훈증성 약제 처리용 토양 소독기의 홍천 지역 인삼 재배 포장에서 뿌리썩음병과 뿌리혹선충 방제 효과
Efficacy of Soil Disinfection Machine for Fumigants to Cylindrocarpon and Root Rot Disease on Ginseng at Hongcheon Area
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초록
인삼 뿌리썩음병균(Cylindrocarpon destructans)과 뿌리혹선충(Meloidogyne spp.)은 국내 인삼(panax ginseng C. A. Meyer) 연작장해의주요인으로, 인삼 생산성 향상을 위해 방제가 필요하다. 본 연구는 새로 개발한 액제 훈증성 토양 소독제를 살포하며 동시에 비닐피복이 가능한트랙터부착형 토양 소독기를 이용하여 dimethyl disulfide (DMDS)를 처리하였을 때, C. destructans와 뿌리혹선충의 방제효과를 분석하고, 시작기의 성능을 확인하기 위해 수행하였다. 토양 소독기를 이용하여 인삼 재배 포장에 DMDS를 처리한 후 비닐이 피복된 상태에서 5주간 훈증하였다. 토양 소독기의 성능은 약제 살포량 오차 2.5%, 작업능률 0.9h/10a로 40%의 노력절감 효과가 있는 것으로 나타났다. 또한, 처리 전후 C. destructans 의 밀도를 분석한결과 82.5%의 밀도 억제 효과가 있는 것으로 나타났으며, 뿌리혹선충 방제효과는 100%로 나타났다. 따라서, 본 토양 소독기시작기를 이용하여 능률적으로 DMDS를 처리할 수 있으며, C. destructans와 뿌리혹선충의 방제효과를 볼 수 있는 것으로 판단된다.
Abstract
Cylindrocarpon destructans and root-knot nematode (Meloidogyne spp.) are the main factors of replant failure on ginseng (panax ginseng C. A. Meyer) cultivation in Korea. To increase productivity efficiently, control methods for C. destructans and root-knot nematode population density in soil is required. This study was conducted to evaluate control effect of C. destructans and root-knot nematode by a prototype soil disinfection machine which performs spraying fumigants and mulching simultaneously. Dimethyl disulfide (DMDS) was treated using the machine and fumigated for 5weeks. Error of application rate of fumigants was 2.5% and working capacity of the machine was 0.9h/10a and it saved 40% of labor force. C. destructans and root-knot nematode were suppressed 82.5%, 100%, respectively. Therefore, these results showed that DMDS can be treated effectively with the soil disinfection machine with high control effects for C. destructans and root-knot nematode.
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