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| Web URL(s): | https://listings.lib.msu.edu/illtc/1973.pdf#page=8
Last checked: 01/13/2017
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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: [I. Nitrogen source test on Merion Kentucky bluegrass] |
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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. 6-8. |
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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; Poa pratensis; IBDU; Urea; Organic fertilizers; Nitrogen fertilizers
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| Abstract/Contents: | A study was undertaken to evaluate the effects of 8 nitrogen sources on Merion Kentucky bluegrass quality measured by clipping yields and color ratings. The N sources tested were: IBDU (30-0-0), Urex (29-0-0), Uramite (38-0-0), ADM (36-0-0), Milorganite (6-3-0), Urea (45-0-0), 18-6-12 IBDU, and 18-6-12 UF. In spring 1966, these materials were applied at rates equivalent to 3 to 5 lbs N/1000 sq ft per season in 1,2, or 3 applications, except for urea 1/3 lb N/1000 sq ft applied 9 times (every two weeks), and uramite 7 lbs N/1000 sq ft, applied once in the spring. Combinations of fertilizers, rate and frequency of application gave 24 total treatments. Urex, ADM, and 18-6-12 formulations gave similarly quick responses. Responses from these materials were quicker and greater than from IBDU, Uramite, and Milorganite. IBDU had good controlled-release characteristics, but response after fertilization was slow and delayed for several weeks. During the first two years of this study, the clippings were dried and analysed for nitrogen so that the nitrogen recovered in the clippings could be calculated. The following relationships in nitrogen recovery generally held true: ADM = urea = Urex > Milorganite = Uramite; ADM = urea > IBDU; Urex >= IBDU > Milorganite = Uramite; 18-6-12 IBDU > 18-6-12 UF. Clippings yield relationships were similar to those of N recovery for the entire 7 year period. Sources containing water insoluble N gave relatively low response early, but eventually approached or equalled those obtained from soluble sources. |
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| Language: | English |
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| References: | 0 |
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| Note: | Table |
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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: [I. Nitrogen source test on Merion Kentucky bluegrass]. p. 6-8. 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=8
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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