• Title/Summary/Keyword: Rural environment

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Phylogenetic analysis and biological characterization of Stemphylium species isolated from Allium crops

  • Chang-Gi Back;You-Kyung Han;Walftor Bin Dumin;Jong-Han Park;Ji-Won Han;Yeoung-Seok Bae
    • Korean Journal of Agricultural Science
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    • v.49 no.1
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    • pp.113-120
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    • 2022
  • Leaf blight disease caused by Stemphylium species is an important disease in Allium crops, specifically onion, garlic and welsh onion. In 2018, leaf blight symptoms were severe and damaged onion and garlic in Jeonnam province in Korea. In addition, small purple spots on garlic burbs were observed in a post-harvest storage warehouse. Several Stemphylium isolates were isolated from diseased leaves from the field and from garlic bulb samples and were analyzed in terms of homology and the phylogenetic relationship based on the internal transcribed spacer region and calmodulin gene sequence. The results showed that among three Stemphylium species identified, S. vesicarium is most prevalent on onion and garlic. S. eturmiunum was for the first time identified as pathogenic to onion and garlic, whereas S. solani was found in welsh onion crops. Although these isolates grew well at the optimum temperature at 20 - 25℃, they could also grow at low temperatures of 10 - 15℃. A pathogenicity test was conducted using S. vesicarium and S. eturmiunum on onion and garlic respectively. These results showed that two Stemphylium species were highly virulent with cross pathogenicity in onion and garlic. The results of this study can support the biological characterization of Stemphylium species in Korea. Moreover, further research will need to develop fungicide application strategies for onion and garlic crops.

Effects of Different Nitrogen Application Levels on Yield and Protein Content of Rice Varieties in Korea

  • Jinseok Lee;Jong-Seo Choi;Shingu Kang;Dae-Woo Lee;Woonho Yang;Seuk-Ki Lee;Su-Hyeon Sin;Min-Tae Kim
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2022.10a
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    • pp.123-123
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    • 2022
  • In order to evaluate the effect of nitrogen application levels on yield and protein content of rice varieties, a field experiment was conducted at National Institute of Crop Science of Korea in 2020. Five levels(0, 3, 5, 7, and 9 kg·10a-1) of nitrogen fertilizer were treated to six Korean rice varieties. The nitrogen uptake amount, soil nitrogen content before and after rice cultivation, milled rice yield, and protein content in head rice were analyzed. As the treatment of nitrogen fertilizer increased, the nitrogen uptake amount of plants increased significantly. However, changes in nitrogen content in the soil before and after rice cultivation were different for each cultivar. The amount of nitrogen change in the soil decreased as the amount of nitrogen application increased in the three cultivars of Haepum, Gopum, and Odae, and the other three cultivars showed the opposite trend. As a result of correlation analysis of nitrogen application amount, nitrogen uptake amount, milled rice yield, and protein content of head rice, the five varieties except for Haepum showed a high correlation between these factors. The amount of nitrogen application and nitrogen uptake of plant showed a positive correlation about the milled rice yield and protein content of head rice. In particular, the protein content in head rice appeared to be more affected by nitrogen uptake amount than nitrogen application amount. As a result of this study, the yield and protein content of rice had positive correlations with the level of nitrogen fertilizer, and had a high correlation with the nitrogen absorption of plants.

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Research on the influence of entrepreneurial environment in college students' entrepreneurial intention in rural areas (창업환경이 대학생의 농촌창업 의지에 미치는 영향에 관한 연구)

  • Yike Wang;Giyoung Chung
    • Industry Promotion Research
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    • v.9 no.2
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    • pp.185-195
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    • 2024
  • This study examines the factors influencing college students' entrepreneurial intentions in the rural entrepreneurial environment of colleges, considering the role of entrepreneurial learning as a mediator. It analyzes four key environmental dimensions: policies and regulations, entrepreneurship education, financial support, and social culture. A survey of 5 30 college students in Zhejiang Province revealed that the college entrepreneurial environment favorably impacts entrepreneurial learning and rural entrepreneurial intentions. Based on these findings, practical measures are proposed to enhance students' intentions, emphasizing personal practice, university leadership, and government support. These efforts can optimize the college entrepreneurial environment and foster higher entrepreneurial intentions among students.

Run-off Impact Assessment of the Steeped Cornfield to Small Stream

  • Shin, Joung-Du;Lee, Jong-Sik;Kim, Won-Il;Jung, Goo-Bok;So, Kyu-Ho;Lee, Jung-Teak;Lee, Myong-Sun
    • Korean Journal of Environmental Agriculture
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    • v.24 no.4
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    • pp.334-340
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    • 2005
  • This experiment was conducted to evaluate the nutrient loss and to assess the eutrophication into small stream by intensive rains in the steeped cornfield during cultivation. The crop cultivated was a soiling com (DW5969), and the experimental plots were divided into two parts that were 10 and 18% of slope degrees. The amount of T-N and T-P loss was calculated by analysis of surface run-off water quality, and was investigated the effect of eutrophication to small stream as a part of life cycle assessment (LCA) methodology application. For the surface run-off water quality, EC and T-N values were highest in first runoff event as compared to the other events and maintained the stage state with litter variations at every hour during the runoff period except for EC in the slope 18%. However, T-P concentration has been a transient stage after runoff event of July 27. Total surface run-off ratio was not significantly different with slope degrees, but amount of T-N and T-P losses at 18% of slope were high as $5.96kg\;ha^{-1}\;and\;0.65kg\;ha^{-1}$ as relative to 10% of slope degree, respectively. Furthermore, T-N losses from run-off water in the sloped cornfield 10 and 18% were approximately 9.8 and 12.5% of the N applied as fertilizer when the fertilizer applied at recommended rates after soil test, respectively. For the eutrophication impact to the small stream, it was shown that $PO_4$ equivalence and Eco-indicator value at 18% of slope degree were greater as much $6.11kg\;ha^{-1}$ and 0.81 as compared to the slope angle 10%, respectively. Therefore, it was appeared that each effect of nutrient losses, eutrophication and Eco-indicator value was enhanced according with higher slope degree.

An Empirical Satisfaction Evaluation of Rural Village Development Project through Importance and Performance Analysis (IPA기법을 활용한 전원마을 사업 만족도 평가 분석)

  • Choi, Hyo-Seung;An, Hyung-Soon
    • The Journal of the Korea Contents Association
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    • v.18 no.4
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    • pp.688-697
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    • 2018
  • The following research was conducted to encourage residents in urban areas to move to rural areas, and to improve the residential environments in those rural areas. Current policies for rural village development Project were analyzed, and policy implications were proposed. Residents in rural villages participated in a 12-question survey that asked their priorities prior to moving to the area, and factors contributing to resident satisfaction. Importance and Performance Analysis (IPA) was performed to present potential development strategies in the construction business. As a result, 'natural environment and landscapes' had the highest priority and satisfaction, whereas 'lack of public transportation and accessibility' and 'road conditions and parking facilities' had high priorities but low satisfaction levels. Thus, it is important to take nature and environment, as well as accessibility into consideration when moving to rural villages. Although this research was based on residents' bias, and the sample area was limited, these conclusions still offer important policy agreement provide of future rural villages location selection and establishment of land use planning.

A Study on the Settlement Environment and Life Satisfaction of Sub-Urban Residential Complex - Focused on the comparative analysis of Sub-Urban Residential Complex created by the government and the nongovernment - (농촌지역 전원주거단지 정주 실태 및 입주자 만족도 분석 - 전원마을조성사업지구와 일반전원주거단지의 비교.분석을 중심으로 -)

  • Cho, Young-Jae;Cho, Eun-Jung
    • Journal of Korean Society of Rural Planning
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    • v.18 no.2
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    • pp.13-26
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    • 2012
  • This study aims to present the policy issues and direction of sub-urban residential complex by analyzing the settlement environment and life satisfaction. For the purpose, 10 sub-urban residential complexes in Chungnam Province were surveyed for general situation, physical environment, social environment, economic environment. The results are as follows; 1) The satisfaction in the physical environment is more higher in case of the complex created by the public organization. 2) The physical environment is an important factor in the determinant of the settlement, while the economic environment have a relatively lower impact. 3) The residents community is the more active, the satisfaction in the social environment is the more improved. 4) The source of income or the activity of consumption doesn't have an effect on the satisfaction in the economic environment. On the basis of this study, three programs for improvement of sub-urban residential complex policy were suggested. First, the various information and counseling service should be provided to attract city dwellers. Second, the policy on the development of sub-urban residential complex has to consider residential preference factors and improve the quality of life. Third, to increase the life satisfaction, the residents community should be activated and especially the activation of community with residents in other village is very important.

A Study on the Policy for Rural Cultural Landscapes and for Enhancing the Value of the Rural Community Groves and Dangsan Groves (농촌 문화경관 관련시책과 마을숲.당산숲의 위상 제고를 위한 기초연구)

  • Choi Jai-Ung;Kim Dong-Yeob
    • Journal of the Korean Institute of Landscape Architecture
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    • v.34 no.3 s.116
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    • pp.41-58
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    • 2006
  • Rural areas dominates the country landscapes in size with less population and rich traditional heritages as well as natural landscapes. Rural community groves (RCG) and Dangsan groves have been established by community residents during a few hundred years, and most of them have been disturbed. Only a few RCGs and Dangsan groves remain for an extensive period with efforts from community residents. These remnant RCGs and Dangsan groves are highly evaluated representing Korean rural cultural landscapes. Sound understanding on the structure of the rural landscapes and their role on the rural community environment is required to provide an appropriate policy for managing rural landscapes. This study aims to understand the characteristics of RCGs and Dangsan groves in the cultural landscapes, to investigate policies and issues of the advanced countries on RCGs and Dangsan groves, and to overview domestic policies for rural landscapes. The study results showed that there is a close relationship between RCGs and main issues discussed in EU countries. Ministry of Agriculture & Forestry of Korea, Ministry of Environment and Rural Development Administration have to focus on the potential of RCGs and Dangsan groves for multi-functions of agricultural and rural areas, natural streams, rural amenity, direct subsidy for landscape preservation and rural tourism. Based on the findings, this study suggests that RCGs and Dangsan groves will provide benefits to develop rural-mountain-sea villages and to enhance country's landscapes as well as local landscapes.

A Study on the Direction of Rural Landscape Color Plan according to the Expert Perceptions (전문가 인식에 따른 농촌경관 색채계획 방향 설정 연구)

  • Kim, EunJa;Han, ChaeWon;Lim, ChangSu;Park, MeeJung;Choi, JinAh;Kwon, SoonChan
    • Journal of Korean Society of Rural Planning
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    • v.23 no.1
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    • pp.31-40
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    • 2017
  • People are making efforts multilaterally to create agricultural landscape beautifully. Still in farming villages, however, large-scale facilities or houses are disharmonized with natural environment because of their outer colors, mostly primary colors, not considering natural environment. The main study is done on experts' color perception. Investigation about perception of color experts ' view according to the existence of the energy business based on the color to set the direction of the rural landscape in the future. The result of the study shows that the image of the rural area is not reflected well, and the symbolic color of the rural landscape is the reverse image according to the energy business. The rural village's image in the future, "Harmonious", "Natural", "Rural" were higher Figure. There were the most important and harmony with nature. Based on such future harmony with nature in the color planning The colors match and is expected to be the color within the scope. Lack of awareness in the current farming town scenery is unsatisfactory. Awareness about the need for further improvement was higher. Therefore, color according to a harmony with nature images in accordance with the type of farming model should be planned.

Features of the Rural Revitalization Projects in Jang-su County Using LDA Topic Analysis of News Data - Focused on Keyword of Tourism and Livelihood - (뉴스데이터의 LDA 토픽 분석을 통한 장수군 농촌지역 활성화 사업의 특징 - 관광·생활 키워드를 중심으로 -)

  • Kim, Young-Jin;Son, Yong-hoon
    • Journal of Korean Society of Rural Planning
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    • v.24 no.4
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    • pp.69-80
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    • 2018
  • In this study, we typified the project for revitalizing the rural area through text analysis using news data, and analyzed the main direction and characteristics of the project. In order to examine the factors emphasized among the issues related to the revitalization of rural areas, we used news data related to 'tourism' and 'livelihood', which are the main keyword of the project to promote rural areas. In the analysis, text mining techniques were used. Topic modeling was conducted on LDA techniques for major projects in 'tourism' and 'livelihood' keyword. Based on this, this study typified the projects that are carried out for the activation of rural areas by topic. As a result of the analysis, it was fount that the topics included in the project were distributed in 11 sub-types(Tourism Promotion, Regional Specialization, Local Festival, Development of Regional Scale, Urban and Rural Exchange, Agricultural Support, Community Forest Management, Improve the Settlement Environment, General Welfare Service, Low Class Support, Others). The characteristics of the rural revitalization projects were examined, and it was confirmed that domestic projects were carried out by tourism-oriented projects. To summarize, the government is making projects to revitalize rural areas through related ministries. Within the structure where the project is spreading to the region, a lot of projects are being carried out. It is understood that the tourism and welfare oriented projects are being carried out in the revitalization project of the domestic rural area. Therefore, in order to achieve the goal of rural revitalization, it is believed that it will be effective to carry out a balanced project to improve the settlement environment of the residents.