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| Web URL(s): | https://listings.lib.msu.edu/illtc/1973.pdf#page=12
Last checked: 01/13/2017
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Notes: Item is within a single large file |
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| Publication Type:
| Proceedings |
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| Author(s): | Waddington, Donald V. |
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| Author Affiliation: | Associate Prof., Dept. of Agronomy, Pennsylvania State University |
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| Title: | Nitrogen fertilization research at the Pennsylvania State University: [V. Evaluation of slow-release fertilizers on Pennpar creeping bentgrass] |
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| Meeting Info.: | November 29-30, 1973 |
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| Source: | Proceedings of the 14th Illinois Turfgrass Conference. Vol. 14, 1973, p. 10-11. |
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| Publishing Information: | Urbana-Champaign, IL: University of Illinois, Cooperative Extension Service, College of Agriculture; and the Illinois Turfgrass Foundation |
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| Keywords: | TIC Keywords: Fertilizers; Clipping weight; Agrostis stolonifera; IBDU; Urea; Nitrogen fertilizers; Slow-release fertilizers
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| Abstract/Contents: | "In May, 1971, a study was initiated on Pennpar creeping bentgrass putting green turf to evaluate single applications of four slow-release fertilizers: Osmocote resin coated fertilizer (19-6-13); sulfur coated urea, an experimental product from the Tennessee Valley Authority, (33.5-0-0); IBDU (31-0-0); Uramite (38-0-0). The area was aerified, fertilized at a rate of 6 lb N/1000 sq ft, and topdressed. A urea (45-0-0) treatment consisting of 10 applications of 0.6 lbs N/1000 sq ft at 2 week intervals was also used. Treatments were repeated in 1972 and 1973. Greatest initial response came from IBDU. This finding was contrary to the delay in response observed on bluegrass turf. No doubt the release of N under putting green conditions was enhanced by a wetter environment due to more frequent irrigation and also to the placement of the fertilizer in the soil following aerification. The resin coated fertilizer was slow to start in 1971 and 1972, but after about six weeks its response was equal to or greater than that of the other slow-release materials. Release of nitrogen from this material increases with temperature, and warmer soil temperatures were probably the main reason for greater early response in 1973. Results with sulfur-coated urea were similar to those from the resin-coated fertilizer. In 1971 initial response from Uramite was slow, but residual effects were apparent in 1972 and 1973 when early response was similar to that of other materials. A single application of these slow release fertilizers did not give acceptable season-long performance. In the fall they gave lower yields and poorer color than the urea treatment." |
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| Language: | English |
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| References: | 0 |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Waddington, D. V. 1973. Nitrogen fertilization research at the Pennsylvania State University: [V. Evaluation of slow-release fertilizers on Pennpar creeping bentgrass]. p. 10-11. In Proceedings of the 14th Illinois Turfgrass Conference. November 29-30, 1973. Urbana-Champaign, IL: University of Illinois, Cooperative Extension Service, College of Agriculture; and the Illinois Turfgrass Foundation. |
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| Web URL(s):
https://listings.lib.msu.edu/illtc/1973.pdf#page=12
Last checked: 01/13/2017
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 433 .A1 I4 no.14 |
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