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Suppressive effects of magnesium oxide materials on cadmium uptake and accumulation into rice grains II: Suppression of cadmium uptake and accumulation into rice grains due to application of magnesium oxide materials.
J Hazard Mater. 2008 Jun 15; 154(1-3):294-9.JH

Abstract

The objective of this study is to assess the applicability of a commercial magnesium oxide (MgO) and a composite material containing MgO and natural minerals ('MgO-SH-A') as the soil amendments for suppression of cadmium (Cd) uptake and accumulation into rice grains. A cultivation experiment of rice plants (Oryza sativa L. cv. Kinuhikari) was conducted in an actual Cd-contaminated alluvial paddy field to evaluate the effectiveness of these materials. The 'plant available' fractions of Cd in the paddy soil significantly decreased by application of commercial MgO at 2250 kg ha(-1) or MgO-SH-A at 4500 kg ha(-1). These decreases would be primarily attributed to the increase in soil pH due to applications of the MgO materials because these soil Cd fractions were significantly negatively correlated with the soil pH. Even under a suppressive condition for Cd uptake by rice plants, i.e., continuous flooding of the paddy field around the heading stage, applications of these materials further reduced Cd concentration in brown rice as compared to that from the control. It was concluded that the two MgO materials examined would be effective in preventing Cd contamination of rice grains grown in Cd-polluted paddy fields.

Authors+Show Affiliations

Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan. tetsu-k@hino.meisei-u.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18054161

Citation

Kikuchi, Tetsuro, et al. "Suppressive Effects of Magnesium Oxide Materials On Cadmium Uptake and Accumulation Into Rice Grains II: Suppression of Cadmium Uptake and Accumulation Into Rice Grains Due to Application of Magnesium Oxide Materials." Journal of Hazardous Materials, vol. 154, no. 1-3, 2008, pp. 294-9.
Kikuchi T, Okazaki M, Kimura SD, et al. Suppressive effects of magnesium oxide materials on cadmium uptake and accumulation into rice grains II: Suppression of cadmium uptake and accumulation into rice grains due to application of magnesium oxide materials. J Hazard Mater. 2008;154(1-3):294-9.
Kikuchi, T., Okazaki, M., Kimura, S. D., Motobayashi, T., Baasansuren, J., Hattori, T., & Abe, T. (2008). Suppressive effects of magnesium oxide materials on cadmium uptake and accumulation into rice grains II: Suppression of cadmium uptake and accumulation into rice grains due to application of magnesium oxide materials. Journal of Hazardous Materials, 154(1-3), 294-9.
Kikuchi T, et al. Suppressive Effects of Magnesium Oxide Materials On Cadmium Uptake and Accumulation Into Rice Grains II: Suppression of Cadmium Uptake and Accumulation Into Rice Grains Due to Application of Magnesium Oxide Materials. J Hazard Mater. 2008 Jun 15;154(1-3):294-9. PubMed PMID: 18054161.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Suppressive effects of magnesium oxide materials on cadmium uptake and accumulation into rice grains II: Suppression of cadmium uptake and accumulation into rice grains due to application of magnesium oxide materials. AU - Kikuchi,Tetsuro, AU - Okazaki,Masanori, AU - Kimura,Sonoko Dorothea, AU - Motobayashi,Takashi, AU - Baasansuren,Jamsranjav, AU - Hattori,Takayuki, AU - Abe,Toshio, Y1 - 2007/10/13/ PY - 2007/05/08/received PY - 2007/10/08/revised PY - 2007/10/08/accepted PY - 2007/12/7/pubmed PY - 2008/7/30/medline PY - 2007/12/7/entrez SP - 294 EP - 9 JF - Journal of hazardous materials JO - J Hazard Mater VL - 154 IS - 1-3 N2 - The objective of this study is to assess the applicability of a commercial magnesium oxide (MgO) and a composite material containing MgO and natural minerals ('MgO-SH-A') as the soil amendments for suppression of cadmium (Cd) uptake and accumulation into rice grains. A cultivation experiment of rice plants (Oryza sativa L. cv. Kinuhikari) was conducted in an actual Cd-contaminated alluvial paddy field to evaluate the effectiveness of these materials. The 'plant available' fractions of Cd in the paddy soil significantly decreased by application of commercial MgO at 2250 kg ha(-1) or MgO-SH-A at 4500 kg ha(-1). These decreases would be primarily attributed to the increase in soil pH due to applications of the MgO materials because these soil Cd fractions were significantly negatively correlated with the soil pH. Even under a suppressive condition for Cd uptake by rice plants, i.e., continuous flooding of the paddy field around the heading stage, applications of these materials further reduced Cd concentration in brown rice as compared to that from the control. It was concluded that the two MgO materials examined would be effective in preventing Cd contamination of rice grains grown in Cd-polluted paddy fields. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/18054161/Suppressive_effects_of_magnesium_oxide_materials_on_cadmium_uptake_and_accumulation_into_rice_grains_II:_Suppression_of_cadmium_uptake_and_accumulation_into_rice_grains_due_to_application_of_magnesium_oxide_materials_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(07)01464-1 DB - PRIME DP - Unbound Medicine ER -