Accessibility navigation


The fate of nutrients and heavy metals in energy crop plantations amended with organic by-products

Galbally, P., Finnan, J., Ryan, D., Fagan, C. C. and McDonnell, K. (2019) The fate of nutrients and heavy metals in energy crop plantations amended with organic by-products. Environmental Technology & Innovation, 15. 100434. ISSN 2352-1864

[img] Text - Accepted Version
· Restricted to Repository staff only until 20 July 2020.
· Available under License Creative Commons Attribution Non-commercial No Derivatives.

791kB

It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing.

To link to this item DOI: 10.1016/j.eti.2019.100434

Abstract/Summary

Organic by-products (OB) can provide nutrition to energy crops but there is a potential risk of pollution to soil, groundwater (GW) and surface water (SW). A mass-balance inventory for two energy crops spread with biosolids (BS) and distillery effluent (DE) was created in order to study the fate of nutrients. Biosolids and distillery effluent (DE) were spread on both Miscanthus x giganteus and short rotation coppice willow (SRCW). Applications were conducted at rates of 100%, 50% and 0% (control) of permissible P loads. Losses of nutrients (N,P) and heavy metals (Cd, Cu, Cr, Pb, Ni, and Zn ) to groundwater and overland flow (OLF), and crop uptake were determined. Total inputs (from soil, OB amendment and atmospheric deposition ) and losses were calculated and compared. The greatest input was from the soil, the smallest input was atmospheric deposition. The largest output was crop off-take; the smallest was loss to OLF. Elemental uptake by Miscanthus was lower than that of willow but losses to groundwater and overland flow was similar for both crops. This study has shown that organic byproducts can be used to enhance the nutrition of energy crops without deleterious environmental consequences.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences > Food Research Group
ID Code:85174
Publisher:Elsevier

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation