Nitrogen Fertilizer Timing and Phosphorus and Potassium Fertilization Rates for Established Endophyte-Free Tall Fescue: Year 3

Authors

D. W. Sweeney, Kansas State UniversityFollow
J. K. Farney, Kansas State UniversityFollow
J. L. Moyer, Kansas State UniversityFollow
D. A. Ruiz Diaz, Kansas State UniversityFollow

Keywords

Nitrogen, phosphorus, potassium, tall fescue

Abstract

Tall fescue production was measured during the third production year of a study with locations started in fall of 2016 and fall of 2017. Phosphorus (P) fertilization rate af­fected spring harvest yield at Site 1, but not at Site 2. Applying nitrogen (N) in late fall or late winter resulted in greater spring yields than applying N in spring or not applying N. However, fall harvest yields at Site 1 were greater with spring N application, but not at Site 2. The third-year tall fescue total yield rank as affected by N fertilizer timing was late winter>late fall=spring>no N at Site 1 and late winter=late fall>spring>no N at Site 2.

Recommended Citation

Sweeney, D. W.; Farney, J. K.; Moyer, J. L.; and Ruiz Diaz, D. A. (2021) "Nitrogen Fertilizer Timing and Phosphorus and Potassium Fertilization Rates for Established Endophyte-Free Tall Fescue: Year 3," Kansas Agricultural Experiment Station Research Reports: Vol. 7: Iss. 2. https://doi.org/10.4148/2378-5977.8047