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Web URL(s): | https://scisoc.confex.com/scisoc/2022am/meetingapp.cgi/Paper/143202 Last checked: 02/02/2023 Requires: JavaScript; HTML5 |
Publication Type:
| Report |
Content Type: | Abstract or Summary only |
Author(s): | McLoughlin, Patrick;
Arevalo Alvarenga, Andrea Fernanda;
Schiavon, Marco;
Sierra Augustinus, I. Alejandra |
Author Affiliation: | McLoughlin: Presenting Author and University of Florida; Arevalo Alvarenga and Schiavon: University of Florida; Sierra Augustinus: FLREC |
Title: | Nutrient leaching from warm-season turfgrass systems in association with water quality and nitrogen sources |
Section: | Turfgrass and water conservation and management oral (includes student competition) Other records with the "Turfgrass and water conservation and management oral (includes student competition)" Section
C05 turfgrass science Other records with the "C05 turfgrass science" Section
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Meeting Info.: | Baltimore, Maryland: November 6-9, 2022 |
Source: | ASA, CSSA, SSSA International Annual Meeting. 2022, p. 143202. |
Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America] |
# of Pages: | 1 |
Abstract/Contents: | "Misapplied turfgrass fertilization may contribute to pollution in the form of leaching, when nutrient-rich leachate moves past plant roots and incorporates into freshwater bodies. Use of reclaimed effluent water has been proposed as a water conservation strategy, however, water quality may play a role in how well fertilizers can be absorbed by plants, therefore increasing nutrient leaching. To better understand this phenomenon, a greenhouse study was conducted at the University of Florida Research and Education Center comparing root architecture and nutrient leaching from 'CitraBlue' St. Augustinegrass [Stenotaphrum secundatum (Walter) Kuntze] and 'Celebration' bermudagrass (Cynodon dactylon L. Pers.) irrigated with either potable water or reclaimed effluent water and fertilized at 5 g N m-2 with water-soluble ammonium suflate (NH4)2SO4 (21-0-0) or 65% controlled-release fertilizer (42-0-0) compared to a non-fertilized control. Turfgrass was grown in PVC lysimeters filled with 100% Mason sand and drilled at the bottom to allow for leachate collection. Leachate was collected from lysimeters twice per week for six weeks and evaluated for NO2, NO3, NH3 and PO4 content. Roots were collected and quantified using WinRhizo 2009c software, as well as oven-dried to determine dry weight. Soluble fertilizer applications increased nitrogen leaching in both species during both seasons, and reclaim effluent water was responsible for higher PO4 leaching. Seasonality played a role in nutrient uptake, with more leaching observed in the Fall than the Spring No differences were found in root architecture in both species, regardless of N source or water quality. Results suggest that effluent water could be used to irrigate St. Augustinegrass if turf is fertilized with controlled-release fertilizer without environmental concerns. More research is needed to pinpoint best management practices for bermudagrass when reclaimed effluent water is used for irrigation." |
Language: | English |
References: | 0 |
Note: | "109-2" This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): McLoughlin, P., A. F. Arevalo Alvarenga, M. Schiavon, and I. A. Sierra Augustinus. 2022. Nutrient leaching from warm-season turfgrass systems in association with water quality and nitrogen sources. Agron. Abr. p. 143202. |
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