• Journal of Mushroom
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• 제14권4호
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• pp.168-173
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• 2016

Four fungal species, during indoor air monitoring for fungi that possibly affect the field testing of a newly bred shiitake cultivar in cultivation houses located in Cheongyang, Chungnam Province and Jangheung, Jeonnam Province. Of these species, two are known to be plant pathogens and the other two are saprobes but potent contaminators in the mushroom cultivation environment. This study reports the morphological characteristics and phylogenetic relationships of these four species based on nucleotide sequences of the internal transcribed spacer (ITS) and 18S rDNA region, including their known information.

• Journal of Korean Society of Forest Science
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• 제98권6호
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• pp.748-756
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• 2009

The key for cultivating Lentinula edodes in sawdust bags with an appropriate strain and medium is to encourage the mushroom growth, while discouraging contaminating fungi by controlling environment, especially temperature and relative humidity (RH). To investigate the daily and seasonal fluctuation of temperature and RH in two L. edodes cultivation sheds types, HOBO data loggers was set and the collected data were analyzed. In a Taiwan type L. edodes cultivation shed, temperature and humidity changes were divided into five characteristic periods: mycelium growing winter, mushroom fruiting spring, mushroom fruiting early summer, mushroom nonfruiting summer and mushroom fruiting autumn. First, the mycelium growing winter was December to early March with daily mean temperature of $-1{\sim}8^{\circ}C$. Second, mushroom fruiting spring was mid March to late May with daily mean temperature of $8{\sim}21^{\circ}C$ and day-night temperature difference of $15^{\circ}C$. Third, the Mushroom fruiting early summer was early June to early July with 17 to $25^{\circ}C$. Fourth, nonfruiting summer was mid July to mid August with daily mean temperature of $25{\sim}28^{\circ}C$. Lastly, mushroom fruiting autumn was late August to October with daily mean temperature of $10{\sim}23^{\circ}C$ and with cyclic temperature change by $7^{\circ}C$ decrease and 5 increase every 5 to 7 days. In a Chinese type shed, temperature ranged $-1.9{\sim}5.0^{\circ}C$ during winter and $15{\sim}32^{\circ}C$ during June to October. Temperature and relative humidity changed $12{\sim}30^{\circ}C$ and 40~100%, respectively, depending on 0~150 cm shelf heights of by positions in the shed. In conclusion, to grow L. edodes but to discourage contaminating fungi, that is, not to be too high in temperature and RH, the growers changed temperature and RH by adjusting shading, aeration and insulation in the shed.

• Korean Journal of Weed Science
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• 제13권2호
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• pp.122-131
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• 1993

Differences in competitive characteristics for mineral nutrition were compared with rice and weeds according to rice planting types like the traditional hand transplanting, machine transplanting of young(10days old) and mature(30days old) seedling, flood direct seeding of germinated seeds and dry direct seeding of dry seeds. There was a slight competition for such nutrients as N, P, K, Ca, and Mg by E. crus-galli and E. kuroguwai in transplanting cultivations. However, nutrient uptake by rice in direct-seedings was severely inhibited throughout the whole growth period by the two weeds including annual weeds such as S. Juncoides and C. difformis. The competition for nutrients at different cultivation types was mainly governed by the dominant weeds.

• Journal of Mushroom
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• 제20권3호
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• pp.127-137
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• 2022

Effects of substrate bed interior environments on mushroom qualities were investigated in oyster mushroom cultivation facilities in which either Reversible Air-Circulation Fans (RACF) blowing air in two directions (upwards and downwards) or customary Convection Fans (CF) with air blowing only upwards were operated throughout the cultivation period. Two days before harvest, the deviation ranges of the bed interior temperature and relative humidity in the facility using RACF were in the ranges of 1.0-1.3℃ and 7.8-9.0% in the first growing cycle, and within 0.7-1.1℃ and 10.0-11.4% in the second cycle. In the facility using CF, the ranges of variation in the indoor environment parameters (5.8-6.4℃ and 21.3-23.1% in the first growing cycle, and 3.4-5.7℃ and 14.6-18.3% in the second growing cycle) were much enlarged compared to those associated with RACF. These results strongly indicate that RACF significantly enhances air uniformity. Some mushroom qualities differed between growing cycles. For instance RACF in the first cycle gave somewhat better qualities than CF, but some qualities, like pileus diameter and stipe length, were slightly lower than those described for CF in the second cycle when the cultivation substrate weakened. The observation that some qualities worsened under RACF conditions, despite better air uniformity during the growing cycle, revealed the possibility that downward wind may exert a non-negligible negative effect on mushroom growth. Therefore in the future, making wind measurements on the interior and exterior of substrate beds is necessary to obtain insights into their influences on mushroom qualities. The RACF operation manual needs to be edited to convey this necessity.

• Journal of Mushroom
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• 제17권4호
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• pp.179-184
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• 2019

This study was conducted to investigate the diversity of culture-dependent fungal species in the sawdust media of Lentinula edodes. A total of 405 fungi were isolated from the specimens and identified to belong to 24 genera and 42 species. Among the identified 42 species of fungi, 26.2% belonged to Penicillium sp., 9.5% belonged to Trichoderma sp., and 64.3% belonged to others. Especially, Trichoderma harzianum, which is a causal agent of fungal disease in mushroom, was found on all the farms, and showed the highest frequency among the identified fungi. Community analysis showed that the fungal diversity patterns of the samples were similar to each farm and many kinds of fungi existed in the sawdust media at high levels. These results showed that the management of internal environments would be required for the stable cultivation of Lentinula edodes.

• Landscaping Tree
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• 통권128호
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• pp.22-27
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• 2012

예로부터 인심 좋고 살기 좋은 순천고을을 찾았다. 순천은 조경수산업의 오랜 역사성을 가진 고장이다. 20여년째 철쭉류 및 다양한 관목을 재배하는 최순호 대표님 농장을 찾았다. 대표님은 현재 순천만 유통센터 영농조합 이사이며 순천지역의 품질 좋고 경쟁력 있는 조경수 생산을 이끌어 나가는 주인공으로 올해 농림수산식품부장관 표창을 수상한바 있다.

• Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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• 한국식품저장유통학회 2007년도 학술발표회
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• pp.186.1-186.1
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• 2007

• Landscaping Tree
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• 통권120호
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• pp.17-22
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• 2011

최신예 국산 전투기들이 푸른 창공을 가르며 힘찬 굉음을 내는 곳. 공군 비행장과 공항으로 이름난 서부 경남의 끝자락 사천시에 자리한 경남 조경수유통센터 조합장이며 조경수 재배는 물론 설계, 시공과 조경 시설물 제조 공장까지 두루 갖춘 복합 조경의 선두 주자인 이성기 대표의 우정건설 조경을 찾았다.

• Proceedings of the Korean Society of Organic Agriculture Conference
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• 한국유기농학회 2009년도 하반기 학술대회
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• pp.57-76
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• 2009

• 환경사랑
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• 통권27호
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• pp.8-9
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• 2001

올해 초 딸기 포장 스티로폴 상자 구입에 대한 국고지원금은 농림부가 중단하겠는 방침을 밝혀 재배농가와 관련 업계가 크게 반발하고 있다. 농림부의 이러한 방침에 대한 적극적인 대응을 해오고 있는 협회 최주섭 전무의 주장을 통해 농림부 국고지원금 중단 방침의 문제점과 그 해결 방안에 대해 알아보았다.