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KMID : 1098420180260030248
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Korean Journal of Medicinal Crop Science
2018 Volume.26 No. 3 p.248 ~ p.253
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EffectofSoilFumigationandMaizeCultivationon ReductionofReplantFailureinGinseng Sung Woo Lee†, Seung Ho Lee, Moon Won Seo, In Bok Jang, In Bae Jang, Jin Yu, Ji Won Moon and Soo Jung Suh
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Lee Sung-Woo
Lee Seung-Ho
Seo Moon-Won
Jang In-Bok
Jang In-Bae
Yu Jin
Moon Ji-Won
Suh Soo-Jung
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Abstract
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Background: Dazomet are widely used as soil fumigant to solve soilborne problems, and the degradation intermediates are toxic to nematodes, fungi, bacteria, insects and weeds.
Methods and Results: The effects of cultivation of green manure crop, maize before and after soil fumigation on the control of ginseng root rot disease were compared using soil where 6-years-old ginseng was harvested. Fumigant (dazomet) were used for soil fumigation in May and September, respectively. Maize was grown for soil management before and after soil fumigation. After May fumigation, the sowing date of maize was delayed by 15 days and thus its dry weight was decreased significantly. Maize cultivation after May fumigation increased pH but decreased EC, NO3, P2O5, and K significantly. Maize cultivation after May fumigation decreased fungi population and the ratio of fungi and bacteria. Growth of 2-years-old ginseng was improved and the incidence of ginseng root rot was significantly decreased by maize cultivation after May fumigation. After harvesting 2-years-old ginseng, the population of Cylindrocarpon destructans was not different between treatment of May and September, but Fusarium solani showed a significant increase in September fumigation after maize cultivation.
Conclusions: Maize cultivation after soil fumigation was effective in inhibiting ginseng root rot by the amendment of mineral composition and microorganism in fumigated soil.
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KEYWORD
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Panax ginseng C. A. Meyer, Maize Cultivation, Replant Failure, Soil Fumigation, Soil Microorganism
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