Rye Seeded for Grain in Coastal Bermudagrass1
- L. F. Welch,
- S. R. Wilkinson and
- G. A. Hillsman2
A 3-year study compared rye (Secale cereale L.) grain and ‘Coastal’ bermudagrass (Cynodon dactylon L.) forage yields with cropping systems of Coastal only, rye only (conventional seedbed), and Coastal-rye (rye seeded in Coastal). Five rates of N were added for rye and two rates of N were added for Coastal.
Sod-seeded rye yielded as well as conventionally seeded rye. First-harvest Coastal yields were lower with Coastalrye than with Coastal only. This reduction in Coastal yield increased as the rates of N added for rye increased. Annual Coastal yields, averaged over all rates of N added for rye, were as high with Coastal-rye as with Coastal only for 2 of the 3 years.
Light intensity, soil water, and soil temperature were lower with a high rate of N added for rye than with a low rate. All of these factors probably contributed to the low first-harvest Coastal yield, but shading of Coastal by the rye grain crop is suggested as the dominant factor.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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