Trace elements in rock phosphates and P containing mineral and organo-mineral fertilizers sold in Germany

The Science of the Total Environment
Sylvia KratzEwald Schnug

Abstract

68 rock phosphates and 162 P containing (organo-)mineral fertilizers sold in Germany were evaluated with regard to trace element contents. While Al, As, B, Be, Cd, Cr, Mo, Ni, Pb, Sb, Se, Tl, U, and Zn were higher in sedimentary than in igneous rock phosphates, the opposite was true for Co, Cu, Sn, Mn, Ti, Fe, and Sr. Comparing element concentrations to the currently valid legal limit values defined by the German Fertilizer Ordinance, it was found that some PK and many straight P fertilizers (superphosphate, triple superphosphate, partly acidulated rock phosphates) exceeded the limit of 50 mg Cd/kg P2O5. Mean values for As, Ni, Pb, and Tl remained below legal limits in almost all cases. While no legal limit has been defined for U in Germany yet, the limit of 50 mg U/kg P2O5 for P containing fertilizers proposed by the German Commission for the Protection of Soils was clearly exceeded by mean values for all fertilizer types analyzed. A large share of the samples evaluated in this work contained essential trace elements at high concentrations, with many of them not being declared as such. Furthermore, trace elements supplied with these fertilizers at a fertilization rate leveling P uptake would exceed trace element uptake by crop...Continue Reading

References

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Citations

Apr 12, 2016·Journal of Hazardous Materials·Christian VogelChristian Adam
Dec 3, 2016·Environmental Pollution·Moritz BigalkeArmin Keller
Mar 9, 2017·Environmental Research·Oliver Krüger, Christian Adam
Dec 1, 2017·Critical Reviews in Food Science and Nutrition·Sara Hurtado-BarrosoRosa María Lamuela-Raventós
Dec 24, 2018·Journal of the Science of Food and Agriculture·Jürgen FranzaringVolker Hahn
Aug 28, 2019·Antioxidants·Sara Hurtado-BarrosoRosa M Lamuela-Raventós
Dec 18, 2019·Environmental Science and Pollution Research International·Martín Enrique Jara-MariniFederico Páez-Osuna
May 29, 2018·Environmental Science and Pollution Research International·Zahra Latifi, Mohsen Jalali
Mar 28, 2020·Scientific Reports·Carlos Alexandre Costa CrusciolHeitor Cantarella
Mar 14, 2020·Environmental Science and Pollution Research International·Shuai WangKun Li
May 14, 2018·Engineering in Life Sciences·Susanne GüntherSusann Müller
Oct 21, 2020·Environmental Science and Pollution Research International·Mohamed H Taha
Jan 17, 2020·The Science of the Total Environment·Mieke VerbeeckErik Smolders

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