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http://dx.doi.org/10.5338/KJEA.2009.28.1.082

Comparison of 14C-radioactivity in rice-paddy soil exposed to atmospheric and elevated CO2 conditions after 14C-carbaryl treatment  

Kim, Han-Yong (Division of Plant Biotechnology, Chonnam National University)
Kim, Seon-Hwa (Division of Applied Bioscience and Biotechnology, Institute of Agricultural Science and Technology, College of Agriculture and Life Sciences, Chonnam National University)
Kim, Hyang-Yeon (Division of Applied Bioscience and Biotechnology, Institute of Agricultural Science and Technology, College of Agriculture and Life Sciences, Chonnam National University)
Kim, Seul-Ki (Division of Applied Bioscience and Biotechnology, Institute of Agricultural Science and Technology, College of Agriculture and Life Sciences, Chonnam National University)
Kim, In-Seon (Division of Applied Bioscience and Biotechnology, Institute of Agricultural Science and Technology, College of Agriculture and Life Sciences, Chonnam National University)
Publication Information
Korean Journal of Environmental Agriculture / v.28, no.1, 2009 , pp. 82-85 More about this Journal
Abstract
This study was performed to investigate if elevated $CO_2$ affects the residue pattern of $^{14}C$ in the soil environment after $^{14}C$-carbaryl treatment $^{14}C$-carbaryl was applied on the rice plant-grown greenhouse soil exposed to atmospheric and elevated $CO_2$ conditions. $^{14}C$-radioactivity was measured in the rhizospheric soil and rice straw samples six months after $^{14}C$-carbaryl application. Significantly high radioactivity was observed in the soil exposed to atmospheric $CO_2$ as compared to that in the soil exposed to elevated C(h. Background level of radioactivity was observed in rice plant samples. These observations suggest the possibility that elevated $CO_2$ may affect residual radioactivity of $^{14}C$-carbaryl in the soil rather than that in the plant.
Keywords
carbaryl; elevated $CO_2$; global warming; pesticide; rice;
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