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KMID : 1098420150230030223
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Korean Journal of Medicinal Crop Science
2015 Volume.23 No. 3 p.223 ~ p.230
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Inhibition Effect on Root Rot Disease of Panax ginseng by Crop Cultivation in Soil Occurring Replant Failure
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Lee Sung-Woo
Lee Seung-Ho
Park Kyung-Hoon
Jin Mei-Lan
Jang In-Bok
Kim Ki-Hong
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Abstract
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To study the effect of crop rotation on the control of ginseng root rot, growth characteristics and root rot ratio of 2-year-old ginseng was investigated after the crops of 18 species were cultured for one year in soil contaminated by the pathogen of root rot. Fusarium solani and Cylindrocarpon destructans were detected by 53.2% and 37.7%, respectively, from infected root of 4-year-old ginseng cultivated in soil occurring the injury by continuous cropping. Content of NO3, Na, and P2O5 were distinctly changed, while content of pH, Ca, and Mg were slightly changed when whole plant of crops cultured for one year were buried in the ground. All of EC, NO3, P2O5, and K were distinctly increased in soil cultured sudangrass, peanut, soybean, sunnhemp, and pepper. All of EC, NO3, P2O5, and K among inorganic component showed negative effect on the growth of ginseng when they were excessively applied on soil. The growth of ginseng was promoted in soil cultivated perilla, sweet potato, sudangrass, and welsh onion, while suppressed in Hwanggi (Astragalus mongholicus), Deodeok (Codonopsis lanceolata) Doraji (Platycodon grandiflorum), Gamcho (Glycyrrhiza uralensis), Soybean. All of chicory, lettuce, radish, sunnhemp, and welsh onion had effective on the inhibition of ginseng root rot, while legume such as soybean, Hwanggi, Gamcho, peanut promoted the incidence of root rot. Though there were no significant correlation, NO3 showed positive correlation, and Na showed negative correlation with the incidence of root rot.
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KEYWORD
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Crop Rotation, Cylindrocarpon destructans, Panax ginseng, Root Rot
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