Soil Environmental Factors Affecting Fusarium Population and Root Rot of Panax ginseng in Ginseng Fields

인삼 재배포장에서 Fusarium 밀도와 근부에 영향을 미치는 토양환경 요인

Soil environmental factors, affecting population of Fusarium spp. and root rot of Panax ginseng were investigated in the ginseng cultivated soil. In the 2-year-old ginseng cultivated soil, the number of Fusarium spp. and the amount of available phosphorus were significantly decreased as clay content was increased in the soil. Also the missing rate of ginseng plants and the amount of nitrate nitrogen appears to be decreased as clay content was increased in the soil, although, it was not statistically significant. In the 6-year-old ginseng cultivated soil, there was highly significant negative correlation(r=-0.3976, p=0.01) between the number of Fusarium spp. and that of Streptomyces spp. Relationship between root rot and the amount of available phosphorus was significantly positive (r=0.3162, p=0.05), however, there was no correlation between the two factors within same soil torture.

인삼 재배포장에서 병원균인 Fusarium spp.의 밀도와 근부에 영향을 미치는 토양환경요인을 조사하였다. 2년근 포장의 토양을 토성별로 분류하여 결주율, Fusarium spp. 밀도, 화학적 성질을 비교해 본 결과 점토 함량이 들었고 결주율과 질산태 질소는 줄어드는 경향이었으며 다른 성질은 뚜렷한 차이가 없었다. 6년근 포장에서는 근부율과 유효인산 함량이 정의 상관(r=0.3162, p=0.05)을 보였으며 Fusarium spp. 밀도와 Streptomyces spp. 밀도는 고도의 부의 상관(r=-0.3976, p=0.01)을 나타내었다.