The bioaccumulation of heavy metals in barley (Hordeum vulgare L) cultivated on fly ash dump mixed with compost and natural zeolite materials
The physic-chemical characteristics of the upper layers of fly ash dumps are very important when phytostabilization plant selection is carried out. Plants with topsoil well developed roots, like cereals are used to stabilize fly ash dumps in order to eliminate the deflation, erosion, etc. These plan...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Agroprint Timisoara
2023-09-01
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| Series: | Scientific Papers Animal Science and Biotechnologies |
| Subjects: | |
| Online Access: | https://spasb.ro/index.php/public_html/article/view/887 |
| Summary: | The physic-chemical characteristics of the upper layers of fly ash dumps are very important when phytostabilization plant selection is carried out. Plants with topsoil well developed roots, like cereals are used to stabilize fly ash dumps in order to eliminate the deflation, erosion, etc. These plant species could be used in the phytostabilization/phytoextraction variant taking into account their metal hyper accumulation capacity, and also in phytostabilization variant by adequate topsoil treatments when a decrease mobility of metals from soil to plants is achieved and thus a less toxic crop is obtained. This study presents a comparative analysis of the metal bioaccumulation degree in plant tissues (grain and straw) of barley cultivated on fly ash variants treated with different quantities of compost in the absence/presence of natural zeolite materials, indigenous volcanic tuff. The addition of plant debris and sewage sludge compost mixed with natural zeolite materials has lowered the bioaccumulation of Cr with 49%, of Cu with 29%, Fe with more than 77.5%, in grains and straw when compared to untreated fly ash. Barley plants does not allow for Pb and Ni transfer from the fly ash in the aerial part of tissue. |
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| ISSN: | 1841-9364 2344-4576 |