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DOI: | 10.2134/jeq2018.01.0015 |
Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/articles/47/5/1249 Last checked: 10/08/2018 https://dl.sciencesocieties.org/publications/jeq/pdfs/47/5/1249 Last checked: 10/08/2018 Requires: PDF Reader |
Publication Type:
| Refereed |
Author(s): | Benyas, Ebrahim;
Owens, Jennifer;
Seyedalikhani, Salome;
Robinson, Brett |
Author Affiliation: | Benyas, Owens, and Seyedalikhani: Dep. of Soil and Physical Sciences, Faculty of Agriculture and Life Sciences, Lincoln Univ., Lincoln, New Zealand; Robinson: School of Physical Sciences and Chemical Sciences, Univ. of Canterbury, Christchurch, New Zealand |
Title: | Cadmium uptake by ryegrass and ryegrass-clover mixtures under different liming rates |
Section: | Trace elements in the environment Other records with the "Trace elements in the environment" Section
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Source: | Journal of Environmental Quality. Vol. 47, No. 5, September/October 2018, p. 1249-1257. |
Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
# of Pages: | 9 |
Keywords: | TIC Keywords: Cadmium; Fertilization rates; Liming; Nutrient uptake; Trifolium
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Abstract/Contents: | "Cadmium accumulates in soils that receive repeated applications of Cd-rich superphosphate fertilizers. There is evidence that adding clovers to a crop solubilizes soil Cd, increasing the bioavailability of Cd. This can lead to high plant Cd concentrations. This research aimed to test whether liming-induced increases in pH in mixed crops of clovers and ryegrasses reduced forage Cd concentrations. A greenhouse pot trial applied lime at three rates (0, 1, and 2% of soil dry weight) to eight different plant treatmentsfour as monocultures (perennial ryegrass [Lolium perenne L.], Italian ryegrass [L. multiflorum Lam.], white clover [Trifolium repens L.], and red clover [T. pratense L.]) and four as ryegrassclover mixtures (two plant types in each treatment)in soil (initial soil pH = 5.1, initial soil Cd concentration = 1.31 mg kg-1) with added Cd (CdSO4 ~ 1 mg kg-1). Adding lime increased soil pH in both mono- and mixed crops and, in most treatments, increased forage yields. However, the relationship between forage Cd and soil pH differed between plant treatments. In mono- and mixed crop treatments containing perennial ryegrass, adding lime increased the forage yield but did not increase the mass of Cd in the plants compared with the no-lime treatment. However, adding lime to treatments that included Italian ryegrass increased both the forage yield and the Cd compared with the no-lime treatment. The results show that a combination of certain plant species composition and lime rates can optimize forage yields without increasing forage Cd concentrations." |
Language: | English |
References: | 64 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Benyas, E., J. Owens, S. Seyedalikhani, and B. Robinson. 2018. Cadmium uptake by ryegrass and ryegrass-clover mixtures under different liming rates. J. Environ. Qual. 47(5):p. 1249-1257. |
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| DOI: 10.2134/jeq2018.01.0015 |
| Web URL(s): https://dl.sciencesocieties.org/publications/jeq/articles/47/5/1249 Last checked: 10/08/2018 https://dl.sciencesocieties.org/publications/jeq/pdfs/47/5/1249 Last checked: 10/08/2018 Requires: PDF Reader |
| MSU catalog number: b2225072a |
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