Full TGIF Record # 52291
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Web URL(s):http://www.tandfonline.com/doi/abs/10.1080/00103629509369393
    Last checked: 10/13/2015
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Author(s):Starrett, S. K.; Christians, N. E.; Austin, T. A.
Author Affiliation:Civil Engineering Department, Kansas State University, Manhattan, KS 66506; Horticulture Department, Iowa State University, Ames, IA 50011; Civil and Construction Engineering Department, Iowa State University, Ames, IA 50011
Title:Fate of amended urea in turfgrass biosystems
Source:Communications in Soil Science and Plant Analysis. Vol. 26, No. 9/10, May 1995, p. 1595-1606.
# of Pages:12
Publishing Information:New York, NY: Marcel Dekker
Keywords:TIC Keywords: Environmental pollution; Groundwater contamination; Irrigation rates; Nitrogen fate; Poa pratensis; Subsurface hydrology; Turfgrass industry trends; Urea hydrolysis
Abstract/Contents:"The fate of nitrogen (N) has been studied under several agronomic crops and agricultural profiles, but relatively little information has been collected from areas managed as turfgrass. The turfgrass industry has become the focus of environmental concerns in recent years and is often identified as a source of ground water contaminate. The objectives of this study were to: i) investigate the hydrology of 20-cm diameter by 50-cm deep undisturbed soil columns covered with a Kentucky bluegrass (Poa pratensis L.) turf under a heavy (one 2.54-cm application) and a light (four 0.64-cm applications) irrigation regime, and to ii) quantify the fate of ⁵N-labeled urea when it is applied to an undisturbed soil columns having intact macropores. Clipping, verdure, and thatch/mat samples were taken from each column, and the soil was excavated in 10-cm layers at the end of the 7-day test period. A glass collection chamber was used to collect volatilized N and a plastic bag for leachate collection. All samples were analyzed for atom % ⁱ⁵N. Volatilization of N was negligible because irrigation was applied immediately after the application of N. The heavy irrigation regime significantly increased the transport of N below 30 cm by five times, compared to the light irrigation regime. Eighty-five percent of the N found in the leachate from the 50-cm columns was in the urea form indicating that macropores may have played a major role in transport of surface applied through the soil profile."
See Also:See also manuscript Fate of 15N Amended Urea in Turfgrass Biosystems, [1995], R=192089 R=192089

See also related article "Fate of 15N amended urea in turfgrass biosystems" 1995 Iowa Turfgrass Research Report, 1995, p. 91, R=51120 R=51120
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Starrett, S. K., N. E. Christians, and T. A. Austin. 1995. Fate of amended urea in turfgrass biosystems. Commun. Soil. Sci. Plant Anal. 26(9/10):p. 1595-1606.
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