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| DOI: | 10.2134/agronj2018.12.0783 |
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| Web URL(s): | https://dl.sciencesocieties.org/publications/aj/articles/111/4/1741
Last checked: 08/14/2019
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| Publication Type:
| Refereed |
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| Author(s): | Woli, P.;
Rouquette, F. M. Jr.;
Long, C. R. |
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| Author Affiliation: | Texas A&M AgriLife Research, Overton, TX |
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| Title: | Investigating DSSAT: Bermudagrass response to nitrogen as influenced by soil and climate |
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| Section: | Biometry, modeling, and statistics
Other records with the "Biometry, modeling, and statistics" Section
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| Source: | Agronomy Journal. Vol. 111, No. 4, July/August 2019, p. 1741-1751. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy |
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| # of Pages: | 11 |
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| Related Web URL: | https://dl.sciencesocieties.org/publications/aj/abstracts/111/4/1741
Last checked: 08/14/2019
Notes: Abstract only
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| Keywords: | TIC Keywords: Biomass; Climatic factors; Cynodon; Cynodon dactylon; El NiƱo; La NiƱa; Models; Nitrogen response; Water holding capacity
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| Cultivar Names: | Coastal |
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| Abstract/Contents: | "The perennial forage model in the Decision Support System for Agrotechnology Transfer (DSSAT) suite is a newly developed model. Studies involving the use of the forage model for predicting biomass production for a perennial grass such as bermudagrass [Cynodon dactylon (L.) Pers.] are few. By conducting a series of simulation investigations, we examined the DSSAT forage model for simulating 'Coastal' bermudagrass biomass response to N as affected by soil and climate variability in the southern United States. The simulation results indicated that the DSSAT forage model predicted the biomass response to N reasonably well. However, the accuracy of simulations was linked primarily to the water holding capacity (WHC) of the soil used. A seemingly small difference in WHC, such as 0.03 mm mm-1, made a significant difference in the biomass response to N rate by a margin of about 3 Mg ha-1. These results indicated that providing more leverage to WHC than to the soil name, texture, or type being used for simulations could provide more accurate results. The simulations further indicated that bermudagrass production in the southern United States could be impacted by El NiƱo-Southern Oscillation (ENSO), with the La NiƱa and El NiƱo phases providing above-normal and below-normal production, respectively. The rate of increase in biomass with an increase in N rate was higher under La NiƱa than under El NiƱo. The impact of ENSO was greater on a soil with a coarser texture." |
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| Language: | English |
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| References: | 37 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Woli, P., F. M. Jr. Rouquette, and C. R. Long. 2019. Investigating DSSAT: Bermudagrass response to nitrogen as influenced by soil and climate. Agron. J. 111(4):p. 1741-1751. |
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| DOI: 10.2134/agronj2018.12.0783 |
| Web URL(s):
https://dl.sciencesocieties.org/publications/aj/articles/111/4/1741
Last checked: 08/14/2019
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/aj/pdfs/111/4/1741
Last checked: 08/14/2019
Requires: PDF Reader
Access conditions: Item is within a limited-access website
Notes: Direct download |
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MSU catalog number: b2212646a |
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