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Stephanie Wedryk, Joel Felix, Doug Doohan, and John Cardina

Environmental quality and public health concerns about the use of chemicals in conventional agriculture have driven a large increase in demand for organic food ( Dorais, 2007 ). Acreage of certified organic farm land in vegetable production in the

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Xin Zhao, C.B. Rajashekar, Edward E. Carey, and Weiqun Wang

Work supported in part by a grant from the Organic Farming Research Foundation for a project entitled “Are organic vegetables more nutritious?” and by Initiative for Future Agriculture and Food Systems Grant No. 2001-52101-11431 from the USDA

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Heidi J. Johnson, Jed B. Colquhoun, Alvin J. Bussan, and Carrie A.M. Laboski

Nitrogen management for optimal crop production is one of the most difficult and costly practices in organic agriculture. The majority of the N in organic sources is bound in organic compounds, which must be mineralized by the soil microbial

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Danielle D. Treadwell, George J. Hochmuth, Robert C. Hochmuth, Eric H. Simonne, Lei L. Davis, Wanda L. Laughlin, Yuncong Li, Teresa Olczyk, Richard K. Sprenkel, and Lance S. Osborne

Sales of organic food reached $14.6 billion in the United States in 2005 and of those sales, fruit and vegetable sales comprised 2.48% of the total U.S. agricultural market share [ Organic Trade Association (OTA), 2006 ]. The organic fruit and

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Albert H. Markhart III, Milton J. Harr, and Paul Burkhouse

Oral Session 1—Organic Horticulture Moderator: Matthew D. Kleinhenz 18 July 2005, 2:00–4:00 p.m. Ballroom H

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Vincent M. Russo and P. Perkins-Veazie

for use as amendments in potting media in organic production. Arbuscular mycorrhizae (AM) are fungi that colonize roots of almost all vascular plants ( Singh and Adholeya, 2002 ). Linderman and Davis (2001) added an AM fungus, Glomus intraradices

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Russell W. Wallace, Annette L. Wszelaki, Carol A. Miles, Jeremy S. Cowan, Jeffrey Martin, Jonathan Roozen, Babette Gundersen, and Debra A. Inglis

Spring 2010 and 2011 in high tunnel and open-field organic production systems located at the University of Tennessee, East Tennessee AgResearch and Education Center Organic Crops Unit in Knoxville (lat. 35.96°N, long. 83.92°W); the Texas AgriLife Research

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Laban K. Rutto, Zelalem Mersha, and Mizuho Nita

The proportion of organically produced crops in the United States has been steadily increasing. The 2016 certified organic survey conducted by the U.S. Department of Agriculture’s (USDA) National Agricultural Statistics Service (NASS) in conjunction

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Charles Benbrook

changes significantly as a function of these exogenous factors and farming system choices, in some cases exacerbating impacts on nutrient density and in other cases ameliorating them. For example, Yanez et al. (2008) showed that organic production can

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Gwendolyn Hawkins, Stephanie E. Burnett, and Lois B. Stack

Consumer interest in certified organic produce and plants has increased in recent years. Worldwide, organic produce markets increased 20% every year between 1999 and 2004 ( Willer and Yussefi, 2004 ). Fruit and vegetables were the top grossing