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| DOI: | 10.2134/agronj2010.0470 |
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| Web URL(s): | https://dl.sciencesocieties.org/publications/aj/articles/103/3/751
Last checked: 11/02/2016
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Li, Deying;
Fang, Wenjuan;
Han, Liebao |
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| Author Affiliation: | Li: Department of Plant Sciences, North Dakota State University; Fang and Han: Institute of Turfgrass Science, Beijing Forestry University, Beijing, China |
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| Title: | Nitrogen fertilization influences shear strength and quality of Kentucky bluegrass sod grown on clay |
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| Section: | Soil, agronomy, & environmental quality
Other records with the "Soil, agronomy, & environmental quality" Section
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| Source: | Agronomy Journal. Vol. 103, No. 3, May/June 2011, p. 751-755. |
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| Publishing Information: | Madison, WI: American Society of Agronomy |
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| # of Pages: | 5 |
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| Related Web URL: | https://dl.sciencesocieties.org/publications/aj/abstracts/103/3/751
Last checked: 11/02/2016
Notes: Abstract only |
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| Keywords: | TIC Keywords: Clay soils; Fertilization rates; Fertilization timing; Mowing height; Nitrogen fertilization; Normalized Difference Vegetation Index; Poa pratensis; Quality evaluation; Seeding rate; Shear resistance; Sod production
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| Cultivar Names: | Rugby; NuBlue; NuGlade; Dragon |
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| Abstract/Contents: | "Shipment costs and easiness of handling sometimes make it necessary to produce sod on non-ideal soils, such as clay. The objective of this study was to test the effects of N rate and N-application timing, seeding rate, and mowing height on sod shear strength of Kentucky bluegrass (Poa pratensis L.) produced on a clayey soil under the climate conditions of the upper Midwest in the United States. A blend of four Kentucky bluegrass cultivars were seeded at 50 or 100 kg ha-1 in 2004 and 2005 and maintained at 4.5- or 7.5-cm mowing height. Annual N rates of 120 or 210 kg ha-1 were applied from April to September in different splits. Sod was harvested at 14 or 23 mo after seeding. By 14 mo after seeding, all N treatments had turfgrass visual quality above 6.0 except the unfertilized control and the 120 kg ha-1 yr-1 rate applied mainly in summer or spring. Sod shear strength reached a minimum acceptable level of 0.9 kg m-2 O104 about 23 mo after seeding. Highest sod shear strength (1.181.36 kg m-2 O104) with acceptable visual quality could be achieved through an N program of 8, 16, 24, 32, and 40 kg ha-1 in May, June, July, August, and September, respectively. Based on a 23-mo production time line, a seeding rate at 50 kg ha-1 and a 7.5-cm mowing height is recommended for economic reasons. Applying more than 40 kg ha-1 of N in June and July is not recommended." |
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| Language: | English |
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| References: | 20 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Li, D., W. Fang, and L. Han. 2011. Nitrogen fertilization influences shear strength and quality of Kentucky bluegrass sod grown on clay. Agron. J. 103(3):p. 751-755. |
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| DOI: 10.2134/agronj2010.0470 |
| Web URL(s):
https://dl.sciencesocieties.org/publications/aj/articles/103/3/751
Last checked: 11/02/2016
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b2212646a |
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