Transfer factors of 134Cs to crops from Typic Haplustept under tropical region as influenced by potassium application

Sandeep, S.; Manjaiah, K.M.

doi:10.1016/j.jenvrad.2007.08.011

Cited by 17 publications

(5 citation statements)

References 24 publications

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“…The SCs and K concentrations in the different plant parts are shown in Table 3. The SCs concentration was the highest in ExK7.9 plot in all plant parts at all growth stages translocation has also been observed in various crops (Fowler & Christenson, 1959;Fujimura et al, 2013;Kato et al, 2015;Kondo et al, 2015;Sandeep & Manjaiah, 2008). However, the effect of soil ExK content on the behavior of RCs in soil and buckwheat plants is still unclear.…”

Section: Partitioning Of Cs and Discrimination Between Cs And K In Bumentioning

confidence: 74%

Effect of soil exchangeable potassium content on cesium absorption and partitioning in buckwheat grown in a radioactive cesium-contaminated field

Kubo

Fujimura

Kobayashi

et al. 2017

Plant Production Science

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The effect of soil exchangeable (plant-available) potassium (ExK) content on cesium (Cs) absorption and translocation in buckwheat was evaluated in a field contaminated with radioactive Cs (134 Cs and 137 Cs, RCs) in 2013. The RCs concentration in buckwheat was significantly positively correlated with the naturally occurring stable Cs (133 Cs, SCs) concentration, and was lower at higher soil ExK content. The RCs and SCs were actively absorbed by buckwheat until the flowering stage. The soil ExK content was significantly negatively correlated with soil exchangeable RCs and SCs (ExRCs and ExSCs) concentrations. Greater RCs and SCs absorption by buckwheat in soils with low ExK contents was mainly due to higher soil ExRCs and ExSCs concentrations. Reproductive organs showed the largest differences in SCs concentration between low-ExK and high-ExK plots. The root-shoot and shoot-reproductive organs translocations of SCs markedly decreased with increasing soil ExK content. In the root-shoot and shoot-reproductive organs translocations, the discrimination of SCs and K decreased with decreasing soil ExK content. Our main findings were as follows: (1) because RCs are mainly taken up at the earlier growth stage, potassium should be applied as a basal fertilizer to decrease the RCs concentration in buckwheat; (2) lower soil ExK content led to higher soil ExRCs concentrations, resulting in greater RCs absorption by buckwheat; (3) the high Cs absorption and translocation and weaker discrimination between Cs and K in low ExK content soil may be due to the expression of K transporter(s) with weak discrimination between Cs and K.

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Section: Partitioning Of Cs and Discrimination Between Cs And K In Bumentioning

confidence: 74%

Effect of soil exchangeable potassium content on cesium absorption and partitioning in buckwheat grown in a radioactive cesium-contaminated field

Kubo

Fujimura

Kobayashi

et al. 2017

Plant Production Science

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“…In recent years, many efforts have been put by India and worldwide to generate the soil-to-plant transfer factor (TF S-P ) values for different radionuclides (manganese-54, cobalt-60, strontium-90, cesium-134, cesium-137) under various laboratory conditions using spike experiments (Choi et al 2009;Sandeep and Manjaiah 2008;Quinto et al 2009). Though the experimental transfer factor values (TF) are available, they can be best used only for fresh fallout and they do not reflect the long-term behavior of radionuclides in ambient environment.…”

Section: Introductionmentioning

confidence: 99%

Transfer of 137Cs and 40K from Agricultural Soils to Food Products in Terrestrial Environment of Tarapur, India

Panchal

Rao

Mehta

2011

Water Air Soil Pollut

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The 137 Cs and 40 K activities and transfer factors from soil to vegetables, grass, and milk from villages located around Tarapur Atomic Power Station (TAPS) were determined using high-resolution gamma spectrometry. A total of 32 soil, 21 vegetable, 23 dry paddy grass, and 23 milk samples were collected from 23 different agricultural farms from various villages around TAPS to determine transfer factors for natural environment. The mean concentration values for 137 Cs and 40 K in soil, grass, and milk were 2.39± 0.86 Bq kg −1 , 0.31 ± 0.23 Bq kg −1 , and 12.4 ± 5.7 mBq L − 1 and 179±31 Bq kg − 1 , 412± 138 Bq kg −1 , and 37.6±9.3 Bq L −1 , respectively, for soil-grass-milk pathway. In the soil-vegetation pathway, the mean concentrations values for 137 Cs and 40 K were 2.15±1.04 Bq kg −1 , 16.5±7.5 mBq kg −1 , and 185±24, 89±50 Bq kg −1 , respectively. The evaluated mean transfer factors from soil-grass, grass-milk, and soil-vegetation for 137 Cs were 0.14, 0.0044, and 0.0073 and that of 40 K were 2.42, 0.0053, and 0.49, respectively. Only 15 out of total 44 milk and vegetable samples were detected positive for 137 Cs, indicating a very low level of bioavailability.

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“…Agricultural countermeasures such as use of counter-ions of the same homologous series, viz., stable cesium, potassium or ammonium, were considered to be more useful in checking the radiocesium transfer to crops (Lembrechts, 1993;Nisbet et al, 1993;Zhu et al, 2002;Sandeep and Manjaiah, 2008;Sandeep et al, 2009). Clay minerals, micas and zeolites have been observed to reduce the phytoavailability of radiocesium to crops (Paasikallio, 1999) and the effectiveness of such amendments varies significantly depending on plant species and soil parameters (Frissel et al, 2002;Sachdev et al, 2006;Willey et al, 2005;Broadley and Willey, 1997).…”

Section: Introductionmentioning

confidence: 99%

Effect of waste mica on transfer factors of¹³⁴Cs to spinach and lettuce

et al. 2011

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Transfer factors of 134Cs to crops from Typic Haplustept under tropical region as influenced by potassium application

Cited by 17 publications

References 24 publications

Effect of soil exchangeable potassium content on cesium absorption and partitioning in buckwheat grown in a radioactive cesium-contaminated field

Effect of soil exchangeable potassium content on cesium absorption and partitioning in buckwheat grown in a radioactive cesium-contaminated field

Transfer of 137Cs and 40K from Agricultural Soils to Food Products in Terrestrial Environment of Tarapur, India

Effect of waste mica on transfer factors of¹³⁴Cs to spinach and lettuce

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Transfer factors of 134Cs to crops from Typic Haplustept under tropical region as influenced by potassium application

Cited by 17 publications

References 24 publications

Effect of soil exchangeable potassium content on cesium absorption and partitioning in buckwheat grown in a radioactive cesium-contaminated field

Effect of soil exchangeable potassium content on cesium absorption and partitioning in buckwheat grown in a radioactive cesium-contaminated field

Transfer of 137Cs and 40K from Agricultural Soils to Food Products in Terrestrial Environment of Tarapur, India

Effect of waste mica on transfer factors of134Cs to spinach and lettuce

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Effect of waste mica on transfer factors of¹³⁴Cs to spinach and lettuce