복토살균 조건에 따른 양송이 재배과정별 복토내 미생물 밀도 및 수량 특성
Effects of microorganism density and mushroom yields according to the sterilization of casing soils at the cultivation of button mushrooms
This study was conducted to set the proper sterilization standards of casing soil for the stable production of button mushroom(Agaricus bisporus) from mushroom disease that occurs in infection of casing soil material. Changes of aerobic bacteria are increased as the longer grow-out period and sharply increased after second flushes. Fluorescence Psuedomonas showed high density at high sterilization temperature and 100oC treatment has extremely high density at 30 min and 60 min in casing 22 days. Density of thermophilic actinomyces is sharply increase from casing with soil and the highest density at 22 days of casing and rapidly decrease after first flushes. Sterilizing temperature of casing soil affects quality and quantity of button mushroom. Treatment of 60 min, 90 min at 80oC and 30 min at 100oC produced the highest mushroom yields, especially mushrooms yields of A grads were the highest at treatment of 90 min at 80oC. Treatment of 60min at 100oC products many yields, however, this treatment has low economic feasibility for its yields. Sterilizing temperature of casing soil has an effect on generating diseases and insect pests. Treatment of 60 min, 90 min at 80oC and 30 min 100oC showed lower incidence than the other treatment. Although treatment of 30 min at 100oC causes low diseases and mushroom fly damage, it has low mushroom yields. Furthermore, although treatment of 60 min at 100oC has high mushroom yields, it causes high diseases and mushroom fly damage. Therefore the best conditions for the sterilization of casing soils was 60 min and 90 min at 80oC.
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ABSTRACT 서론 재료 및 방법 시험균주 및 종균제조 배지제조 및 복토 살균 미생물 밀도조사 재배관리 결과 및 고찰 복토 살균 온도별 미생물 밀도 복토 8일 후 미생물 밀도 복토 15일 후 미생물 밀도 복토 22일 후 미생물 밀도 수확주기별 복토내 미생물 밀도 복토 살균 온도별 양송이 수량 복토 살균 온도별 양송이 병해충 발생정도 적요 감사의 말씀 참고문헌