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| Web URL(s): | https://scisoc.confex.com/crops/2012am/webprogram/Paper72858.html
Last checked: 03/03/2017 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Zhang, Yao;
Qian, Yaling;
Mecham, Brent;
Parton, William |
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| Author Affiliation: | Zhang and Qian: Horticulture and Landscape Architecture; Parton: Colorado State University, Fort Collins, CO; Mecham: Irrigation Association, Falls Church, VA |
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| Title: | Development of best turfgrass management practices using Daycent model |
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| Section: | Ecology, water, soil, cultural and pest management of turf
Other records with the "Ecology, water, soil, cultural and pest management of turf" Section
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| Meeting Info.: | Cincinnati, Ohio: October 21-24, 2012 |
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| Source: | ASA, CSSA and SSSA Annual Meetings [2012]. 2012, p. 72858. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy and Crop Science Society of America and Soil Science Society of America |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Clipping weight; Cultural methods; Groundwater recharge; Ecosystems; Evapotranspiration; Nitrate losses; Poa pratensis; Soil temperature; Turf maintenance
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| Abstract/Contents: | "In order to predict the best management practices for the turf industry in Colorado, the DAYCENT ecosystem model was parameterized and applied on a turf ecosystem. In this study, the daily time step DAYCENT model was validated using field measured data of clipping yields, evapotranspiration (ET), deep percolation, nitrate leaching, and soil temperature from a three-year lysimeter study. The prediction of ET and deep percolation was acceptable for the three years (r > 0.6). The simulation result of clipping yield was improved compared to the monthly time step CENTURY ecosystem model, with r value increased from -0.32 to 0.74. The long-term irrigation effect on Kentucky bluegrass biomass and soil carbon and nitrogen was examined. The annual net production is predicted to drop by 50% as irrigation decreases from 100% potential evapotranspiration (PET) to 60% PET in this semi-arid region. The simulation result suggests that the annual fertilization rates should be gradually reduced to approximately half of the initial rate after 10 years for both moderately and highly managed turf, and the rates could be further reduced with increasing age of the turf stand." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhang, Y., Y. Qian, B. Mecham, and W. Parton. 2012. Development of best turfgrass management practices using Daycent model. Int. Ann. Meet. p. 72858. |
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| Web URL(s):
https://scisoc.confex.com/crops/2012am/webprogram/Paper72858.html
Last checked: 03/03/2017 |
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