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Fastlink of full TGIF record #67056

The fastlink for this record is: https://tic.msu.edu/tgif/flink?recno=67056
Full TGIF Record # 67056
Item 1 of 1
Publication Type:
i
Newsletter
Content Type:Abstract or Summary only
Author(s):Kauffman, Gordon
Author Affiliation:Graduate Student, Department of Agronomy, The Pennsylvania State University
Title:The effects of mechanical renovation on phosphorus and sediment runoff from two turfgrasses
Section:Penn State report
Other records with the "Penn State report" Section
Source:The Keynoter. Vol. 28, No. 3, July 2000, p. 1.
# of Pages:1
Publishing Information:Lemont, PA: The Pennsylvania Turfgrass Council, Inc.
Keywords:TIC Keywords: Surface runoff; Phosphorus; Sediment control; Renovation; Agrostis stolonifera; Lolium perenne; Golf fairways; Phosphorus recovery; Nutrient recovery; Comparisons; Turf recovery; Erosion
Abstract/Contents:Limited research has been conducted on the runoff of nutrients and sediment from disturbed turfgrass sites as opposed to undisturbed sites. This study was conducted to determine how turfgrass renovation and recovery over time influence total dissolved inorganic phosphorus runoff and sediment transport. Six sloped (9-14%) plots, each 112m², consisted of either creeping bentgrass (Agrostis palustris Huds.) or perennial ryegrass (Lolium perenne L.) maintained as golf course fairways. On four selected dates, plots were core cultivated and fertilized with a (19-2-5) starter fertilizer at a rate of 9.8 g P₂O₅m⁻². Within 24 h following fertilization, and on other selected dates, plots were irrigated at a rate of 152 mm of water hr⁻¹ in order to cause runoff. Aqueous runoff samples were collected, sediment yield determined, and hydrographs generated. Aqueous runoff was analyzed for total reactive phosphorus (TRP) using the Murphey-Riley method. Sediment samples were dried, weighed, and analyzed for total adsorbed phosphorus using the EPA 3051 method. Soil samples were analyzed for available phosphorus using Mehlich-3 method in order to predict potential bioavailable phosphorus (BAP) export in the sediment portion of runoff. One additional experiment was conducted in the greenhouse as a supplement to the field work. This study provided insight into the fate of phosphorous from a mass balance perspective. The experiment showed that phosphorous applied to an establishment site is mainly used by the plant and adsorbed to soil colloids as opposed to leaching and runoff. TRP concentrations in runoff significantly decreased over time and had the highest concentrations, 6mg L⁻¹, within 24 hrs following renovation. A trend whereby perennial ryegrass produced more TRP than creeping bentgrass was observed, including one significant evaluation. Sediment loading rates decreased over time as a result of turf recovery, and did not exceed 0.35 kg ha⁻¹. Total adsorbed phosphorus export was low, not exceeding 0.89 g ha⁻¹, and BAP export was predicted to be low based on soil test relationships. As a consequence, the low phosphorus loading on sediment and minimal erosion found in this study lead me to conclude that the amount of phosohorus that was transported was not considered a threat to surface water.
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kauffman, G. 2000. The effects of mechanical renovation on phosphorus and sediment runoff from two turfgrasses. Keynoter. 28(3):p. 1.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=67056
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