Full TGIF Record # 38268
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DOI:10.21273/HORTSCI.36.6.1123
Web URL(s):https://journals.ashs.org/hortsci/view/journals/hortsci/36/6/article-p1123.xml
    Last checked: 11/13/2019
    Requires: PDF Reader
Publication Type:
i
Refereed
Author(s):Mancino, Charles F.; Petrunak, Dianne; Wilkinson, Douglas
Author Affiliation:Department of Agronomy, The Pennsylvania State University, University Park, PA
Title:Loss of putting greens-grade fertilizer granules due to mowing
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 36, No. 6, October 2001, p. 1123-1126.
Publishing Information:Alexandria, VA: American Society for Horticultural Science
# of Pages:4
Keywords:TIC Keywords: Fertilizers; Nitrate losses; Mowing; Clippings; Potassium; Nitrogen; Agrostis stolonifera; Golf greens; Granular fertilizers; Liquid fertilizers; Irrigation; Fate
Abstract/Contents:"The loss of fertilizer granules collected in turf clippings during routine putting green mowing has not been determined. The objective of this study was to quantify the amounts of greens-grade granular potassium (K) and nitrogen (N) fertilizers collected during the routine mowing of a 'Pennlinks' creeping bentgrass (Agrostis palustris Huds.) putting green. In the first study, five K-containing granular fertilizers were applied at K rates of 2.43 and 4.86 gĀ·m-2. A second study was also performed with six granular N-containing fertilizers and one liquid N fertilizer applied at an N rate of 4.86 gĀ·m-2. Both studies were performed twice. Irrigation (6.4 mm) was applied immedately after each fertilizer application and again on the following day. These two irrigations, plus additional irrigation and rain, resulted in each study receiving about 2.54 cm of water over each nine-day study period. Mowing and clipping collection using a walk-behind greens mower set to cut at 3.96 mm began two days after treatment (2 DAT) and continued until 9 DAT. The clippings were oven-dried and separated from the fertilizer using a small pneumatic seed cleaner. Collected fertilizer was weighed and expressed as a percentage of the fertilizer applied. Liquid N fertilizer loss was estimated to be the difference between clipping N content of treated plots and untreated controls. Total K fertilizer loss was: UHS Signature 15-0-30 (15.3% to 22.9%) > Lebanon Isotek 11-3-22 (8.7% to 10.7%) > Scott's Contec 13-2-26 (4.9% to 7.4%) > Lesco Matrix 12-0-22 (0.1% to 0.4%) = Lesco Matrix 5-0-28 (0.1% to 0.5%). Signature was the only fertilizer significantly affected by rate and a greater percentage of loss occurred at the lower K application rate. Most loss occurred during the first and second mowing events with small amounts of fertilizer found in clippings from later mowings. The two Lesco materials were not found in clippings after the first mowing. Nitrogen fertilizer granule loss was also greatest with the first and second mowings. Total percentage of losses were IBDU 31-0-0 (75.4%) > Polyon 41-0-0 (70.8%) > Milorganite 6-2-0 (55.7%) > Nutralene 40-0-0 (47.0%) > UHS Signature (19.3%) > Isotek 11-3-22 (9.5%) > N-Sure Pro 30-0-0 (1.9%). In both studies, fertilizer loss appeared to be most related to water-solubility of the fertilizer, but size and denstiy might also be factors."
Language:English
References:12
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Mancino, C. F., D. Petrunak, and D. Wilkinson. 2001. Loss of putting greens-grade fertilizer granules due to mowing. HortScience. 36(6):p. 1123-1126.
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DOI: 10.21273/HORTSCI.36.6.1123
Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/36/6/article-p1123.xml
    Last checked: 11/13/2019
    Requires: PDF Reader
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