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Publication Type:
| Newsletter Proceedings |
Author(s): | Brauen, S. E.;
Stahnke, G. K.;
Cogger, C.;
Chastagner, G.;
Johnston, W. J.;
Chapman, E. |
Author Affiliation: | Washington State University, Puyallup Research and Extension Center |
Title: | Puyallup lysimeters: measuring nitrate movement in sand and modified sand root zones |
Source: | The Turf Line News. Vol. 116, June/July 1993, p. 10-12, 14-16. |
Publishing Information: | [British Columbia]: Western Canada Turfgrass Association |
# of Pages: | 6 |
Keywords: | TIC Keywords: Sand; Nitrates; Fertilization; Leaching; Nitrate losses; Groundwater contamination; Root zone
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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 frquently 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 uses 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." |
Language: | English |
References: | 1 |
See Also: | Other items relating to: GRDWTR |
Note: | "Presentation given by the senior author." Pictures Figures Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Brauen, S. E., G. K. Stahnke, C. Cogger, G. Chastagner, W. J. Johnston, and E. Chapman. 1993. Puyallup lysimeters: measuring nitrate movement in sand and modified sand root zones. Turf Line News. 116:p. 10-12, 14-16. |
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