<abstract xmlns="http://www.w3.org/1999/xhtml">Prolonged systematic application of mineral fertilisers contributes to increasing the yielding capacity of agricultural crops. However, it can lead to significant changes in the composition, properties and formation of agricultural soil regimes. The findings of the research have shown that the application of mineral fertilisers leads to the change of radioactive nuclides content in the soil. The research was conducted under conditions of a long-term stationary field experiment (Uman, Ukraine), using different rates of mineral fertilisers N45P45K45, N90P90K90 and N135P135K135. Soil samples (podzolized chernozem) were selected from the depths of 0 – 20, 20 – 40 and 40 – 60 cm. Specific activity of radionuclides was determined by the spectrometric analysis. Using experimental results we have demonstrated that under a long-term application (50 years) different rates of mineral fertilisers effect the specific activity of radioactive isotopes in the soil (226Ra, 232Th, 40K, 137Cs, 90Sr). The specific activity of radionuclides in a podzolized chernozem and in winter wheat grain was established. Winter wheat plants accumulated 232Th at the highest levels, but the use of fertilisers reduced it in a larger mass of the crop. The absorption of radioactive nuclides by winter wheat grain grown after peas and silage corn depending on fertilisation changed similar to growing it after clover as a previous crop. According to the data of specific activity of radioactive nuclides in the soil and winter wheat grain, the coefficient of their biological absorption was calculated.</abstract>

Prolonged systematic application of mineral fertilisers contributes to increasing the yielding capacity of agricultural crops. However, it can lead to significant changes in the composition, properties and formation of agricultural soil regimes. The findings of the research have shown that the application of mineral fertilisers leads to the change of radioactive nuclides content in the soil. The research was conducted under conditions of a long-term stationary field experiment (Uman, Ukraine), using different rates of mineral fertilisers N45P45K45, N90P90K90 and N135P135K135. Soil samples (podzolized chernozem) were selected from the depths of 0 – 20, 20 – 40 and 40 – 60 cm. Specific activity of radionuclides was determined by the spectrometric analysis. Using experimental results we have demonstrated that under a long-term application (50 years) different rates of mineral fertilisers effect the specific activity of radioactive isotopes in the soil (226Ra, 232Th, 40K, 137Cs, 90Sr). The specific activity of radionuclides in a podzolized chernozem and in winter wheat grain was established. Winter wheat plants accumulated 232Th at the highest levels, but the use of fertilisers reduced it in a larger mass of the crop. The absorption of radioactive nuclides by winter wheat grain grown after peas and silage corn depending on fertilisation changed similar to growing it after clover as a previous crop. According to the data of specific activity of radioactive nuclides in the soil and winter wheat grain, the coefficient of their biological absorption was calculated.

Assessment of the Contamination Level of a Podzolized Chernozem with Nuclides in a Long-term Land Use

Agriculture (Pol'nohospodárstvo)

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Prolonged systematic application of mineral fertilisers contributes to increasing the yielding capacity of agricultural crops. However, it can lead to...

Assessment of the Contamination Level of a Podzolized Chernozem with Nuclides in a Long-term Land Use

Publié en ligne: 18 oct. 2019

Pages: 128 - 135

Reçu: 05 mars 2019

Accepté: 12 sept. 2019

DOI: https://doi.org/10.2478/agri-2019-0013

Mots clés
radioactive isotopes, radium, thorium, potassium, cesium, strontium, specific activity of radioactive nuclides

© 2019 Hrygorii Hospodarenko et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Assessment of the Contamination Level of a Podzolized Chernozem with Nuclides in a Long-term Land Use

Publié en ligne: 18 oct. 2019

Pages: 128 - 135

Reçu: 05 mars 2019

Accepté: 12 sept. 2019

DOI: https://doi.org/10.2478/agri-2019-0013

Mots clésradioactive isotopes, radium, thorium, potassium, cesium, strontium, specific activity of radioactive nuclides

© 2019 Hrygorii Hospodarenko et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
radioactive isotopes, radium, thorium, potassium, cesium, strontium, specific activity of radioactive nuclides