97-16 Row Spacing Effects On Hybrid Growth and Yield for Mississippi Irrigated Corn Production.

See more from this Division: C02 Crop Physiology and Metabolism
See more from this Session: Graduate Student Oral Competition
Monday, October 22, 2012: 1:00 PM
Duke Energy Convention Center, Room 202, Level 2
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Tyson Poulsen, Mississippi State University, Starkville, MS, Erick Larson, Mississippi State University, Mississippi State, MS, Michael Cox, 117 Dorman Hall, Mississippi State University, Mississippi State, MS, M. Wayne Ebelhar, Delta Research and Extension Center, Mississippi State University, Stoneville, MS, Normie Buehring, Mississippi State University, Verona, MS and Darrin Roberts, 32 Creelman St., Mississippi State University, Mississippi State, MS
Title: Row spacing effects on hybrid growth and yield for Mississippi irrigated corn production

Authors: T.T. Poulsen, E.J. Larson, M.S. Cox, M.W. Ebelhar, N.W. Buehring and D.F. Roberts

Abstract: Over the last decade, Mississippi has experienced a shift in row crop production from predominantly cotton to corn and soybeans.  For this purpose an evaluation of corn row spacing, could potentially increase grain crop productivity and profitability.   A 3-year study was established in 2010 to (1) determine whether corn grown in single 76-cm rows produces higher yields than corn grown in conventional wide rows (96 to 102 cm) or twin rows (20 to 25 cm apart on a single bed) for four contrasting hybrids, and (2) evaluate how all combinations of row spacing and hybrids influences photosynthetically active radiation (PAR), leaf area index (LAI), stalk diameter, and grain test weight.  Research is being conducted on 2 furrow-irrigated cornfields with the collection of measurements at multiple corn growth stages.  Results from this study will help evaluate row spacing effects on crop development and yield for corn production in Mississippi. Averaged across both locations, 2011 results showed significantly higher yield for 76-cm rows (9.95 Mg ha-1) compared to wide twin rows (9.24 Mg ha-1) and wide rows (8.98 Mg ha-1). Additional 2012 results will be presented at the International Annual Meetings.

See more from this Division: C02 Crop Physiology and Metabolism
See more from this Session: Graduate Student Oral Competition