Full TGIF Record # 149818
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Author(s):Brauen, S. E.; Stahnke, G. K.; Chapman, E.; Cogger, C.; Chastagner, G.; Johnson, W. J.; Ingram, R.; Hopkins, J.
Author Affiliation:Brauen: Turfgrass Scientist and Research and Extension Coordinator; Stahnke: Extension/ Assistant Agronomist; Chapman: Graduate Student; Cogger: Associate and Extension Soil Scientist; Chastagner: Plant Pathologist; Johnston: Turfgrass Scientist and Assistant Professor; Ingram: Research Technologist; Hopkins: Service Technologist, Washington State University
Title:How much nitrate is leached from sand and modified sand root zones?
Meeting Info.:Puyallup, WA: June 8-9, 1993
Source:1993 Turfgrass Field Day [Washington State University]. 1993, p. 7-14.
# of Pages:8
Publishing Information:Puyallup, WA: Washington State University Puyallup Research and Extension Center
Abstract/Contents:"Nitrate-N leached from putting turf during the first three months after seeding from pure sand profiles was as much as six times greater than the nitrate-N leached from sand profiles modified with peat moss. The quantity of nitrate-N leached was reduced by applying fertilizer more frequently and by reducing the quantity applied. The use of modified sand growing medium, moderate levels of N application and frequent, light application of N combined to reduce the N leached from 12% to 3% of applied N. The early data clearly show that an 'extra effort' approach as compared to an 'as usual' approach to sand green fertilization can reduce the potential losses of nitrate-N from sand growing medium to very low levels. This approach involved the best use of four factors: 1) Moderate rather than excessive use of N; 2) application of N with higher frequency and with lower quantities per application; 3) use of modified sand rooting medium rather than pure sand and 4) selecting the appropriate combination of slow release N sources and soluble sources that provide functional putting green turf during the cool, wet season."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Brauen, S. E., G. K. Stahnke, E. Chapman, C. Cogger, G. Chastagner, W. J. Johnston, et al. 1993. How much nitrate is leached from sand and modified sand root zones?. Turfgrass Field Day [WA]. p. 7-14.
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