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DOI: | 10.2134/agronj2006.0200 |
Web URL(s): | https://dl.sciencesocieties.org/publications/aj/articles/99%20/3/707 Last checked: 11/02/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/aj/pdfs/99/3/707 Last checked: 11/04/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Silveira, Maria L.;
Haby, Vincent A.;
Leonard, Allen T. |
Author Affiliation: | Silveira: University of Florida, Range Cattle Research and Education Center, Ona, Florida; Haby and Leonard: Texas Agricultural Experiment Station, Texas A&M University System, Overton, Texas |
Title: | Response of coastal bermudagrass yield and nutrient uptake efficiency to nitrogen sources |
Section: | Nitrogen Management Other records with the "Nitrogen Management" Section
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Source: | Agronomy Journal. Vol. 99, No. 3, May/June 2007, p. 707-714. |
Publishing Information: | Madison, WI: American Society of Agronomy |
# of Pages: | 8 |
Keywords: | TIC Keywords: Cynodon dactylon; Nutrient uptake; Nitrogen; Dry weight; Fertilizers; Soil acidity; Nitrogen efficiency
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Abstract/Contents: | "Nitrogen is an important agronomic input for bermudagrass production in the southern USA. Fertilizers that can efficiently provide N to grass pastures and hay meadows are an important issue because of increasing costs and environmental problems associated with N losses. This experiment was designed to determine the effectiveness of various N sources on 'Coastal' bermudagrass [Cynodon dactylon (L.) Pers.] production and N uptake efficiency. Nitrogen was applied at 0, 45, 90, and 135 kg ha-1 harvest-1 as ureaammonium nitrate (UAN), urea, ammonium nitrate (AN) and ammonium sulfate (AS) on Gallime (Glossic Paleudalf) and Lilbert (Plinthic Paleudult) soils. Mixtures of S with UAN and of Ca and B with urea were also evaluated. Bermudagrass was periodically harvested and subsampled for total N analysis. At termination of the study soil samples were collected for pH and extractable NO3-N analyses. Bermudagrass yield responses to N sources were significant only in the Gallime soil. In this soil, AN and AS increased yields and resulted in greater N uptake compared to urea and UAN. Lilbert soil showed no effect of N sources on dry matter (DM) production. There was a yield response to N rates and maximum bermudagrass production was generally achieved at the 90 kg ha-1 N rate regrowth-1. Fertilizer efficiency declined as the N rate was increased. Soil acidity increased in response to N application, particularly for the AS treatments. Selection of N sources and rates should be carefully planned to avoid detrimental effects on soil acidity and, consequently, fertilizer efficiency." |
Language: | English |
References: | 36 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Silveira, M. L., V. A. Haby, and A. T. Leonard. 2007. Response of coastal bermudagrass yield and nutrient uptake efficiency to nitrogen sources. Agron. J. 99(3):p. 707-714. |
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| DOI: 10.2134/agronj2006.0200 |
| Web URL(s): https://dl.sciencesocieties.org/publications/aj/articles/99%20/3/707 Last checked: 11/02/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/aj/pdfs/99/3/707 Last checked: 11/04/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: S 22 .A45 |
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