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DOI: | 10.1080/09064710.2015.1030444 |
Web URL(s): | http://www.tandfonline.com/doi/pdf/10.1080/09064710.2015.1030444 Last checked: 06/04/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website http://www.tandfonline.com/doi/full/10.1080/09064710.2015.1030444 Last checked: 06/04/2015 Access conditions: Item is within a limited-access website |
Publication Type:
| Report |
Author(s): | Øgaard, Anne Falk |
Author Affiliation: | Bioforsk-Norwegian Institute for Agricultural and Environmental Research, Frederik A. Dahls, Ås, Norway |
Title: | Freezing and thawing effects on phosphorus release from grass and cover crop species |
Source: | Acta Agriculturae Scandinavica: Section B, Soil and Plant Science. Vol. 65, No. 6, 2015, p. 529-536. |
Publishing Information: | [London, United Kingdom]: Taylor & Francis |
# of Pages: | 8 |
Related Web URL: | http://www.tandfonline.com/doi/abs/10.1080/09064710.2015.1030444 Last checked: 06/04/2015 Notes: Abstract only |
Keywords: | TIC Keywords: Cultivar evaluation; Erosion control; Nutrient loss; Nutrient management; Phosphorus; Temperature response; Vegetative areas
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Abstract/Contents: | "Cover crops, grassed buffer zones along watercourses and grassed waterways are recommended for mitigating erosion and phosphorus (P) losses from fields with arable crop production. There are, however, concerns that plant covers may release dissolved P and contribute to P loss after plant freezing. The objective of this study was to evaluate P release after freezing from different plant species of interest for use either as cover crops or in grassed buffer zones/waterways. In the laboratory, seven plant species (red clover (Trifolium pretense L.), timothy (Phleum pretense L.), annual ryegrass (Lolium multiflorum Lam.), hairy vetch (Vicia villosa Roth.), rye (Secale cereale L.) oil radish (Raphanus sativus L. var. oleiferus) and winter rapeseed (Brassica napus L. var. oleifera f. biennis)) were subjected to daily freeze-thaw cycles (FTCs; -10°C/+5°C) for one week. In a two-year outdoor experiment located under a roof to protect the plants from rain and snow, eight plant species (white clover (Trifolium repens L.), timothy, meadow fescue (Festuca pratensis L.), smooth meadow grass (Poa pratensis L.), annual ryegrass, perennial ryegrass (Lolium perenne L.), rye and hairy vetch) were subjected to winter temperatures. The plants were sampled in winter and spring. The results showed that after seven FTCs in the laboratory, less than 15% of the total phosphorus (TP) was water-extractable P for all species except oilseed radish for which 32% of the TP was water extractable. In the outdoor experiment, the plants were exposed to temperatures below -20°C during both winters. Depending on the plant species, 18-42% and 17-48% of the TP was water extractable in the spring of the first and second year, respectively. The minimum temperatures and the plant growth conditions were important for the ranking of different plant species with respect to the risk of off-season P leaching." |
Language: | English |
References: | 22 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Øgaard, A. F. 2015. Freezing and thawing effects on phosphorus release from grass and cover crop species. Acta Agriculturae Scandinavica: Section B, Soil and Plant Science. 65(6):p. 529-536. |
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| DOI: 10.1080/09064710.2015.1030444 |
| Web URL(s): http://www.tandfonline.com/doi/pdf/10.1080/09064710.2015.1030444 Last checked: 06/04/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website http://www.tandfonline.com/doi/full/10.1080/09064710.2015.1030444 Last checked: 06/04/2015 Access conditions: Item is within a limited-access website |
| MSU catalog number: b4897625 MSU catalog number: b2483019 |
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