Accumulation of 137Cs and 90Sr by white sweet clover and sainfoin on sod-podzolic sandy loam soils depending on the levels of phosphorus and potassium nutrition

Authors

  • N.N. Tsybulka International Sakharov Environmental Institute of Belarusian State University, Мinsk, Republic of Belarus
  • О.I. Rodzkin International Sakharov Environmental Institute of Belarusian State University, Мinsk, Republic of Belarus
  • I.I. Zhukova Belarusian State Pedagogical University named after Maxim Tank, Minsk, Republic of Belarus

Keywords:

137Cs, 90Sr, accumulation, white sweet clover, sainfoin, sod-podzolic sandy loam soils

Abstract

It was found that on sod-podzolic sandy loam soils with a pollution density of 137Cs 525 kBq/m2 and 90Sr 15.2 kBq/m2, the activity of 137Cs in the green mass of white sweet clover and sainfoin does not exceed reference level. The content of 90Sr in white sweet clover plants reaches 153.4 Bq/kg, in sainfoin plants – 95.9 Bq/kg, with a reference level of 37 Bq/kg. Phosphorous and potash fertilizers for white sweet clover in rates of R60K60-120 and for sainfoin in rates of R80K140-180 reduce the transition to the green mass of 137Cs by 37-44% and 28-40%, respectively, the transition to the green mass of 90Sr by 25-31% and by 11%. When using phosphorus and potash fertilizers, white sweet clover and sainfoin can be cultivated without restrictions on the density of soil contamination 137Cs. On soils contaminated with 90Sr, it is not recommended to cultivate white sweet clover and sainfoin for the production of green mass when using it for feed in order to obtain whole milk, but only for the production of raw milk during processing for oil and meat production.

Author Biographies

N.N. Tsybulka, International Sakharov Environmental Institute of Belarusian State University, Мinsk, Republic of Belarus

Doctor of Agric. Sc., Professor

О.I. Rodzkin, International Sakharov Environmental Institute of Belarusian State University, Мinsk, Republic of Belarus

Doctor of Biol. Sc., Associate Professor, Deputy Director for educational work

I.I. Zhukova, Belarusian State Pedagogical University named after Maxim Tank, Minsk, Republic of Belarus

PhD in Agric. Sc., Associate Professor, Head of the Department of General Biology and Botany

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Published

2023-06-12

Issue

Section

Biological sciences