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DOI: | 10.2134/agronj2015.0585 |
Web URL(s): | https://dl.sciencesocieties.org/publications/aj/articles/108/4/1542 Last checked: 08/03/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/aj/pdfs/108/4/1542 Last checked: 08/03/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Anderson, William;
Parker, Myron B.;
Knoll, Joseph Edward;
Lacy, R. Curt |
Author Affiliation: | Anderson and Knoll: USDA/ARS Crop Genetics and Breeding Research Unit; Parker: Crop and Soils, University of Georgia, Tifton, GA; Lacy: Mississippi State University Extension, Stoneville, MS |
Title: | Fertilization ratios of N-P2O5-K2O for Tifton 85 bermudagrass on two coastal plain soils |
Section: | Crop economics, production & management Other records with the "Crop economics, production & management" Section
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Source: | Agronomy Journal. Vol. 108, No. 4, July/August 2016, p. 1542-1551. |
Publishing Information: | Madison, Wisconsin: American Society of Agronomy |
# of Pages: | 10 |
Related Web URL: | https://dl.sciencesocieties.org/publications/aj/abstracts/108/4/1542 Last checked: 08/03/2016 Notes: Abstract only |
Keywords: | TIC Keywords: Coastal soils; Cynodon dactylon; Cynodon nlemfuensis; Fertilization rates; Fertilizer evaluation; Nitrogen fertilization; Nutrient uptake; Phosphorus; Potassium
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Cultivar Names: | Tifton 85 |
Abstract/Contents: | "Bermudagrass [Cynodon dactylon (L.) Pers.] is widely grown throughout the southeastern United States and many other countries for forage. Tifton 85, a hybrid between C. dactylon and C. nlemfuensis, is currently the recommended cultivar for grazing and hay. This study was conducted to determine the response of Tifton 85 to six rates of N fertilization (224, 336, 448, 560, 672, and 784 kg ha-1) and three rates of PK fertilization (50, 100, and 150% replacement of P and K removal) on two different soils, Carnegie (fine, kaolinitic, thermic Plinthic Kandiudult) and Fuquay (loamy, kaolinitic, thermic Arenic Plinthic Kandiudult), for 4 yr. In a randomized split-plot design, whole plots were N rates with PK rates randomized within whole plots. The optimal fertilization rate to provide maximum profits was determined. Though yields began to level off only at the 560 kg ha-1 N application rate, rates from 224 to 448 kg ha-1 N with 100% replacement of P and K uptake resulted in maximum economic return. At these N rates, based on actual nutrient uptake, the N-P2O5-K2O ratio for fertilization of Tifton 85 should be approximately 4-1-5. At 336 to 448 kg ha-1 N, a grower could expect approximately 19.6 to 23.0 Mg ha-1 yr-1 hay at 150 g kg-1 moisture. Crude protein (CP) concentration and in vitro dry matter digestibility (IVDMD) of the harvested forage both responded positively to increasing rates of N application beyond the economically optimum rates." |
Language: | English |
References: | 16 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Anderson, W., M. B. Parker, J. E. Knoll, and R. C. Lacy. 2016. Fertilization ratios of N-P2O5-K2O for Tifton 85 bermudagrass on two coastal plain soils. Agron. J. 108(4):p. 1542-1551. |
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| DOI: 10.2134/agronj2015.0585 |
| Web URL(s): https://dl.sciencesocieties.org/publications/aj/articles/108/4/1542 Last checked: 08/03/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/aj/pdfs/108/4/1542 Last checked: 08/03/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b2212646a |
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