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Boron, Zinc, Iron, and Manganese Content in Four Grassland Species

AuthorsAdarve, M. J.; Hernández, Ana Jesús; Gil Criado, Angel; Pastor Piñeiro, Jesús
Grassland species
Issue Date1998
PublisherAmerican Society of Agronomy
Crop Science Society of America
Soil Science Society of America
CitationJournal of Environmental Quality 27(6):1286-1293(1998)
AbstractA pot experiment was carríed oul to test the response of the B, Zn, Fe, and Mn concentraron in four wild herbaceous specics exposcd to three landñll leachate treatments of increasing concentration of contaminants. The species tested «ere clustered clover (Trifolium (¡lomera tum L.), col ton clover (T. tomentosum L.), wall barley (Hordeum murinum L.), and soft brome (Bromus hordaceus L.). The legume specics accumulated more Fe and B than the grasses. The least contaminated leachate (leachate A) significantly increased the Fe and Mn content in T. glomeratum. Leachate B significantly increased the Zn content in both clover species and Fe content in T. glomeratum and H. murinum, while it significantly decreased the B content in T. glomeratum. The most contaminated leachate (leachate C) significantly increased the Zn content in T. glomeratum, while it significantly decreased the B and Fe content In the four species the content of B, Fe, and Mn in the plants under the leachate treatments was in a normal valúes range, while in T. glomeratum and H. murinum the Zn content had in some cases a toxic level (>100 mg L '). The dry weight of the four species tested diminished significantly under the most contaminated leachate. The ANOVA confirmed a major significan! influence of the "species factor" on the response of the plant to leachate supply, but the treatment factor also had significan! F-values in some cases. The species tested have a potential revegetation valué for some áreas degraded by landfill leachates.
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