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Cited by 20Plant Micronutrient Interactions and EffectsHeavy metals in environmentTrace Elements in Health

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Zn phytoextraction and recycling of alfalfa biomass as potential Zn-biofortified feed crop

Wang, Xiaolin, Fernandes de Souza, Marcella, Li, Haichao, Tack, Filip M.G., Ok, Yong Sik, Meers, Erik·2021·Science of The Total Environment
DOI 10.1016/j.scitotenv.2020.143424
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Abstract

Zn is an essential micronutrient for living organisms and, in that capacity, it is added to animal feed in intensive livestock production to promote growth and eliminate diseases. Alfalfa (Medicago sativa L.) may have the potential to compensate and substitute the need for chemical Zn additives in feeds as a Zn-biofortified feed crop when grown on Zn-enriched soils. Thus, this possibility was investigated with a greenhouse experiment using three soils with Zn concentrations (mg kg -1 ) of 189 (soil A), 265 (soil B) and 1496 (soil C). Ethylenediamine-N,N'-disuccinate acid (EDDS) and Nitrilotriacetic acid (NTA) at different rates (0 as control, 0.5, 2 and 5 mmol kg -1 ) were applied as soil additives to enhance the phytoextraction efficiency of alfalfa. The results showed that Zn was highly transferable in alfalfa tissues in the three soils even without additives. EDDS was more effective than NTA in enhancing Zn phytoextraction by alfalfa. The maximum Zn accumulation in the third cutting shoots was obtained with the EDDS concentration of 5 mmol kg -1 in soil A and of 2 mmol kg -1 in soil B, with a 462% and 162% increase compared with controls, respectively. However, the higher EDDS concentration resulted in a significant reduction in biomass production. In soil C, all EDDS concentrations resulted in similar Zn accumulations in the third shoot. To improve the phytoextraction efficacy of Zn while minimizing its phytotoxicity on alfalfa, the rate of 2 mmol kg -1 EDDS proved to be…

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  • Metal(loid)s extracted by plants can serve as beneficial nutrients; Se-rich biomass can biofortify Se-deficient agricultural land, and alfalfa biomass after Zn or Cu phytoextraction can be used as trace-element additives for livestock feed and biofortification.

    “Metal(loid)s extracted by plants can also serve as beneficial nutrients.”

    From Sustainable management of post-phytoremediation biomass (2025) · cites this paper as Wang et al. 2021a

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Metadata

Authors
Wang, X., Fernandes de Souza, M., Li, H., Tack, F. M. G., Ok, Y. S., & Meers, E.
Affiliations
  • Ghent University (BE)
  • Korea University (KR)
Corresponding author
Wang, Xiaolin
ORCID
Venue
Science of The Total Environment
Publisher
Elsevier BV
Published
2021-03
Volume
760
Pages
143424
ISSN
0048-9697 (ISSN-L)
DOI
10.1016/j.scitotenv.2020.143424
OpenAlex
W3105728254
Cited by
20
References
2
Citations by year
2026: 2 · 2025: 2 · 2024: 2 · 2023: 3 · 2022: 6 · 2021: 4
FWCI
2.10
Type
journal article
Language
en
Open access
closed
Licence
Locations
  • The Science of The Total Environment (publishedVersion)
  • PubMed (publishedVersion)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion)
Funders
  • China Scholarship Council
  • European Regional Development Fund
  • Interreg
  • Rural Development Administration
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Micronutrient Interactions and Effects
  • Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
  • Health Sciences › Nursing › Nutrition and Dietetics › Trace Elements in Health
Keywords
zinc biofortification, alfalfa, EDDS, NTA, chelating agents, zinc accumulation, phytotoxicity, biomass recycling, micronutrient biofortification
MeSH terms
Biofortification, Medicago sativa, Animals, Biodegradation, Environmental, Chelating Agents, Ethylenediamines, Soil, Soil Pollutants, Succinates, Zinc, Biomass

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