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| Web URL(s): | http://www.tandfonline.com/doi/abs/10.1080/00103628909368207
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| Author(s): | Waddington, D. V.;
Landschoot, P. J.;
Hummel, N. W. Jr. |
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| Author Affiliation: | Department of Agronomy, The Pennsylvania State University, University Park, PA |
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| Title: | Response of Kentucky bluegrass turf to fertilizers containing dicyandiamide |
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| Source: | Communications in Soil Science and Plant Analysis. Vol. 20, No. 19/20, December 1989, p. 2149-2170. |
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| Publishing Information: | New York, NY: Marcel Dekker |
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| # of Pages: | 22 |
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| Keywords: | TIC Keywords: Fertilization; Fertilizers; Dicyandiamide; Nitrification inhibitors; Slow-release fertilizers
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| Abstract/Contents: | "Nitrogen fertilization is of major importance in maintaining turfgrass stands. Although rates and sources of N may vary on different turfgrass areas, efficient utilization of N applications is always important. This research was conducted in the field to determine the value of dicyandiamide (DCD) as a nitrification inhibitor and as a slow-release N source in turfgrass fertilization. The inhibitory effect was studied by applying ammonium sulfate (AS), urea, and a complete fertilizer alone and with 10 and/or 15% of the N replaced with DCD-N to stands of Kentucky bluegrass. Single and split rates totaling up to 196 kg N/ha/yr were used. Soil NO3-N and NH4-N analyses sometimes indicated decreased nitrification; however, turfgrass yield and color were essentially unaffected by these rates of DCD. To assess the slow-release effect of DCD, various ratios of AS-N or urea-N to DCD-N were used to fertilize turf in two experiments. Initial response decreased as the proportion of DCD-N increased, and in one experiment, a residual effect was noted a year after application when DCD comprised 80 or 100% of the N. Severe, but short-lived, phytotoxicity from DCD was noted in the other experiment when more than 40% of the N was from DCD. Under the conditions of this research, DCD appeared to have little value in increasing the efficiency of N fertilization." |
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| Language: | English |
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| References: | 23 |
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| Note: | Reprint appears in Turfgrass Research Results 1989 [Penn State], 1989, p. 55-73
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Waddington, D. V., P. J. Landschoot, and N. W. Jr. Hummel. 1989. Response of Kentucky bluegrass turf to fertilizers containing dicyandiamide. Commun. Soil. Sci. Plant Anal. 20(19/20):p. 2149-2170. |
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| Web URL(s):
http://www.tandfonline.com/doi/abs/10.1080/00103628909368207
Last checked: Item not verified
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 590 .C54 |
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