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| DOI: | 10.21273/HORTSCI.43.4.1171 |
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| Web URL(s): | https://journals.ashs.org/hortsci/view/journals/hortsci/43/4/article-p1171.xml?rskey=C0D42Q
Last checked: 11/20/2019
Requires: PDF Reader
Notes: Item is within a single large file; Abstract only |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Percivalle, Cynthia;
Brown, Rebecca |
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| Author Affiliation: | Percivalle: University of Rhode Island, Kingston; Brown: University of Rhode Island, Warwick, Rhode Island |
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| Title: | Organic fertilizers slow Gloeocercospora sorghi disease development on Agrostis canina (velvet bentgrass) |
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| Section: | Abstracts (poster sessions): Wednesday
Other records with the "Abstracts (poster sessions): Wednesday" Section
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| Source: | HortScience. Vol. 43, No. 4, July 2008, p. 1251. |
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| Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Organic fertilizers; Gloeocercospora sorghi; Agrostis canina; Disease control; Nitrogen fertilization; Disease resistance
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| Abstract/Contents: | "The fungal disease copper spot (Gloeocercospora sorghi) is a problem on velvet bentgrass (Agrostis canina) during the summer months. The disease thrives in warm, moist conditions and is commonly associated with acidic soils. Outbreaks are induced by plant exudates high in excess nitrogen and usually occur following nitrogen fertilization. Nitrogen in slight excess of the plant's needs is enough to result in copperspot outbreak. Organic fertilizers tend to release nitrogen more slowly, and are commonly referred to as slow release fertilizers. Here we have shown that organic fertilizers release nitrogen slowly enough for the plant to utilize what is available without developing excess nitrogen levels that could trigger copperspot disease. This study compared synthetic water-soluble fertilizer (20-9-20) with four organic fertilizers, each with a different source of nitrogen. The organic fertilizers used were North Country Organics Nature's Turf (8-1-9), Terracycle worm emulsion (0.03-0.002-0.02), Milorganite (6-2-0), and Multi-Bloom fish emulsion (2-3-1). Two cultivars of velvet bentgrass were used, Greenwich and SR7200. Plugs were set up in trays in a greenhouse environment and fertilizer applied at a rate of 0.5 lbs N/1000 ft2. We found significant differences (P < 0.05) in copperspot incidence among the fertilizer treatments. All of the organics fertilizer treatments showed significantly less copperspot than the control. The Multi-Bloom fish emulsion and the Milorganite fertilizers had the least disease development." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Percivalle, C., and R. Brown. 2008. Organic fertilizers slow Gloeocercospora sorghi disease development on Agrostis canina (velvet bentgrass). HortScience. 43(4):p. 1251. |
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| DOI: 10.21273/HORTSCI.43.4.1171 |
| Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/43/4/article-p1171.xml?rskey=C0D42Q
Last checked: 11/20/2019
Requires: PDF Reader
Notes: Item is within a single large file; Abstract only |
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MSU catalog number: b2217685a |
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