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Adsorption and Leaching Characteristics of the Insecticide Imidacloprid in Paddy Soils
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 Title & Authors
Adsorption and Leaching Characteristics of the Insecticide Imidacloprid in Paddy Soils
Ihm, Yang-Bin; Kyung, Kee-Sung; Kim, Chan-Sub; Lee, Hee-Dong; Ryu, Gab-Hee; Lee, Jae-Koo;
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 Abstract
In order to elucidate the adsorption and leaching characteristics of the insecticide imidacloprid in two types of paddy soils near Suwon, this experiment was carried out with imidacloprid as a radiotracer. In an adsorption study conducted using imidacloprid in 2 test soils, the adsorption coefficient was higher in soil A than that in soil B . As calculated from Freundlich constant, distribution coefficients and half lives in soils, GUS indices showed low leachabilities of imidacloprid treated on the paddy soils into the groundwater. The amount of imidacloprid leached from the soil columns during the 4 weeks of leaching was less than 2% of the originally treated . In the leaching test the amounts of activities distributed in the soil layer of 0-10 cm were more than 80% of the originally tented and those in rice plants were less than 3% of the originally treated , suggesting that imidacloprid has very low teachability and bioavailability.
 Keywords
pesticide;adsorption;leaching;Groundwater Ubiquity Score (GUS);
 Language
Korean
 Cited by
1.
살충제 imidacloprid의 붕어(Carassius auratus L.)중 행적 및 장기에 대한 독성,임양빈;김찬섭;이희동;김대규;경기성;

농약과학회지, 2006. vol.10. 4, pp.289-295
2.
Researches Using Radio-labelled Insecticides in Korea,;

한국환경농학회지, 2007. vol.26. 4, pp.351-363 crossref(new window)
3.
토양 중 농약의 동태,이규승;

농약과학회지, 2010. vol.14. 3, pp.303-307
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