267 Impact of C3 (Crop Rotation, Cover Crops, and Conservation Tillage) On Soil Quality: I

Oral Session
S06 Soil & Water Management & Conservation High-input agriculture produces greater amounts of food, feed, and fiber, but current practices have affected soil quality with diminished ecosystem services. By 2050 U.S. agricultural production may have to double, which will make existing cropland increasingly dependent on chemicals, water, and energy inputs. Such intensification of farming will have consequences on terrestrial ecosystems that are expected to be detrimental. No-till keeps topsoil and nutrients where they belong: in the field. However, transitional no-till is associated with soil compaction, weed infestations, and decrease in crop yields. For a successful NT transition, crop rotation with cover crops is essential to improve soil quality for greater agricultural sustainability.
Tuesday, October 18, 2011: 12:55 PM-4:00 PM
Henry Gonzalez Convention Center, Room 006D

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Organizer:
Rafiq Islam
Presider:
Rafiq Islam
1:00 PM
Long-Term Effects of Rotational Tillage On Visual Evaluation of Soil Structure, Soil Quality and Crop Yield.
Lars J. Munkholm, University of Aarhus; Richard Heck, University of Guelph; Bill Deen, University of Guelph
1:15 PM
Tillage Effects On Soil Carbon and Nitrogen Pools In Corn-Soybean Rotation.
Randall Reeder, The Ohio State University; Alan Sundermeier, The Ohio State University; James Hoorman, The Ohio State University; Yogendra Raut, The Ohio State University; Khandakar Islam, The Ohio State University
1:45 PM
Landform Effects on Soil C Stocks of Intensively Cropped Oxisols Under No Tillage At Atafona Watershed in Southern Brazil.
Carlos G. Tornquist, Federal University of Rio Grande do Sul; Joao Mielniczuk, Federal University of Rio Grande do Sul
2:00 PM
Assessment of Soil Quality Using Hyperspectral Spectroscopy In a Western Kenya Chronosequence.
Rintaro Kinoshita, Cornell University-Crop & Soil Sciences; Bianca Moebius-Clune, Cornell University-Crop & Soil Sciences; Harold van Es, Cornell University-Crop & Soil Sciences; W. Dean Hively, USGS; Volkan A. Bilgili, Harran University
2:15 PM
2:30 PM
Multifunctionality of Sawah Eco-Technology: Why Sawah-Based Rice Farming Is Critical for Africa's Green Revolution.
Charles A. Igwe, University of Nigeria; Sunday E. Obalum, University of Nigeria; Toshiyuki Wakatsuki, Kinki University
2:45 PM
Effects of Subsoiling and Soil Surface Management On Maize Productivity In the Central Highlands of Kenya.
Daniel N. Mugendi, Kennyatta University; Felix K. Ngetich, Kennyatta University; Monicah Mucheru, Kennyatta University; Jayne Mugwe, Kennyatta University; Chris Shisanya, Kennyatta University; Jan Diels, Katholieke Universiteit Leuven
3:15 PM
Subsurface Soil Compaction Effects On Soil Properties and Barley Root Growth.
Guillermo Hernandez, The New Zealand Institute for Plant & Food Research Limited; Erin J. Lawrence-Smith, The New Zealand Institute for Plant & Food Research Limited; Sarah M. Sinton, The New Zealand Institute for Plant & Food Research Limited; Frank Tabley, The New Zealand Institute for Plant & Food Research Limited; Andreas Schwen, University of Natural Resources & Life Sciences, Vienna; Michael H. beare, The New Zealand Institute for Plant & Food Research Limited; Hamish E. Brown, The New Zealand Institute for Plant & Food Research Limited
3:45 PM
Evaluation of Mulch Application As An Erosion Retardant On Louisiana Roadsides.
Noura Bakr, Louisiana State University Agricultural Center; David Weindorf, LOUISIANA STATE UNIVERSITY AGCENTER; Yuanda Zhu, LOUISIANA STATE UNIVERSITY AGCENTER; Magdi Selim, LOUISIANA STATE UNIVERSITY AGCENTER
4:00 PM