Concentration of trace metals in winter wheat and spring barley as a result of digestate, cattle slurry, and mineral fertilizer application
Language English Country Germany Media print-electronic
Document type Journal Article
Grant support
MZe-RO0418
Ministry of Agriculture of the Czech Republic
005/RID/2018/19
Ministry of Science and Higher Education of Poland
PubMed
31845241
DOI
10.1007/s11356-019-07304-2
PII: 10.1007/s11356-019-07304-2
Knihovny.cz E-resources
- Keywords
- Bioconcentration factors, Cattle slurry, Contamination, Digestate, Mineral fertilizer, Trace elements,
- MeSH
- Manure MeSH
- Hordeum * metabolism MeSH
- Metals chemistry MeSH
- Minerals chemistry metabolism MeSH
- Fertilizers * MeSH
- Triticum metabolism MeSH
- Soil MeSH
- Cattle MeSH
- Animals MeSH
- Check Tag
- Cattle MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Manure MeSH
- Metals MeSH
- Minerals MeSH
- Fertilizers * MeSH
- Soil MeSH
Concentration of trace metals (TMs) is one of the most crucial factors determining the quality of cereal grains. The aim of this study was to evaluate the effect of digestate, manure, and NPK fertilization on TM concentration in grains and straw of two cereal crops-winter wheat (WW) and spring barley (SB)-and TM transfer from soil to plants. The experiment was carried out between 2012 and 2016. Every year, the same treatment was used on each plot: control (without fertilization), digestate, digestate + straw, cattle slurry, and mineral NPK fertilization. In general, fertilization increased the concentration of TMs that belong to the micronutrient group (Zn, Cu, Fe), particularly after application of digestate and cattle slurry. At the same time, fertilization, regardless of the fertilizer type, led to an increase in Cd concentration in the grain of WW in comparison with the control. Despite the increase in Cd and micronutrient content as a result of fertilization, the concentration of elements remained below the applicable standards. Among TMs, only Pb content exceeded the European Union limits. The increased concentration of Pb was, however, an effect of other factors, rather than fertilization. The results clearly indicated that the biogas digestate from anaerobic codigestion of cattle slurry and agricultural residue could be utilized as fertilizer in agricultural applications without a risk of contaminating the food chain with TMs.
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