8:00 AM: Jiao, You^*,1, Whalen, Joann¹, Hendershot, William ¹, ¹ Department of Natural Resource Sciences, Macdonald Campus, McGill University., Montreal, QC, Canada, Agricultural practices influence soil aggregation and nitrogen and phosphorus loss in soils.

FULL ABSTRACT

8:20 AM: Koffler, Kaden^*,1, Six, Johan ¹, van kessel, Chris¹, Kaffka, Steve¹, Temple, Steve ¹, ¹ University of California-Davis, Davis, CA, USA, Diversifying cover crop systems in California conservation tillage rotations: Tightening the N cycle and increasing agroecosystem function.

FULL ABSTRACT

8:40 AM: Tonitto, Christina^*,1, David, Mark², Drinkwater, Laurie¹, Li, Changsheng ³, ¹ Cornell University, Ithaca, NY, USA² University of Illinois, Urbana, IL, USA³ University of New Hampshire, Durham, NH, USA, Nitrogen management in agroecosystems: Applying models and data in policy development.

FULL ABSTRACT

9:00 AM: Monsen, Katie^*,1, Shennan, Carol¹, Schneider, Rosa¹, ¹ Center for Agroecology & Sustainable Food Systems, Santa Cruz, CA, USA, Estimating biological N fixation in agroecosystems with annual legume inputs.

FULL ABSTRACT

9:20 AM: Kochsiek, Amy^*,1, Knops, Jean¹, Elgersma, Kenneth^{1, 2}, Stoysich, Kate¹, Arkebauer, Timothy¹, Cassman, Ken¹, ¹ University of Nebraska-Lincoln, Lincoln, Nebraska² , Does increased crop productivity lead to increased carbon sequestration in agroecosystems?

FULL ABSTRACT

9:40 AM: , BREAK.

9:50 AM: Hooker, Beth¹, Cardon, Zoe¹, Morris, Thomas¹, ¹ University of Connecticut, Storrs, CT, 06269, Dynamics of soil organic matter associated with particle-size fractions under differential tillage and residue management over the long term.

FULL ABSTRACT

10:10 AM: Murphy, Guillermo^*,1, Dudley, Susan¹, ¹ McMaster University, Hamilton, ON, Canada, Response to root competitors and R:FR in soybean.

FULL ABSTRACT

10:30 AM: Lawhorn, C.N.^*,1, Neher, D.A.², Dively, G.P.³, ¹ University of Toledo, Toledo, OH² Department of Plant and Soil Science, Burlington, VT³ Department of Entomology, College Park, MD, Impact of Coleopteran-active Bt corn on of nontarget decomposition process and saprophytic microbial communities.

FULL ABSTRACT

10:50 AM: Herre, Edward^*,1, Van Bael, Sunshine¹, Rojas, Enith¹, ¹ Smithsonian Tropical Research Institute, Balboa, ANCON, Panama, Endophyte communities decrease in diversity as leaves age.

FULL ABSTRACT

11:10 AM: Van Bael, Sunshine^{*,1, 2}, Bichier, Peter¹, Greenberg, Russell¹, ¹ Smithsonian Migratory Bird Center, Washington, DC, USA² Smithsonian Tropical Research Institute, Balboa, ANCON, Republic of Panama, Bird insectivory reduces insect damage to Theobroma cacao crops in Bocas del Toro, Panama.

FULL ABSTRACT