Armstrong Memorial Research and Demonstration Farm
Authors: Kathleen Delate (Iowa State University) , Andrea McKern (Iowa State University) , Cynthia A. Cambardella (USDA National Soil Tilth Lab) , Robert Burcham (Iowa State University)
The Neely-Kinyon LTAR site was established in 1998 to study the long-term effects of organic production in Iowa. Treatments at the LTAR site, replicated four times in a randomized complete block design, included the following rotations: conventional Corn-Soybean (C-S), organic Corn-Soybean-Oats/Alfalfa (C-S-O/A), organic Corn-Soybean-Oats/Alfalfa-Alfalfa (CS-O/A-A), and Soybean-Wheat (S-W). Variety selection and planting methods in 2006 were as follows: Pioneer 34A15 corn was planted at a depth of 1.75 in. as untreated seed at a rate of 32,000 seeds/acre in the organic plots and as treated seed in conventional plots, on May 16, 2006. Schillinger 240F.Y soybeans were planted at a depth of 2 in. in organic and conventional plots at a rate of 165,000 seeds/acre on May 22, 2006.
Keywords: Horticulture, Agronomy
How to Cite: Delate, K. , McKern, A. , Cambardella, C. A. & Burcham, R. (2007) “Comparison of Organic and Conventional Crops, Long-Term Agroecological Research (LTAR) Site”, Iowa State University Research and Demonstration Farms Progress Reports. 2006(1).