• 한국환경농학회지
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• 제38권3호
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• pp.124-132
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• 2019

BACKGROUND: Silver grass (Miscanthus sinensis) No. 1 was developed for production of bio-ethanol, and for the purpose the silver grass growing sector was established in Geumgang basin, Iksan, Jeonbuk, in 2011. However, the other application potentials except for using as the bio-energy resources should be considered because of the drop in international oil prices. Therefore, there is the necessity of a scientific basis to use the silver grass instead of rice straw as the organic matter source that is used for improvement of soil quality in the plastic film house. METHODS AND RESULTS: The silver grass was applied at 5, 10, 15 and 20 Mg/ha and tilled before the watermelon was planted in the plastic film-house. The control plot was treated with 10 Mg/ha with rice straw, and watermelons have been cultivated for 3 years(2017~2019). Soil aggregation, soil chemistry, and the growth characteristics were investigated, when the watermelon was harvested every year. Soil aggregation levels at the 2nd and 3rd year of watermelon harvest were similar from the plot applied with the silver grass at 5 Mg/ha and the control plot, and increased in the silver grass treated plots with more than 10 Mg/ha. However, there was no statistically significant difference between the plots. The nitrogen mineralization of silver grass in the control plot tended to be similar to the 5 Mg/ha plot, but the silver grass treated plots with over 10 Mg/ha showed low nitrogen mineralization. Soil EC on harvest stage was proportional to the applied mass of the silver grass, but pH was in inverse with the applied mass. Soil organic matter content, available phosphate, and exchangeable cations increased with the continued use of silver grass. Watermelon weight found to be the best on more than 15 Mg/ha of silver grass, and the sugar content was highest when 10 Mg/ha was treated. CONCLUSION: The use of the silver grass at 10 Mg/ha annually as the organic source was effective in replacing rice straw while growing fruits and vegetables on the plastic film house.

• Mycobiology
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• 제45권1호
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• pp.39-43
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• 2017

Leaf spot disease on black chokeberry (Aronia melanocarpa) was observed at several locations in Korea during 2014-2015. Leaf spots were distinct, scattered over the leaf surface and along the leaf border, subcircular to irregular and brown surrounded by a distinct dark color, and were expanded and coalesced into irregularly shaped lesions. Severely infected leaves became dry and fell off eventually. The causative agent was identified as Pseudocercospora pyricola. Morphological observations and phylogenetic analyses of multiple genes, including internal transcribed spacer, translation elongation factor 1-alpha, actin, and the large subunit ribosomal DNA were conducted. The pathogenicity test was conducted twice yielding similar results, fulfilling Koch's postulates. To our knowledge, this is the first report on P. pyricola infection of A. melanocarpa globally.

• Journal of the Korean Data and Information Science Society
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• 제20권2호
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• pp.369-375
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• 2009

오는 2010년에는 제5회 전국동시지방선거가 실시된다. 본 연구는 이에 대한 준비의 일환으로, 2006년 5월 31일 실시된 제4회 전국동시지방선거자료(전라북도도지사 선거)를 대상으로 소지역주의가 나타났는지 알아보고자 한다. 이를 위하여 지사에 출마한 각 후보자가 지역별로 얼마나 골고루 득표했는지를 측정해 볼 수 있는 RS 지수, 후보자별 지역친밀도를 측정해볼 수 있는 카이통계량, 대응분석 등의 분석방법을 활용하였다. 그 결과 일부 후보에 대하여 지역주의가 심하게 나타나고 있음을 확인하였으며, RS 지수는 종합지수인 관계로 지역주의여부를 평가하는 측도로서의 타당도는 떨어짐을 알 수 있었다.

• Mycobiology
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• 제38권4호
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• pp.310-315
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• 2010

Agrocybe aegerita is an important mushroom cultivated in Korea, with good feel and a peculiar fragrance. A. aegerita can be cultivated throughout the year using culture bottles but is more susceptible to contamination than other mushrooms. Twenty-two pathogens were isolated from the fruiting bodies and compost of A. aegerita, and seven isolates were isolated from Pleurotus ostreatus to compare with the A. aegerita isolates, collected from Gimje, Iksan, Gunsan of Chonbuk, and Chilgok of Gyeongbuk Province in 2009. These isolates were identified based on morphological and molecular characteristics. Of the 29 isolates, 26 were identified as Trichoderma spp. and the remaining three were Aspergillus spp., Mucor spp., and Penicillium spp. A phylogenetic analysis revealed that the 26 isolates of Trichoderma were divided into four taxa, namely T. harzianum, T. pleuroticola, T. longibrachiatum, and T. atroviride. Among the Trichoderma spp., 16 isolates (55.2%) were identified as T. harzianum, six as T. pleuroticola (20.7%), two as T. longibrachiatum, and the remaining two were T. atroviride.

• 식물병연구
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• 제16권1호
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• pp.106-108
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• 2010

노지피복 재배포장과 비닐터널유인 재배포장의 재배양식별 고추 탄저병과 역병의 발생정도를 조사하였다. 비닐터널유인재배포장의 초기 생육이 노지피복재배포장(관행)보다 월등히 우세하였다. 재배 양식별 고추 주요 병해인 탄저병과 역병의 발생정도를 조사한 결과 노지피복재배포장에 비해 터널유인 재배한 포장에서 역병발생은 60.3%, 탄저병발생은 26.9% 경감효과가 있었다. 재배양식별 건과 수확량을 조사한 결과 노지피복 재배포장대비 48.5%가 많은 것으로 조사되었다.

• 수산해양기술연구
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• 제53권4호
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• pp.327-336
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• 2017

Fishing dredge in Jeollabuk-do began to become widespread in the 1960s and has continued to catch diverse kinds of shellfish in the productive fishing grounds around Dongjin River, Mangyeong River and Geum River estuaries. Since the 1970s, the construction of various large-scale industrial complex and the implementation of Saemangeum reclamation project have resulted in a decrease in main fishing areas and a sharp decline in shellfish production. As a result, dredge fishery has faced many difficulties. Dredge fishery in Jeollabuk-do is carried out with a total of 30 fishing permits as of 2016. Surf clams, hen clams, bladder moon snails, and common orient clams were mainly caught before the construction of Saemangeum dike while comb pen shells, purple whelks and ark shells are mainly caught afterwards. Inside the Saemangeum dike, most fish species have disappeared due to low water level and low salinity, and littleneck clams are caught using a jet pump type of fishing dredge. Outside the dike, the diversity of shellfish species has been reduced; comb pen shells are mainly caught. In this process, a lot of friction occurs due to the use of a reformatted dredge. Therefore, a lot of research needs to be conducted in the near future.

• 대한한의학회지
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• 제40권1호
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• pp.114-123
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• 2019

Objectives: The purpose of this study was to report the result and the satisfaction of Korean medicine treatment for patients with dysmenorrhea who participated in support program of Jeollabuk-do. Methods: The subjects of this study were 33 volunteers, suffering from primary dysmenorrhea. As the 'Dysmenorrhea Treatment Project', we conducted a dysmenorrhea program at 22 Korean medicine clinic and 1 Korean medicine hospital in Jeollabuk-do. From May to December 2018, we conducted the program and assessed the effect and satisfaction twice after first two menstrual cycles after Korean medicine treatment through questionnaire. They were treated by Korean medicine treatment such as herbal medicine, acupuncture, moxibustion, heat therapy, physical therapy and others in 2017. The results were measured by the visual analogue scale (VAS) and multidimensional verbal rating scale (MVRS) of overall pain. The disturbance in school activity for menstrual period and satisfaction of Korean medicine treatment were investigated by continuous rating scales. Results: The VAS score of overall pain was decreased significantly. Also the amount of the analgesic taken for menstrual period and the degree of disturbance in school activity were decreased significantly. Besides, the satisfaction of Korean medicine treatment was increased. Conclusions: This study might suggest that the Korean medicine treatment on dysmenorrhea is effective.

• 한국자원식물학회지
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• 제35권6호
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• pp.820-824
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• 2022

Ecologically sustainable means of development is the point to support environmental homeostasis. One of our roles is to find bio-degradable resources that can be substituted for petroleum-based products to effectively abide by the natural viability. To counter the issues of deforestation and preserve biodiversity, it is necessary to produce a non-wood crop that can fulfill the requirement for raw material from which several products can be produced. Kenaf (Hibiscus cannabinus), a member of the family Malvaceae, is showing sufficient potentiality along this road-map. Due to its rich fiber content, it has been used extensively in various fields for long, probably as early as 4,000 BC. At present, kenaf has been used as provider of paper, plastics, fiber glass, biofuel, activated carbon and epoxy composite. This obviously catch one's attention towards its capability to replace petroleum-based products as a whole. Moreover, the plant shows considerable relevance in decreasing pollutants by virtue of its enormous absorption capacity. These multiple applications of kenaf justify its credibility to be the best resource for the better world. The paper presents an overview on its numerous uses reported in the literature that we have investigated and its great potential as a valuable multipurpose crop.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2020년도 춘계학술대회
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• pp.26-26
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• 2020

Daphne L. (Thymelaceae) comprises about 95 species distributing worldwide from N Africa, N India, SE Asia to E Asia and the coast of the Mediterranean of Europe. In Korea, five species of this genus have been described. In this study, we included four species (D. genkwa, D. pseudomezereum, D. kiusiana, D. jejudoensis) from Korea, excluding cultivated D. odora. The morphological characters through local surveys and the re-classification of the specimens collected in the Korea National Herbarium (KH) were carried out and distribution maps for each taxon were also prepared. The major characters include habit, trichomes in winter bud, leaf, and twig, phyllotaxis, inflorescence, size of calyx lobe and trichomes in the calyx tube, etc. The distribution map showed that D. genkwa is mainly distributed in the coastal area of Hwanghaenam-do, Pyeongannam-do, Jeollabuk-do and Jeollanam-do, whereas D. pseudomezereum is distributed in the limestone zone of Gangwon-do, Jeollabuk-do, and Gyeongsangbuk-do. Similarly, D. kiusiana is mostly found in Jeollanam-do, Gyeongsangnam-do, and Jeju-do. In addition, D. jejudoensis is known to be distributed in forests of Murueng, Andeok, and Seonheul-ri in Jeju-do, but recently, new habitat is discovered in the island forest areas of Jeollanam-do. However, some of these individuals showed the characteristics of D. kiusiana, thus before come to any conclusion detailed taxonomic review of D. jejudoensis and D. kiusiana is required.

• 한국작물학회지
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• 제57권4호
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• pp.456-462
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• 2012

친환경 식품이 소비자의 마음을 사로잡으면서 농업의 목표가 생산성 유지 및 향상과 환경의 질을 보존하는 새로운 패러다임으로 변화하고 있다. 따라서 환경친화적 농업(environmentally sound agriculture)이 강조되면서 친환경쌀 생산단지에서 공동으로 이용하고 있는 포트육묘 재배가 농가관행 산파육묘 재배에 비해 얼마나 효율적인지 경제성을 분석한 결과는 다음과 같다. 1. 포트육묘 이앙은 관행이앙 방법에 비해 이앙모판, 파종 및 이앙기 등의 가격이 245% 높았다. 따라서 감가상각비 역시 관행농법에 비해 포트육묘 이앙에서 1.9배 높았다. 2. 10a 당 투입된 노동시간, 노동력 및 비용은 포트육묘 이앙재배에서 각각 13%, 4% 높았다. 그러나 이앙 및 재배에 투입되는 농자재는 종자 및 상토비를 각각 44.0%와 49.2% 절감할 수 있기 때문에 관행농법 대비 4.4% 낮았다. 3. 또한, 포트육묘 이앙재배는 관행 산파육묘 이앙재배에 비해 수량증수에 의한 조수입의 증가(6.7%)와 이앙 후 초기 활착이 빠르고, 성묘이앙으로 초기생육이 양호하여 잡초방제에 유리한 점은 친환경 벼 재배에 적합한 요인으로 작용하였다. 4. 10a 당 육묘와 이앙단계에서의 경영비는 포트육묘 이앙재배에서 229.8% 높았으나 정부에서 80% 기기보조가 된 경우 관행 산파육묘 이앙재배 대비 경영비가 45.4% 절감되었다.