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| Publication Type:
| Refereed |
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| Author(s): | Lewis, G. C.;
Lam, A. |
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| Author Affiliation: | The Grassland Research Institute, Hurley, Maidenhead, Berks, U.K. |
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| Title: | Effects of nitrogen and potassium fertilizer application on Drechslera spp. and Puccinia coronata on perennial ryegrass (Lolium perenne) foliage |
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| Source: | Plant Pathology. Vol. 31, No. 2, June 1982, p. 123-131. |
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| Publishing Information: | Oxford : Blackwell Scientific Publications |
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| Keywords: | TIC Keywords: Drechslera
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| Geographic Terms: | Puccinia coronata; Lolium perenne |
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| Abstract/Contents: | In a field experiment nitrogen (N) fertilizer was applied to small plots of perennial ryegrass (Lolium perenne) at rates equivalent to 0, 200, 400, and 600 kg N/ha/yr at each of two levels of potassium (K) 0 and 200 kg K/ha/yr. Plots were cut at 6-week intervals during 1977-79 and dry matter yield was determined. Water-soluble carbohydrate and N content of the foliage were measured at three harvests in 1977. The incidence and severity of Drechslera spp. were assessed at and between harvests; attack by Puccinia coronata was assessed each autumn. Most foliar damage was caused by Drechslera spp. This was increased by N application which also altered the relative proportions of the Drechslera spp. present. K application had no apparent effect on disease incidence. Puccinia coronata was more prevalent on older leaves and on one occasion its incidence was increased by N application. |
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| Language: | English |
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| References: | Unknown |
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| See Also: | Other items relating to: Potassium |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lewis, G. C., and A. Lam. 1982. Effects of nitrogen and potassium fertilizer application on Drechslera spp. and Puccinia coronata on perennial ryegrass (Lolium perenne) foliage. Plant Pathol. 31(2):p. 123-131. |
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MSU catalog number: SB 599 .P96 |
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