Vegetative Erosion Control Studies Tennessee-Tombigbee Waterway.
Abstract
Vegetative erosion control studies of establishment, overseeding, and refertilization were conducted at two sites in Tishomingo CO., MS (Yellow Creek Port Site and Tennessee-Tombigbee Waterway Site) that were most representative of the Tenn-Tom Waterway slopes and spoil areas from August, 1976 thru October 1980. Primary objectives were focused on species selection, seeding rates, mulch evaluations, post-establishment fertilization and overseeding. Species shown to be well adaptive to site and soil conditions were weeping lovegrass, tall fescue, rye, annual ryegrass, bahiagrass, sericea lespedeza, and crimson clover; common bermudagrass and hairy vetch showed moderate adaptation. Comparison of seeding rates, mixtures, and seed distribution methods of either mixed or contour seeding were evaluated as well as straw-asphalt seed mulch and nylon-paper webbing mulch. Overseeding was performed to integrate plant species into or increase the density of an established vegetative stand. Cultivation practices of burning, discing, and clod-busting were evaluated with clod-busting being the most effective method. Refertilization with nitrogen was evaluated as a short term maintenance practice to maintain slope stabilization prior to overseeding. Regrowth of the established stand following overseeding was greater with prior nitrogen fertilization. Plant response to nitrogen fertilization (80 lbs N/acre) lasted two years. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1981
- Accession Number
- ADA108318
Entities
People
- Clifford Trammel
- Jeffrey V. Krans
- Richard Harrod
- Veronica Henning