논문 상세보기
pp.248-253
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.
서 언
재료 및 방법
1. 시험토양
2. 토양훈증
3. 녹비작물 재배
4. 인지질 지방산 (Phospholipid fatty acid, PLFA) 분석
5. 토양 이화학성 분석
6. 인삼 재배관리
7. 인삼뿌리썩음병원균 밀도 분석
8. 인삼 생육특성 및 뿌리썩음병 발생량 조사
9. 통계분석
결과 및 고찰
1. 녹비작물 옥수수의 생육특성
2. 토양 이화학성의 변화
3. 토양 미생물상의 변화
4. 인삼의 생육특성 및 뿌리썩음병 발생율
5. 인삼뿌리썩음병원균의 밀도 변화
REFERENCES
