Response of spring wheat and potato to foliar application of Zn, Mn and EDTA fertilizers on 137Cs uptake. (February 2021)

• Record Type: Journal Article
• Authors: Vinichuk, M.; Bergman, R.; Sundell-Bergman, S.; Rosén, K.
• Is Part Of: Journal of environmental radioactivity. Volume 227(2021)
• Publication Date: 2021-02
• Subjects: Wheat -- Potato -- Zinc -- Mamganese -- EDTA -- Radiocaesium; Radioactivity -- Periodicals; Radiation, Background -- Periodicals; Radioecology -- Periodicals; Radioactive pollution -- Periodicals; Environmental Pollutants -- Periodicals; Radioactive Pollutants -- Periodicals; Radioactivity -- Periodicals; Radioécologie -- Périodiques; Pollution radioactive -- Périodiques; Fond de rayonnement -- Périodiques; 539.752
• DOI: 10.1016/j.jenvrad.2020.106466
• Languages: English
• ISSNs: 0265-931X

Abstract

Abstract: The impact of foliar fertilization with zinc (ZnSO4 ) and manganese (MnSO4 on 137 Cs uptake by spring wheat and potato was studied. The experiments were conducted during 3 years (2014–2016) in a 137 Cs-contaminated area, Zhytomyr region of Ukraine. The fertilization was carried out on podzolic loamy sand soil, poor in most of the microelements. Both crops were fertilized at four successive stages of growth. Foliar application of fertilizers caused higher yield of wheat grain/straw and potato tubers yield in 2014–2015 years but had no effect in 2016. Thus, the overall effect of fertilization between 2014 and 2016 was less pronounced and generally insignificant. Application of Zn, Mn and EDTA reduced 137 Cs uptake by wheat grain and potato tubers, when fertilized at earlier stages of growth and development in years 2014 and 2015 by factor 1.5–2.0, while in 2016 the effect was generally statistically insignificant. It is suggested, that reduction of 137 Cs uptake by spring wheat and potato, at least partly, was caused by an effect of radionuclide dilution due to the higher biomass of the plants. A foliar spray of EDTA at earlier stages of plant growth and development may be considered as a potential countermeasure aiming reducing 137 Cs uptake from soil to plants, even if such effect appeared to be conditional. Highlights: Fertilization with Zn and Mn increases conditionally the yield of wheat and potatoes. Fertilization on early stage growth is more effective than on later stages of growth. Fertilization with Zn decreases 137 Cs uptake for wheat grain. Fertilization with Mn does not decrease 137 Cs uptake for wheat grain.