139 Management Impacts on Soil Properties and Soil C and N Dynamics: I

Oral Session
SSSA Division: Soil & Water Management & Conservation
This session will focus on the impact of management practices on soil properties, aggregation, and C and N dynamics as a result of C and N inputs to the soil, their transformation and translocation in the soil profile, sequestration as aggregate-associated C and N, particulate organic matter (POM), and losses as water soluble or greenhouse gas emission, wind and water erosion, and other processes. This session will strengthen our knowledge on the impact of management practices on soil quality and productivity, C and N balance, and N use efficiency.
Monday, November 3, 2014: 8:25 AM-12:00 PM
Hyatt Regency Long Beach, Shoreline A

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Organizer:
Maysoon M. Mikha
Presider:
Maysoon M. Mikha
8:25 AM
Introductory Remarks
8:45 AM
Simulation of Key Soil Properties in Two Long-Term Cropping Experiments in Subtropical Brazil: A Daycent Validation Exercise.
Carlos G. Tornquist, Federal University of Rio Grande do Sul; Douglas Adams Weiler, UFRGS; Cimélio Bayer, UFRGS; Anderson Santi, EMBRAPA Trigo; Henrique Pereira dos Santos, EMBRAPA Trigo; Janquieli Schirmann, UFRGS
9:00 AM
Aggregate Stability Index of Ultisol Under Sugarcane Bagasse Ash Application.
Gabriel Diniz Faleiros, Sao Paulo State University; Jose E. Cora, Sao Paulo State University; Priscila R. Volante, Sao Paulo State University
9:15 AM
Application of a Laser Diffraction Technique to Measure Water Stable Soil Aggregates in Response to Agricultural Landuse in Ile-Ife, Nigeria.
Durodoluwa Joseph Oyedele, Obafemi Awolowo University; Roberto Pini, Institute for Soil Ecosystem - National Centre for Research (ISE-CNR); Manuel Scatena, Institute for Soil Ecosystem - National Centre for Research (ISE-CNR); Enzo Sparvolli, Institute for Soil Ecosystem - National Centre for Research (ISE-CNR); Oladapo Fatai Tijani, Obafemi Awolowo University
9:30 AM
Soil Organic Carbon Stock and Distribution in Aggregate Size/Density Pools As Affected By Grazing Land Intensification in Subtropical Ecosystems .
Sutie Xu, University of Florida; Maria Lucia A. Silveira, University of Florida; Kanika S. Inglett, University of Florida; Lynn E. Sollenberger, University of Florida; Stefan Gerber, University of Florida
9:45 AM
Sensitivity of Labile Soil Organic Carbon Pools to Short-Term Conservation Agriculture Production Systems in Cambodia.
Lyda Hok, North Carolina A&T State University; Joao Carlos Moraes Sa, Universidade Estadual de Ponta Grossa; Stephane Bulakia, Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD); Manuel R. Reyes, North Carolina A&T State University; Vira Leng, General Directorate of Agriculture; Rada Kong, General Directorate of Agriculture; Florent Elie Tivet, Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD); Clever Briedis, Universidade Estadual de Ponta Grossa; Daiani da Cruz Hartman, Universidade Estadual de Ponta Grossa; Lucimara Aparecida Ferreira, Universidade Estadual de Ponta Grossa; Tomas Magno, Universidade Estadual de Ponta Grossa
10:00 AM
Break
10:15 AM
Effects of a Maize-Based Conservation Agriculture Production System on Soil Quality.
Aliza Pradhan, University of Hawaii at Manoa; Travis Idol, University of Hawaii at Manoa; Susan E. Crow, University of Hawai‘i at Manoa; Pravat Kumar Roul, Orissa University of Agriculture & Technology
10:30 AM
Soil Nutrient Dynamics and Yield in a Young Merlot Grape (Vitis vinifera) Vineyard: Implications of Irrigation and Soil Amendment Practices.
Kirsten Hannam, University of British Columbia | Okanagan; Gerald Neilsen, Agriculture and Agri-Food Canada; Denise Neilsen, Agriculture and Agri-Food Canada; Tom Forge, Agriculture and Agri-Food Canada; Melanie D Jones, University of British Columbia | Okanagan; Craig F Nichol, University of British Columbia | Okanagan; Mesfin M Fentabil, University of British Columbia Okanagan
10:45 AM
Long-Term Effects of Agriculture on Soil Organic Carbon in Western Wisconsin.
Holly A.S. Dolliver, University of Wisconsin-River Falls; Jabez T. Muelemans, University of Hawaii
11:00 AM
The Effects of 20 Years of Grazing on Soil Physical and Chemical Properties.
Timothy M. Shaver, University of Nebraska - Lincoln; Marty R. Schmer, USDA-ARS; Terry Klopfenstein, University of Nebraska-Lincoln; Brian J. Wienhold, USDA-ARS; Humberto Blanco, University of Nebraska - Lincoln
11:15 AM
Effect of Lipid-Extracted Algae on Soil Physicochemical Dynamics.
Katie L. Rothlisberger-Lewis, Texas A&M AgriLife Research; Frank M. Hons, Texas A&M University; Jamie L. Foster, Texas Agrilife Research-Beeville; Terry J. Gentry, Texas A&M University; Thomas W. Boutton, Texas A&M University
11:30 AM
Generalized Model for the Temporal Evolution of the Carbon Sequestration Potential of Eroding Watersheds.
Asmeret Asefaw Berhe, University of California-Merced; Teamrat Ghezzehei, University of California-Merced
11:45 AM
Long-Term Trend of Soil Organic Carbon Influenced By Crop Residue and Nitrogen Management Practices.
Rajan Ghimire, Oregon State University Experiment Station; Stephen Machado, Oregon State University, CBARC
12:00 PM
Adjourn