Mississippi State University
Poston, H. Daniel
Koger, H. Clifford
Sciumbato, L. Gabriel
Blaine, Alan M.
Date of Degree
Graduate Thesis - Open Access
Master of Science
College of Agriculture and Life Sciences
Department of Plant and Soil Sciences
Early planting of indeterminate soybean varieties has increased yield potential in Mississippi. Narrow row patterns have effectively alleviated canopy closure problems and maximized light interception. Stresses related to inadequate drainage persist. Field experiments were conducted in 2006 and 2007 to evaluate productivity and profitability of bedding systems to minimize stresses related to poor drainage. Soybean planted on a conventional 100 cm bedding system provided a higher degree of growth and development and higher seed yields than flat plantings when border irrigated both years. Raised 100 cm-wide beds offered 23 to 45% greater net returns above input costs relative to flat plantings in 2006 and 2007 respectively. Under simulated flood irrigation, soybean planted on 200 cm-wide beds produced yields similar to conventional beds in 2006; however in 2007 200 cm-wide beds produced higher yields than flat planted plots but lower than 100 cm-wide beds.
Blessitt, James Brewer, "Productivity of raised seedbeds for soybean [Glycine max. (L.) Merr.] production on clayey soils of the Mississippi Delta" (2008). Theses and Dissertations. 3653.