• Title/Summary/Keyword: sustainable agriculture

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Effective Control Strategy against Bacterial Blight on Carrot (당근 세균잎마름병에 대한 효과적 방제 수단)

  • Hyun Su Kang;Mi-Jin Kim;Yong Ho Shin;Yong Chull Jeun
    • Research in Plant Disease
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    • v.29 no.4
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    • pp.405-413
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    • 2023
  • Bacterial blight of carrot caused by Xanthomonas hortorum pv. carotae (Xhc) is one of the serious diseases of carrot, of which control measures has not been still established in the domestic farm. In this study, in order to select effective sterilizer for bacterial blight of carrots, three antibiotics such as streptomycin, oxolinic acid, kasugamycin, two copper compounds like copper hydroxide and copper sulfate basic and three rhizobacteria Burkholderia gladioli MRL408-3, Pseudomonas fluorescens TRH415-2 and Bacillus cereus KRY505-3 were selected to investigate their direct antibacterial effects using artificial media, aiming to identify effective pesticides against Xhc. Among them, treated medium with antibiotics such as streptomycin, oxolinic acid, and the antagonistic rhizobacteria MRL408-3 were formed inhibition zone. The agrochemicals and the rhizobacteria MRL408-3, which showed antibacterial effects on carrot leaves, pre-treated on the carrot leaves and then inoculated with Xhc. High control effects were shown on the carrot leaves pre-treated with both streptomycin and oxolinic acid. Scanning electron microscopy images of the carrot leaf surfaces showed that the population of bacteria decreased significantly on leaves pre-treated with streptomycin and oxolinic acid. From these results, it can be inferred that antibiotics like streptomycin and oxolinic acid exhibit superior control effects compared to other agents. This study provides valuable insights towards establishing an effective control system for bacterial blight of carrot.

Competitiveness of 'Saemi' in Sacheon Alluvial Fan as a Cultural-ecological Niche (문화생태적 적소로서 사천 선상지 '새미'의 경쟁력)

  • Dohyun Kim;Myeongcheol Jeong;Kichun Seo
    • Journal of Environmental Impact Assessment
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    • v.32 no.6
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    • pp.516-532
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    • 2023
  • This study is the result of analyzing the distribution of 129 Saemies discovered based on field research conducted from September 2021 to June 2023 in the Sacheon alluvial fan area through ethnoscience and niche theory. The researcher viewed the Sacheon alluvial fan area as a suitable location for irrigation where both traditional and modern hydraulic facilities are used, and the cultural and ecological study of 'Saemi', a traditional irrigation facility that attracts attention for its public value for the ecological environment according to the sustainable paradigm. By revealing its competitiveness, we aimed to contribute to finding ways to sustainably conserve and utilize Saemi. As a result of the study, Saemi is confirmed to be a competitive water facility in terms of cultural and ecological quality, considering the direction of the times and the sustainable development. If environment-friendly agricultural technology is applied to traditional water treatment facilities in the context of sustainable agriculture, it is expected that synergy will be created in productivity, public interest, and sustainability.

Policy Issues and Directions for Developing Green Tourism (녹색농촌 조성사업의 정책과제와 발전방향)

  • Kim, Ho
    • Korean Journal of Organic Agriculture
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    • v.11 no.4
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    • pp.1-13
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    • 2003
  • Several policy measures related to green tourism have been enforced from 2001 by Ministry of Agriculture and Forestry (MAF). Rural Development Administration(RDA). Ministry of Environment(ME) and Ministry of Government Administration and Home Affairs(MGAHA). These have to be introduced and managed of their own accord and autonomously. Also, the rural community that has been promoting green tourism must be harmonized with its natural environment, namely natural scenery and rural culture, which provide urban residents with amenity and rurality. So green tourism had better be based on environmental-friendly agriculture because it offers safe foods and areas, many creatures to see and play around. To manage green tourism sustainable, it if important for rural and urban residents to come into close relation and to trade in organic products each other. Lastly, the region bounds in green tourism have to be expanded into county(Gun) unit.

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Effects of Alfalfa Cultivation on Soil Erosion and Maize Production in Highland Agriculture (고랭지 농업에서 알팔파 재배가 토양유실 및 옥수수 생산에 미치는 영향)

  • Bak, Gyeryeong;Lee, Jeong-Tae
    • Journal of Environmental Science International
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    • v.30 no.2
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    • pp.145-152
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    • 2021
  • Soil conservation management is necessary for sustainable agriculture, in highland areas, and cover crops are one of the best soil conservation methods for slopes. In this study, we evaluated the effects of alfalfa cultivation on maize production, as well as soil conservation and quality. There was an outstanding soil conservation effect with alfalfa cultivation in the fallow and maize growing seasons. In particular, alfalfa cultivation reduced soil loss by up to 98% compared with bare field. It also increased the activities of soil microorganisms and the supply of organic matter. Maize production with alfalfa cultivation showed no significant differences in yield. In conclusion, alfalfa is an advantageous perennial cover crop in highland agricultural slope areas, which can have positive effects on soil quality and conservation, as well as maize production.

Directions for the Soil Revitalization Movement in Agriculture (흙 살리기운동의 효율적 추진방안)

  • Chung, Jin-Seok
    • Journal of Agricultural Extension & Community Development
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    • v.3 no.2
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    • pp.211-218
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    • 1996
  • The soil revitalization movement is the important approach to intensify the agricultural production and sustainable agriculture for the future. The soil have been polluted by abusing chemical fertilizer and inflow foul water from factories and houses during the last three decades. That`s not only farmer`s responsibility but all of us. The cooperative efforts are needed to preserve soil and environment.

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Foodstuffs sovereignty and agflation (기획특집: 식량주권과 애그플래이션)

  • Kim, Dong-Soo
    • Journal of the Korean Professional Engineers Association
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    • v.44 no.5
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    • pp.21-25
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    • 2011
  • Food sovereignty is the right of peoples to healthy and culturally appropriate food produced through ecologically sound and sustainable methods, and their right to define their own food and agriculture systems. An increase in the price of food that occurs as a result of increased demand from human consumption and use as an alternative energy resource. Furthermore, agflation, a combination of the words "agriculture" and "inflation", will also affect non-vegetative foods as the price increases for grain will make livestock feed more expensive as well. Food sovereignty implies new social relations free of oppression and inequality between men and women, peoples, racial groups, social classes and generations.

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Research of Management Plan for Sustainable Community Garden in Apartment Complex - Focused on Comparison General Apartment Complex and Public Lease Apartment Complex - (지속가능한 공동주택단지 커뮤니티 가든 조성 및 운영방안 연구 - 민간분양단지 및 공공임대단지의 비교분석을 중심으로 -)

  • Oh, Jooseok;Min, Byunghak;Choi, Jungmin;Kim, Seiyong
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.34 no.4
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    • pp.57-67
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    • 2018
  • The Purpose of this study was to enhancing sustainable participation of community gardeners by comparing general apartment complex with public lease apartment complex by drawing indices for quantitative research. This research carried out interviews and statistical research with 319. The results revealed statistically difference between 2 types of apartment, and satisfactions and intention of continuous participation is also different from each sustainable in participating in community garden are also different from each type. Overall, however, participation of female citizens, public assistance, area of plot, and effectiveness of exchange can enhance participants' continuous participation.

Emergy Evaluation of Korean Agriculture (한국 농업의 에머지 평가)

  • Kang, Daeseok
    • Journal of Environmental Science International
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    • v.26 no.9
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    • pp.1087-1099
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    • 2017
  • Emergy methodology was used to analyze the biophysical basis of Korean agriculture and assess its sustainablility. Total yearly emergy input into Korean agriculture was $7.72{\times}10^{22}sej/yr$ in 2013. Purchased inputs were the dominant emergy source, accounting for 90.1% ($6.95{\times}10^{22}sej/yr$) of the annual input. This clearly indicates that the Korean agriculture is a modern, industrialized system that depends mostly on market goods and services derived from nonrenewable resources. The monetary equivalent of the total emergy input was 18.9 trillion \/yr, 1.5 times greater than the total production cost from farm expense surveys. Emergy return on investment of Korean agriculture was low, with an emergy yield ratio of 1.11. Korean agriculture appears to exert pressure on the environment as revealed by the high environmental loading ratio of 9.30. With very low emergy input from renewable sources (9.7%) and high environmental pressure, Korean agriculture is not sustainable, with an emergy sustainability index of 0.12. This study suggests that higher use efficiency of and lower dependence on nonrenewable purchased inputs need to be prioritized in an effort to enhance the sustainability of Korean agriculture.

Eco-efficiency Analysis of Organic Agriculture in Korea

  • Kim, Chang-Gil;Jeong, Hak-Kyun
    • Korean Journal of Organic Agriculture
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    • v.19 no.spc
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    • pp.87-91
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    • 2011
  • Eco-efficiency which is calculated by dividing economic productivity by the environmental load was made by synthesizing eco and efficiency from ecology and economy, proposed by World Business Council for Sustainable Development in 2000. Eco-efficiency by connection of resource efficiency with resource intensity is used as an indicator for evaluating green growth for minimizing the impact on the environment and achieving economic development as well by means of efficient use of resources. This research analyzes eco-efficiency with the case of organic agriculture promoted as a key green growth policy. Thirty questionnaires for farmers producing organic rice in Hongseong-gun, Choongcheongnam-do were used for the analysis. Eco-efficiency was measured by means of the amount of used nitrogen with respect to the amount of income, and was represented that organic agriculture was 32.0 higher than conventional agriculture. The analytical result of technical efficiency, using the (Data Envelopment Analysis (DEA) model showed that it is 0.765 which has a possibility of 21% in management improvement, and higher eco-efficiency was with higher technical efficiency. The analytical results showed that an organic agriculture contributes to green growth more than conventional agriculture. In addition, higher technical efficiency groups exhibited higher eco-efficiency indices.