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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/1993jou572.pdf
Last checked: 09/29/2008
Requires: PDF Reader |
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| Access Restriction: | Certain MSU-hosted archive URLs may be restricted to legacy database members. |
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| Publication Type:
| Refereed |
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| Author(s): | Waddington, D. V.;
Landschoot, P. J.;
Clark, J. M.;
Fidanza, M. A. |
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| Author Affiliation: | Penn State |
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| Title: | Evaluation of liquid nitrogen sources and the urease inhibitor (N-(n-Butyl) thiophosphoric-triamide on Kentucky bluegrass turf |
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| Meeting Info.: | 7th International Turfgrass Society Research Conference, Palm Beach, FL, USA, 18-24 July, 1993 |
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| Source: | International Turfgrass Society Research Journal. Vol. 7, 1993, p. 572-579. |
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| Publishing Information: | Overland Park, KS: INTERTEC Publishing Corp. |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Fertilizer evaluation; N-butyl phosphorothioic triamide; Nitrogen fertilization; Poa pratensis; Thiophosphoric triamide; Urea fertilizers; Urease inhibitors; Volatility
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| Abstract/Contents: | "Surface applications of urea to turfgrasses can result in significant losses of nitrogen (N) through ammonia volatilization. Two approaches to limiting such losses are the use of liquid N sources containing a portion of the N as reacted urea and the use of a urease inhibitor with urea. In this 2-yr field study on Kentucky bluegrass (Poa pratensis L.), turfgrass response to both liquid and dry urea, alone and amended with the urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT), was assessed to determine if there is an advantage to using NBPT in the field. Nitrogen sources containing reacted urea, CORON and N-SURE, were also included. Nitrogen was applied at an annual rate of 196 kg ha-1 in two and four applications per season. Yield, color, N uptake, and phytotoxicity were used to assess turf response. Greater yields, darker color, slightly improved N uptake, and lower phytotoxicity were associated with dry applications. On some dates, NBPT additions increased turf yield color, and N uptake, however, greater phytotoxicity was also associated with NBPT treatments. Results were not supportive of routine use of NBPT with urea applications. CORON, N-SURE, and liquid urea gave similar yield, color and N uptake results. Less phytotoxicity occurred with CORON and N-SURE than with liquid urea, but not with dry urea." |
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| Language: | English |
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| References: | 11 |
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| Note: | "Chapter 81"
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Waddington, D. V., P. J. Landschoot, J. M. Clark, and M. A. Fidanza. 1993. Evaluation of liquid nitrogen sources and the urease inhibitor (N-(n-Butyl) thiophosphoric-triamide on Kentucky bluegrass turf. Int. Turfgrass Soc. Res. J. 7:p. 572-579. |
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https://archive.lib.msu.edu/tic/its/articles/1993jou572.pdf
Last checked: 09/29/2008
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MSU catalog number: SB 433 .I522 v.7 |
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