| |
| Publication Type:
| Refereed |
|---|
| Author(s): | Chapman, J. E.;
Brauen, S. E.;
Stahnke, G. K.;
Johnston, W. J. |
|---|
| Author Affiliation: | Washington State Univ., Puyallup, WA |
|---|
| Title: | Comparison of nitrate ion specific electrode, segmented flow analysis techniques for determining nitrate levels in putting green |
|---|
| Meeting Info.: | 7th International Turfgrass Society Research Conference, Palm Beach, FL, USA, 18-24 July, 1993 |
|---|
| Source: | International Turfgrass Society Research Journal. Vol. 7, 1993, p. 560-564. |
|---|
| Publishing Information: | Overland Park, KS: INTERTEC Publishing Corp. |
|---|
| # of Pages: | 5 |
|---|
| Keywords: | TIC Keywords: Sand-based golf greens; Leaching; Ions; Groundwater monitoring; Agrostis stolonifera; Nitrates; Analytical methods
|
|---|
| Abstract/Contents: | "Nitrate ion specific electrodes (ISE) are commonly used to determine nitrate-N content in soil water and extracts under field conditions due to their portability, rapidity, and ease of use. Problems exist, however, in determining accurate measurements of nitrate-N at very low or very high levels. Automated colorimetric nitrate-n analysis using cadmium reduction is an Environmental Protection Agency (E. P. A.) approved method for laboratory analysis of nitrate-N in ground and waste waters. An automated version of this test utilizes segmented flow analysis (SFA). A study was done comparing results from these two methods by monitoring differences in nitrate-N content in leachate from sand-based putting greens. The objective was to verify the accuracy of the nitrate ion specific electrode for use in the field by turf professionals as a tool to monitor possible nitrate leachate in areas prone to leaching. Lysimeters were constructed similar to United States Golf Association (USGA) specificaitons for sand-based putting greens, lined with chlorosulfonated polyethylene reinforced liners, fitted with drainage ports for leachate collection, and seeded to 'Putter' creeping bentgrass (Agrostis palustris Huds.). Leachate samples were collected and analyzed for nitrate-N by ISE and by SFA. Correlation between ISE and SFA methods were high (r>/0.93). Frequent calibration using known samples with similar concentration to those of the leachates provided highly reliable values. The ISE could be used effectively by turf managers in monitoring the impact of fertilization practices in environmentally sensitive areas. The SFA is E. P. A. approved, but not readily available for field use." |
|---|
| Language: | English |
|---|
| References: | 5 |
|---|
| See Also: | Other items relating to: LEACH |
|---|
| Note: | "Chapter 79"
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Chapman, J. E., S. E. Brauen, G. K. Stahnke, and W. J. Johnston. 1993. Comparison of nitrate ion specific electrode, segmented flow analysis techniques for determining nitrate levels in putting green. Int. Turfgrass Soc. Res. J. 7:p. 560-564. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=28113 |
| If there are problems with this record, send us feedback about record 28113. |
| Choices for finding the above item: |
|---|
| 
MSU catalog number: SB 433 .I522 v.7 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
