Regrowth Potential of Coastal Bermudagrass as Related to Previous Nitrogen Fertilization1
- Anthony A. Adegbola and
- Cyrus M. McKell2
This study evaluated the regrowth potential of Coastal bermudagrass differentially fertilized during a previous season with 0, 250, 500, 750, 1000, and 1250 pounds N per acre in 5 equal increments, respectively. Six-inch diameter dormant sod plugs were taken from each plot, potted, and placed in a dark chamber. Leaf growth was measured in weight of dry matter produced per sod plug. Carbohydrate reserves in stubble and rhizomes were determined by chemical analysis.
Regrowth after 6 weeks was closely related to the content of carbohydrate reserve present in the stubble and rhizome. Overall regrowth (18 weeks) mainly reflected the result of the first 6-week growth period and suggested that 6 weeks were adequate for this test. Sod plugs from plots fertilized at 500 pounds N per acre made the best regrowth. Least regrowth was made by sod plugs from plots fertilized at 750 pounds N per acre.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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