HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Web of Science (2) Citing Articles via Google Scholar Google Scholar Articles by Kalmbacher, R. S. Articles by Martin, F. G. Search for Related Content PubMed Articles by Kalmbacher, R. S. Articles by Martin, F. G. Agricola Articles by Kalmbacher, R. S. Articles by Martin, F. G. Related Collections Forage Management Nitrogen Soil Organic Matter Sulfur Plant Nutrition

Production Papers

Sulfur Fertilization of Bahiagrass with Varying Levels of Nitrogen Fertilization on a Florida Spodosol

^a Univ. of Florida, Range Cattle Res. and Educ. Cent., 3401 Experiment Rd., Ona, FL 33865-9706
^b Univ. of Florida, Southwest Res. and Educ. Cent., 2686 SR 29 N, Immokalee, FL 34142-9515
^c Univ. of Florida, Dep. of Stat., P.O. Box 110339, Gainesville, FL 32611-0339

^* Corresponding author (ivezenwa{at}ifas.ufl.edu)

Received for publication January 8, 2004. Low levels of available S in soils may limit bahiagrass (Paspalum notatum Flugge) growth in Florida. To characterize the response of bahiagrass to S fertilizer, we annually applied a factorial combination of four N (N₀–N₂₅₅ = 0, 85, 170, and 255 kg ha^–1, respectively) and S (S₀–S₂₈₅ = 0, 95, 190, and 285 kg ha^–1, respectively) levels to a >40-yr-old pasture and measured forage yield, N and S concentrations, and N and S uptake at 35, 70, and 105 d after fertilization (DAF) over 3 yr. There were highly significant N x S fertilizer interactions for yield, concentration of N, and N uptake. In the absence of N, each of these responses increased with increasing rates of S, but as level of N increased, these three responses to S diminished. For example, with N₀, yield ranged from 1140 to 2640 kg dry matter (DM) ha^–1 over S₀ to S₂₈₅, but with N₂₅₅, yield did not vary (mean 3210 kg DM ha^–1). Up to 80 kg N ha^–1 yr^–1 came from apparent mineralization of soil organic matter (OM) as a result of addition of S to plots that received no N. At 35 DAF, concentrations of S in forage ranged from 2.6 to 3.8 g kg^–1 with S₀ to S₂₈₅. Maximum annual uptake was 28 kg S ha^–1 with recovery at 136 g S kg^–1 of applied S. With 56 to 67 kg N ha^–1 yr^–1, as is common on Florida ranches, fertilization with S may not be necessary on older pasture.

Abbreviations: AS, ammonium sulfate • DAF, days after fertilization • DM, dry matter • N_x, nitrogen application at x kg N ha^–1 • OM, organic matter • S_x, sulfur application at x kg S ha^–1

This article has been cited by other articles:

				Y. C. Newman, S. Agyin-Birikorang, M. B. Adjei, J. M. Scholberg, M. L. Silveira, J. M. B. Vendramini, J. E. Rechcigl, L. E. Sollenberger, and M. Chrysostome Enhancing Phosphorus Phytoremedation Potential of Two Warm-Season Perennial Grasses with Nitrogen Fertilization Agron. J., November 1, 2009; 101(6): 1345 - 1351. [Abstract] [Full Text] [PDF]

				Y. C. Newman, S. Agyin-Birikorang, M. B. Adjei, J. M. Scholberg, M. L. Silveira, J. M. B. Vendramini, J. E. Rechcigl, and L. E. Sollenberger Nitrogen Fertilization Effect on Phosphorus Remediation Potential of Three Perennial Warm-Season Forages Agron. J., August 31, 2009; 101(5): 1243 - 1248. [Abstract] [Full Text] [PDF]