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논문 기본 정보

자료유형
학술저널
저자정보
Ha-il Jung (Rural Development Administration) Mi-Jin Chae (Rural Development Administration) Tae-Gu Lee (Rural Development Administration) Jung-Hwan Yoon (Kangwon National University) Myung-Sook Kim (Rural Development Administration) Sangho Jeon (Rural Development Administration) Hyuck Soo Kim (Kangwon National University)
저널정보
한국토양비료학회 한국토양비료학회지 한국토양비료학회지 제54권 제4호
발행연도
2021.11
수록면
601 - 609 (9page)

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이 논문의 연구 히스토리 (7)

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Arsenic (As) contamination in agricultural soils causes adverse influences on crop growth and yield, and serious human health issues. The objectives of this study were to (a) verify the change of chemical properties under different As contaminated soils, (b) compare the growth and yield of rice grown in different concentrations of As-contaminated soil, and (c) investigate the relationship between total As and phytoavailable As concentrations in the soil and As concentrations accumulated in the polished rice. Rice plants were cultivated in a greenhouse under six As concentrations: 6 (control), 25, 34, 42, 50, and 59 mg kg<SUP>-1</SUP>. Soil As concentration showed significant positive correlations with NH₄-N, available P₂O<SUB>5</SUB>, and exchangeable K. A significant negative correlation was indicated between soil As concentration and NO₃-N, whereas no significant correlation was found between soil As concentration and total N. Increased soil arsenic decreased plant heights and number of tillers; caused yield reduction depending on the increasing As concentrations in soils. The yield of As-exposed rice plants was 38 - 90% less than that of untreated plants. This was mainly due to the reduced number of panicles per plant and spikelets per panicle. We also found that total and phytoavailable As concentrations in the soil for the edible limit of As in polished rice (0.2 mg kg<SUP>-1</SUP>) were 21.85 and 1.04 mg kg<SUP>-1</SUP>, respectively.

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ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusions
References

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