181 Symposium--Organic Zero-till: Strategies for Removing Tillage From Organic Management Systems

Oral Session
A12 Organic Management Systems (Provisional)

Tillage is an important weed control tool in organic farming systems. However, tillage can reduce soil quality and impact cropping systems negatively. Past research indicated that cover crops can create a weed-suppressive mulch when killed mechanically but without tillage. This concept has been combined with emerging technologies to develop different strategies for suppressing weeds and other pests that do not rely on tillage. Important efforts to eliminate tillage within organic cropping systems across North America will be presented, with particular focus on northeastern, north central, southern, and western regions in the USA. Obstacles preventing the widespread adoption of organic zero-till, along with possible solutions, will be discussed by a diverse group of presenters during the symposium.


A08 Integrated Agricultural Systems
Tuesday, November 2, 2010: 10:00 AM-12:00 PM
Hyatt Regency Long Beach, Shoreline B, First Floor

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Michael Rothrock
10:00 AM
Introductory Remarks
10:05 AM
Reducing Tillage in Mid-Atlantic Organic Grain Production.
Steven Mirsky, USDA-ARS; John Teasdale, USDA-ARS; William Curran, Penn State University; David Mortensen, The Pennsylvania State University; Matthew Ryan, The Pennsylvania State University; Jeffrey Moyer, The Rodale Institute
10:25 AM
Utilizing Cover Crop Mulches to Reduce TIllage in Organic Systems in the Southeast.
Samuel Christopher Reberg-Horton, North Carolina State University; Julie Grossman, North Carolina State University; W. Carroll Johnson, USDA-ARS; Ted S. Kornecki, USDA-ARS; Alan Meijer, NC State University - Soil Science Department; Andrew J. Price, USDA-ARS; George Place, NC State Univ. Crop Science Dept; Theodore M. Webster, USDA-ARS
10:45 AM
Organic No-till in Iowa: Many Challenges to Overcome.
Kathleen Delate, Iowa State University; Daniel Cwach, Iowa State University
11:05 AM
11:25 AM
1. Progress Towards No-till Organic Weed Control in Western Canada.
Robert Blackshaw, Agriculture and Agri-Food Canada; Steven Shirtliffe, University of Saskatchewan; Eric N. Johnson, Agriculture and Agrifood Canada; Martin H. Entz, University of Manitoba
11:45 AM
Organic Zero-till in the Dryland U.S. Plains Region: Opportunities and Obstacles.
Patrick Carr, North Dakota State University; Randy Anderson, USDA-ARS; Yvonne Lawley, NDSU Carrington Research Extension Center; Perry Miller, Montana State University; Steve F. Zwinger, NDSU Carrington Research Extension Center
12:00 PM