graduate Student Award, Department of Crop, Soil, and Environmental Sciences, Auburn University, Auburn, AL, 2014
Environmental Quality Section Outstanding Graduate Student Award, American Society of Agronomy International Meeting, Tampa, FL, 2013
Legcy Environmental Scholarship, Legacy Environmental Services, Montgomery, AL, 2012