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The Center for Native Grasslands Management

Title: Establishing methods for switchgrass
Year: 2002
Author(s): Edwards, S. D.
Source Title: Proceedings of the Third Eastern Native Grass Symposium
Source Type: Proceedings
pages: 295
Original Publication:  
Abstract: Switchgrass is a native warm season grass that is capable of producing high yields across many soil types and environmental conditions. A limiting factor in the widespread use of switchgrass is slow and inconsistent establishment due to weed competition. A possible solution to this problem is to select a planting data and seedbed preparation technique that minimizes weed competition. The objective of this study was to evaluate estalishment method (broadcast and no-till) and planting date (fall and spring). Planting dates included April 15 (3 treatments), June 1 (1 treatment), and October 1 (4 treatments). Percent stand measurements were made three weeks after green up and at the end of the growing season. In 1999, only two treatments had measurable stands. The treatment with Roundup at 1 lb ai/ac in mid August then planting no-till into fall prepared seedbed averaged a 40% stand. The treatment with Gramoxone at 1 lb ai/ac in April then planting broadcast into a spring prepared seedbed (G1SD) averaged 60%. The G1SD treatment had a 100% stand in 2000, while no other treatment produced more than a 5% stand. It appears that broadcast planting in the spring into a chemically controlled seedbed increases switchgrass establishment.
Publisher: The North Carolina Botanical Garden, Chapel Hill, NC, October 1-3, 2002. Omnipress, Madison, WI
Editor(s): J. Randall