• 농약과학회지
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• 제19권4호
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• pp.354-360
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• 2015

본 연구는 소면적 재배작물인 산마늘을 대상으로 tebuconazole 및 fludioxonil의 잔류특성을 조사하여 잔류허용기준(MRL) 및 안전사용기준 설정을 위한 자료로 활용하고자 수행하였다. Tebuconazole 20% 액상수화제 및 fludioxonil 20% 액상수화제 농약을 기준량과 배량의 농도로 토양관주처리한 후, 15, 30, 45일차에 시료를 채취하여 분석하였다. 두 약제 모두 dichloromethane을 이용하여 분배하였으며, SPE-Silica cartridge와 SPE-$NH_2$ cartridge를 사용하여 정제한 후, GC/NPD를 이용하여 분석하였다. Tebuconazole과 fludioxonil의 회수율은 각각 108.8~119.5%, 91.3~104.8%였으며, 이 때의 분석검출한계는 모두 $0.01mg\;kg^{-1}$이었다. 산마늘 중 tebuconazole의 잔류량은 <$0.01{\sim}0.12mg\;kg^{-1}$이었으며, fludioxonil의 경우 $0.01{\sim}0.09mg\;kg^{-1}$이었다. 두 약제의 잔류량으로부터 산출한 ADI 대비 식이섭취율(% ADI)은 각각 17.44%, 25.75%로 산마늘 중 tebuconazole 및 fludioxonil에 대한 ADI 대비 식이섭취율(% ADI)은 80%를 초과하지 않으며, 식이를 통한 두 약제의 노출 위험도는 안전한 수준인 것으로 판단된다. 이에 따라 tebuconazole 20% 액상수화제 및 fludioxonil 20% 액상수화제는 산마늘의 병해를 방제하는데 활용할 수 있으며, 잔류농약 문제를 효율적으로 관리할 수 있을 것이라 판단된다.

• 한국환경농학회지
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• 제42권4호
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• pp.371-381
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• 2023

The effectiveness of plant-based attractants was studied using large traps, which attracted relatively more snails in agricultural water drainage ditches and rice-cultivating environments, although their effectiveness in rice fields and lakes was limited. The rate began to rise after three hours of observation. Watermelon peel exhibited the highest apple snail attraction rate (13.8%), followed by potatoes (10.0%), and apple peel (8.8%). These values significantly differed from the attraction rate attributed to papaya leaves (F=3.84; P=0.0387). After 24 h, watermelon peel and apple peel indicated a higher rate of attraction (23.4% and 21.7%, respectively), which were significantly different compared with those of papaya leaves and potatoes (F=9.94; P=0.00455). Large bait traps outperformed funnel traps in capturing golden apple snails and trapped a significant number of snails measuring over 1 cm in size. Watermelon peel was the most effective attractant for a large bait trap, followed by apple peel, potatoes, and papaya leaves. On average, 110 snails were captured in the lure net. However, potatoes, apple peels, and papaya leaves caught an average of 93, 80, and 79 snails, respectively. Among the attractants, the lure effect of the snails was not significantly different. The efficiency of large bait traps in capturing snails, regardless of the plant attractant employed, followed the order: apple peel > watermelon peel and potatoes > papaya leaves > melon > Korean melon. Watermelon peel is highly recommended for farmer use, as well as apple peel and potatoes. Utilizing these snail attractants may contribute positively to developing a safe and environment-friendly integrated pest management strategy.

• 농업과학연구
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• 제38권2호
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• pp.315-324
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• 2011

Riparian vegetation distribution patterns and diversity relative to various fluvial geomorphic channel patterns, stream bank stabilization methods, and stream flow processes are described and interpreted for selected nature-friendly small stream bank protection of Goesan, central Korea. Idong Stream Pilot Project, which began in May 2003 and finished in December 2003, was selected to develop effective methods which was nature-friendly stream bank protection. The project aim to maintain or increase stream bank stabilization ecosystem goods and services while protecting downstream and stream bank ecosystem. A number of protecting methods which were a Flight of fieldstone, Vegetation block, Green river block, Stone net, Green environment block, Eco friendly cobble, Vegetation mat and Geo-green cell and Firefly block were applied on the bank of Idong stream. The stream sites have been monitored about vegetation conditions each method in 2007. We selected six points to separately investigate in left and right bank. The main purpose of this study was to find out suitable methods and to improve stream restoration techniques for ecosystem. On the stream bank, H environment block method (9.7) was the highest average of vegetation coverage and Firefly block method (3.87) was the lowest average in applied methods.

• 농촌지도와개발
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• 제9권1호
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• pp.101-119
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• 2002

The purpose of this study were to describe the problems of rural women in changing rural society and environment in Korea, to search for the development directions, and propose strategies for improving rural women's welfare. Related literatures and existing data were reviewed to investigate the present conditions, social-economic status, and economic activities of rural women in Jinju city, Gyeongsangnam-Do province. Jinju city had relatively higher percentage of farming people and rural women than other cities's of Gyeongsangnam-Do, and agriculture occupied important portion in industrial sector in the area. According to the Jinju 21C Vision Project, the city was planning to build eco-friendly environment and welfare rural society. To achieve the goals and objectives of the project, the following points should be considered: 1) Success of the project may depend on how to motivate and support rural women to participate actively in the project. 2) Jinju city should set up some practical strategies for improving the status of rural women who take key roles in environment and agriculture. 3) The city should establish strong support system and practical programs for rural women in building eco-friendly Jinju city.

• 펄프종이기술
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• 제46권4호
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• pp.93-100
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• 2014

The packaging with environment-friendly materials become more important issue since the concern for the environment and the disposal of waste such as the packaging materials has increased. Although the paper based packaging such as corrugated box are widely used as a typical environment-friendly packaging stuff, the heat insulation properties of paper packaging did not get many attention. In this study, the heat insulation properties of paper were deeply evaluated to improve the functional properties as packaging material of the cold storage goods. The simple device for evaluating the heat insulation of paper product was developed. Subsequently, the changes in the heat insulation depending on the paper structure and the addition of the inorganic fillers were investigated by using the instrument. The higher basis weight and the less beating time resulted in the bulkier structure and the less efficiency of heat transfer. The addition of the perlite powder as a filler resulted in the great increase in the heat insulation, although the addition of the calcium carbonate decreased the heat insulation potential of paper.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.318-318
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• 2017

This study was conducted to find optimum mixed sowing ratio of green manure crops to reduce the use of chemical fertilizer as well as to increase the crop yield potential which will foster the utilization of green manure crops in the upland field in view of environment friendly agriculture. According to the study, the mixed ratio, 50:50, of hairy vetch and green barley showed highest nitrogen production yield in the soil due to the relatively higher organic nitrogen supply from the hairy vetch plant as well as nitrogen fixation from the air rather than other mixed ratio. In the 50:50 mixed ratio of hairy vetch and green barely total nitrogen amount in the soil showed 17.2kg per 10a, but in the other treatment ratio such as 75:25, 25:75. total nitrogen fixation amount were 16.7, 16.9 respectively. We also conducted the experiment to compare the effect of the mixed sowing treatment of green manure crops on the production of corn cultivated as a succeeding plant of hairy vetch. According to the result, the mixed ratio, 50:50, of hairy vetch and green barley treatment showed highest yield potential of corn as 153kg per 10a in seed weight which is due to the relatively higher organic nitrogen supply from the hairy vetch plant as well as nitrogen fixation from the air rather than other mixed ratio. In the mixed sowing treatment of hairy vetch 100 and barley 0 ratio, the corn production showed 148kg per 10a which is 5kg lower than that of hairy vetch 50 and barley 50 ratio, but showed statistically no difference between those two treatment. Otherwise, different treatments, such as hairy vetch 75 and barley 25, 25 and 75, 0 and 100 showed statistically different each other. Therefore, it was concluded that green manure crops, such as hairy vetch, green barley and rye were very effective crops to increase the soil fertility and gave the positive effect to the crops to give vegetative and propagative growth condition and, in turn, increased the yield potential. We have to make policy to enhance the utility of green manure crops in the upland crops as well as faddy field for the soil fertility and crop yield production which will guarantee prominent quality of environment friendly agriculture products.

• 환경정책연구
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• 제6권1호
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• pp.61-81
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• 2007

농산물에 대한 시장수요는 가격탄력성이 작기 때문에 기술진보나 여타 생산성 향상요인에 의해 공급이 확대되면 시장가격이 크게 하락하고 농가의 이윤은 감소한다. 일반적인 경쟁시장 작동원리에 따르면 농업 부문에 투입된 부존자원은 다른 산업으로 조정될 것이다. 하지만 농업부문의 경우 다른 산업으로의 신축적인 자원조정(resource adjustment)이 이루어지지 않기 때문에 농산물의 과다 생산과 낮은 소득수준이 지속된다. 정부가 농업부문 보호를 위해 다양한 정책수단을 도입하는 근본적인 이유는 농업부문이 다른 산업에 비해 취약한 수익구조를 가지고 있어 경쟁시장에서는 식량안보라는 편익을 사회적으로 적절한 수준에서 제공하지 못하기 때문이다. 농업부문 보호를 위해 정부가 취하는 대표적인 정책은 가격지지정책과 소득보조정책이다. 직접지불제는 정부가 농가의 소득을 직접적으로 지지하는 보조금의 한 형태로 농산물의 가격과 교역조건에 직접적인 영향을 미치지 않아 WTO농업협정의 감축대상 보조금에서 제외되어 최근 새로운 농업보호 수단으로 운용되고 있다. 친환경직불제는 환경보전형 농업에 대한 직접지불제로 농약이나 화학비료를 사용하지 않고 생산하는 농가에 대해 일정 보조금을 지급하는 제도이다. 국내에서 1999년부터 시행되고 있는 친환경직불제는 유기농산물의 공급을 확대시키고 농업시장 개방에 대응한 농업부문의 경쟁력 제고방안을 제시하였다는 점에서 긍정적으로 평가되고 있다. 하지만 실제 공급되는 친환경농산물이 저농약이나 무농약농산물이라는 점과 유기질비료 사용을 적절하게 조절하지 못하고 있다는 점에서 '환경보전형 농업'인지에 대해서는 장담할 수 없는 실정이다. 현행 친환경직불제하에서 농약과 화학비료의 투입량이 감소하는 것은 명확하다. 하지만 유기질비료의 투입이 증가한다는 것도 명확하다. 따라서 농약과 화학비료의 감소에 따른 환경질 개선정도가 유기질비료 투입 증가에 의해 상쇄된다면 친환경직불제의 '친환경성'은 보장되지 않는다. 만약 비료에 대한 수요가 큰 농가를 중심으로 친환경농업이 이루어진다면 친환경직불제의 환경오염 저감잠재력은 더욱 취약해질 것이다. 본 논문은 친환경농업으로의 전환에 대한 유인을 정의하고 낮은 토양질의 농가들이 전환에 더 큰 유인을 갖게 됨을 보이고 있다.

• 한국유기농업학회지
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• 제20권4호
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• pp.607-618
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• 2012

Dasineura oxycoccana는 미국, 캐나다, 유럽 등에 분포하는 해충으로, 블루베리에 발생할 경우 신초와 꽃눈을 가해하여 막대한 피해를 유발하는 주요 문제 해충이다. 국내에서는 2010년 경기도 화성시 블루베리 재배지에서 유사증상이 발견되어 피해조사 및 정밀동정을 실시한 결과 D. oxycoccana에 의한 피해로 확인되어 블루베리혹파리로 명명하였고 검역관리해충으로 지정되었다. 2011년 전국적인 조사 결과 대부분 블루베리 재배지역에서 블루베리혹파리 발생 및 피해가 확인되었다. 시설 비가림 재배 농가에서 건조한 펄라이트나 친환경 부산물인 왕겨 등을 이용하여 블루베리혹파리 유충 및 번데기 증식에 불리한 물리적 환경조건을 조성함으로써 블루베리혹파리 발생 및 그에 의한 신초 피해를 감소시킬 수 있어서 블루베리혹파리의 친환경 방제 수단으로 활용 가치가 높았다.

• 농촌계획
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• 제29권3호
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• pp.79-89
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• 2023

As the demand for environmental-friendly agricultural products continues to rise due to increased concerns regarding food safety and ecosystem conservation, it is becoming important to identify regions and spatial locations where environmental-friendly should be intensively established for production integration. This study aims to analyze the spatial distribution of environmental-friendly certified farms in Jeollanam-do, South Korea. Spatial statistical analysis based on Local Moran's I and Getis-Ord Gi^* were used to identify spatial cluster characteristics and landscape indices were utilized to analyze spatial patterns of environmental-friendly certified farms. The results indicated that Haenam-gun, Gangjin-gun, Muan-gun, and Jindo-gun were identified as hotspots, while Muan-gun, Goheung-gun, and Jindo-gun exhibited high connectivity. This suggests that environmental-friendly certified farms in Muan-gun and Jindo-gun were clustered and closely connected to one another. Based on the results of the spatial distribution of environmental-friendly certified farms, areas belonging to the hotspot and with high connectivity should be managed as clustered districts to secure the foundation and system of environmental-friendly certified farms. Areas that belong to cold spots and have low connectivity should be preceded by measures to promote conversion to environmental-friendly agriculture. In addition, it is necessary to make it possible to create a large-scale cluster district through a long-term spatial planning strategy to expand the environmental-friendly certified farms. The findings of this study can provide quantitative data on policies and discussions for developing a model for rural spatial planning.

• International Journal of Advanced Culture Technology
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• 제12권1호
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• pp.281-286
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• 2024

With the commercialization and full-timeization of the livestock industry, civil complaints continue to increase, and the livestock industry is facing a crisis due to social problems such as odor caused by livestock manure, soil pollution, water pollution, and environmental pollution. In order to increase productivity in livestock farms, the amount of livestock manure generated is increasing due to excessive use of protein feed and high-density breeding environment, and complaints such as odor and water pollution due to management problems are increasing rapidly. Livestock odor has emerged as a serious social problem, and due to growing complaints, conflicts between the Ministry of Agriculture and Forestry and the Ministry of Environment are even causing the livestock industry to lower its status. There is an urgent need for solutions to identify problems in the livestock industry and improve policies. This study aims to develop a " Abelmoschus Manihot Jinhuakui " brand that can improve the intestinal environment of livestock, reduce odors caused by livestock excrement, and improve the productivity of livestock farms in order to improve the increasingly serious odor problem in livestock sites. For Jeju livestock farms, which place more importance on the environment by securing tourists, eco-friendly feed additives were applied to the experiment, the results were derived, and the focus was on solving fundamental problems of odor generation through the development and packaging of feed additive brands. We aim to fundamentally solve the odor problem of domestic livestock farms, secure eco-friendly livestock farms, and contribute to reducing livestock odors and increasing productivity through research results that reduce ammonia levels in each livestock farm.