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- W2967245973 endingPage "109529" @default.
- W2967245973 startingPage "109529" @default.
- W2967245973 abstract "Radioactive cesium (Cs) is more likely to be trans-located via rainfall into surrounding environments. Upon Cs-contaminated water reaching soil, Cs is retained on soil components, mainly organic matter and clay fraction. This study aims are i) comparing the relative ability of five arid soils, differing in their textural and chemical properties, to accumulate Cs when subjected to Cs-artificially contaminated rain droplets and ii) testing whether K fertilizer can decrease the uptake of Cs and its translocation within plants or not. A lab experiment was then conducted to simulate artificial rain droplets contaminated with 1000 becquerel (Bq) of 134Cs L−1 precipitated on soil columns each of 10.5 cm inner diameter at a rate of 1.15 mL cm−2 over a period of 2-months. At least 89% of 134Cs accumulated within the uppermost 5-cm layer of these soils. Another greenhouse experiment was set to test the hypothesis which indicates that Cs uptake increases unexpectedly by supplying plants with K-fertilizers. In this experiment, canola (Brassica napus L.) seeds were cultivated into three K-deficient soils (Typic Haplotorrent, Typic Haplocalcid, and Typic Torripsamment) which were contaminated with 100 mg Cs kg−1 soil (stable-Cs was used instead of radioactive-Cs to designate its behavior on the long run). Canola plants were fertilized with 0, 80 and 120 mg K2SO4 kg−1 soil. Results carried on Typic Haplotorrent soil confirmed the aforementioned assumption as K-addition increased Cd-uptake up to 40.1%. Contradictory results were achieved in the other two soils where Cs-uptake decreased by 21.5 and 15.3% in Typic Haplocalcid and Typic Torripsamment soils, respectively due to the application of the aforementioned dose of K. In the K non-amended soils, Cs shoot-root translocation factor was >1; yet, it was <1 in response to K addition, regardless of its application rate." @default.
- W2967245973 created "2019-08-22" @default.
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- W2967245973 date "2019-11-01" @default.
- W2967245973 modified "2023-10-16" @default.
- W2967245973 title "Depthprofile distribution of Cs and its toxicity for canola plants grown on arid rainfed soils as affected by increasing K-inputs" @default.
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- W2967245973 doi "https://doi.org/10.1016/j.ecoenv.2019.109529" @default.
- W2967245973 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31416013" @default.
- W2967245973 hasPublicationYear "2019" @default.
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