• Journal of the Korea Society for Simulation
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• v.23 no.4
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• pp.121-129
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• 2014

The importance of evaluation of farming performance has been increasing with the progress of farm size and capitalization, and with the introduction of the concept of the 6th industry to agriculture. In this research, ROIC(Return on Invested Capital) tree technique was examined as a new method for analyzing operations performance of supply chain for farm produce. Current practices of production and distribution of blueberry, model crop, were investigated and ROIC tree for blueberry has been set up from the survey of the supply chain. Then, it was simulated with real values collected from the participants in the supply chain and the previous studies using a spreadsheet program. The resulting ROIC value was compared with those of other industries and the conventional performance analysis method. Features of the evaluation technique were identified and it was proposed how to apply it to agricultural field in the future.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.1
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• pp.249-255
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• 2014

This paper deals with measurement on the economic impact of tax-free oil for Agriculture in Korea. According to increasing of world oil price, the supply policy of agricultural tax-free oil, which specified to support farmers since 1986, are required to expand by farmers. But the supply quantity of tax-free oil is deceased continuously and Korean Ministry of Trade, Industry, and Energy(MOTIE) present stance of sundown policy of tax-free oil for agriculture. In this context, It is necessary and important to measure the economic impact of the supply policy of tax-free oil for agriculture. This study address a econometric method for measurement the economic impact of the supply policy of tax-free oil and suggest several policy implements. Our results show that when the supply policy of tax-free oil for agriculture is annihilated in phases over the five years. the agricultural GDP is decreased by about 3,195 billion korean won and the agricultural price level is increased by 26.6 points after 5 years.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.05a
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• pp.595-597
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• 2018

Precipitation has a wide range of applications, such as the management and operation of dams and rivers, supply of dranking water for urban and industrial complex, farming and fishing, forest greening, and safety management. In order to prepare for disasters and to obtain economical effects in case of flood damage, it is necessary to measure accurate precipitation. In this study, we carried out the characteristics tests for various types of rainfall gauge using integrated verification system, which can analyze the performance of collective type rainfall gauge. The uncertainty for tipping bucket rain gauge was 0.2887 mm. Therefore, it can be seen that the uncertainty is calculated differently depending on the characteristics of the rainfall gauges. The uncertainty is also influenced greatly by the resolution.

• Journal of the Korean Geographical Society
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• v.33 no.1
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• pp.93-107
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• 1998

The purpose of this paper is to examine the change in the regional characteristics of Y${\={o}}$ju as its economic base has been shifted. From Chosun Dynasty to the mid 1960s, Y${\={o}}$ju had been known as a core of rice production, utilizing favorable natural conditions and well developed river transportation system, with commercial and administrative functions. From the mid 1960s to the mid 1980s, Y${\={o}}$ju had been excluded from the process of the national industrilization, which made Y${\={o}}$ju remain lagged. The transportation system was blocked and the industrial investment in this area was prevented by a variety of restrictive laws. Since the mid 1980s, Y${\={o}}$ju entered into a prosperous are as the land transportation system began to be dramatically improved and some of the restrictions were alleviated. Tecently, diversification and commercialization in the agricultural sector have progressed in land use. In the manufacturing sector, Y${\={o}}$ju becomes a core of the pottery industry in tems of the total amount of its production.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 1996.05a
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• pp.15-33
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• 1996

우리나라의 토양은 지형적인 요인과 토양모재 및 기후적인 조건에 의해 토양에 유입되는 유해물질에 대한 보유력이 낮은 특성으로 인해 외부에서 유입되는 유해 중금속에 대하여 취약한 특성을 가지고 있다. 우리나라 토양의 중금속 자연 함유량은 논토양의 경우 Cd 0.13, Cu 4.15, Pb 4.17, Zn 3.95 mg/kg의 수준이며 밭토양은 Cd 함량이 논토양보다 높은 수치를 보인다. 과수토양은 과거에 중금속이 함유된 영농자재가 투입된 결과로 자연함량을 결정하기 힘드며 매우 높은 중금속 농도를 보인다. 그리고 현재 토양환경보전법이 시행되어 중금속류 및 유해유기물에 대한 오염기준을 제시하고 있다. 토양의 중금속 오염현황은 환경부의 토양오염 측정망에서 금속광산, 제련소, 매립지 부근에서 높은 농도를 나타내고 있으며, 산업폐수 및 생활하수가 관개수로 유입되는 논토양에서 중금속 오염이 우려되고 있다. 제련소 및 금속광산 부근의 토양은 거리에 따라 중금속 농도가 감소하는 경향을 보이고 있으나 인접지역에서는 규제농도에 육박하거나 초과하고 있다. 또한 폐광산 부근에서 생산된 현미 역시 전반적으로 작물재배제한 기준를 초과하지는 않으나 상당 지역이 이 기준을 초과하고 있으며 0.1 M HCl로 침출가능한 Cd 함량과 상관관계를 보인다. 이 상관관계에 의하면 0.1 M HCl로 침출가능한 토양 중 Cd의 양이 5 mg/kg 이면 생산된 현미의 Cd 함량이 1 mg/kg을 초과할 확률은 40%인 반면, 일본 식량청 수거대상인 0.4 mg/kg을 초과할 가능성은 100%로 파악된다. 광명시 가학광산 인근 지역을 대상으로 한 중금속 오염에 대한 대책연구에서는 현미 중 Cd 함량이 0.4 mg/kg을 초과할 가능성이 높은 지역(토양 농도 5 mg/kg)은 최소 20 cm 이상 두께로 객토를 하고, 현미 중 Cd 함량이 0.4 mg/kg 을 초과할 가능성이 낮은 지역은 석회, 규산질 비료, 용성인비, 등을 사용하여 중금속의 용해도를 낮추어 작물이행을 경시키는 것이 바람직한 것으로 판단되었다. 그리고 광미사를 현위치에서 처리하는 방안이 제시되었다.

• Research in Plant Disease
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• v.30 no.1
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• pp.66-77
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• 2024

Black wood ear mushroom (Auricularia auricula-judae) is one of the most economically important mushrooms in China, Japan, and Korea. The cultivation of wood ear mushrooms on artificial substrates is more efficient in terms of time and cost compared with their natural growth on trees. However, if the substrate cultivation is infected by fast-growing fungi, the relatively slow-growing ear mushroom will be outcompeted, leading to economic losses. In this study, we investigated the competitive fungal isolates from substrates infected with fast-growing fungi for the cultivation of ear mushrooms in Jangheung and Sunchon, Korea. We collected 54 isolates and identified them by sequencing their internal transcribed spacer region with morphological identification. Among the isolates, the dominant isolates were Trichoderma spp. (92.6%), Penicillium spp. (5.6%), and Talaromyces sp. (1.8%). To find an appropriate eco-friendly biocontrol agent, we used five Streptomyces spp. and Benomyl, as controls against Trichoderma spp. and Penicillium spp. Among the six Streptomyces spp., Streptomyces sp. JC203-3 effectively controlled the fungi Trichoderma spp. and Penicillium spp., which pose a significant problem for the substrates of black wood ear mushrooms. This result indicated that this Streptomyces sp. JC203-3 can be used as biocontrol agents to protect against Trichoderma and Penicillium spp.

• Korean Journal of Environmental Agriculture
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• v.34 no.4
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• pp.274-281
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• 2015

BACKGROUND: A lasting release of low levels of persistence chemicals including pesticides and pharmaceuticals into river has a bad influence on aquatic ecosystems and humans. The present study monitored pesticide residues in the Yeongsan and Seomjin river basins and their tributaries as a fundamental study for water quality standard of pesticides.METHODS AND RESULTS: Nine pesticides(aldicarb, carbaryl, carbofuran, chlorpyrifos, 2,4-D, MCPA, methomyl, metolachlor, and molinate) were determined from water samples using SPE-Oasis HLB(pH 2) and LC/MS/MS. Validation of the method was conducted through matrix-matched internal calibration curve, method detection limit(MDL), limit of quantification(LOQ), accuracy, precision, and recovery. MDLs of all pesticides satisfied the GV/10 values. Linearity(r²) was 0.9965- 0.9999, and a percentage of accuracy, precision, and recovery was 89.4-113.6%, 3.1-14.0%, and 90.8-106.2%, respectively. All pesticides exclusive of aldicarb were determined in the river samples, and there was a connection between the positive monitoring results and agricultural use of the pesticides.CONCLUSION: Monitoring outcomes of the present study implied that pesticides were a possible non-point pollutant source in the Yeongsan and Seomjin river basins and tributaries. Therefore, it is required to produce and accumulate more monitoring results on pesticides in river waters to set water quality standards, finally to preserve aquatic ecosystems.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.18 no.1
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• pp.85-106
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• 2023

This study reviewed and derived the success factors of overseas agricultural startups and studied their integrated research model. Agricultural startups and general startups have in common that poor resources and infrastructure exist from a resource-based perspective after startup, but a differentiated approach from general startups is required due to the nature of the primary industry of agriculture. In this study, we approach the company internal factors (human resources/vision/distribution network capacity/capital capacity/cultivated crops/physical resources/farming technology, etc.) and external factors (agricultural infrastructure/laws/regulations/relationship with surrounding society, etc.) We tried to build a research model that can be integrated by focusing on various existing research models, success factors, and entrepreneurship. Through this, it is intended to present an integrated model that is practically helpful to business performance to entrepreneurs, business-related persons, and researchers who need an integrated understanding of agricultural startups at home and abroad. made for purpose In this paper, a standard model was established through three types (existing agricultural startup, small and medium-sized business startup, multinational company, and comprehensive approach) according to size and characteristics for modeling agricultural startup success factors. Through this, a total of 9 success factors (agricultural management, external environment, manager/founder characteristics, corporate identity, business management, organizational culture, infrastructure, commercialization capability, and sustainable growth) were derived. The implication of this study is that the success factors of agricultural startups were comprehensively presented based on 'entrepreneurship' for various domestic and foreign agricultural startup cases. By confirming the systematic categorization, a standard model for future agricultural startup success factors was presented, and as a result, a foundation was presented for systematic research and practical effectiveness of related research in the future.

• Journal of the Economic Geographical Society of Korea
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• v.8 no.1
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• pp.171-188
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• 2005

Da-san Jeong Yak-yong(정약용) was one of the notable realist in the late 18th century, the second half of Chosun Dynasty. He accentuate the need of national riches and stabilization of the public welfare through his reformat proposal on actual condition. He regarded geography as the necessary knowledge to achieve the national riches and stabilization of the people's livelihood. We can read the contents on agricultural policy and encouragement of farming in Mokminsimseo(목민심서). In Mokminsimseo(목민심서), as coverage on economic geography, he present various policy of encouragement of agriculture as device of agricultural promotion and urges governors initiative on this. On policy of encouragement of agriculture, he insisted that the farmers have side job like horticulture, sericulture and live-stock farming far their rural economy. In sum, Da-san Jeong Yak-yong regarded economic geography as a important subject under realism which aims at improving and reforming contemporary world against 주자학 oriented Confucian classics.

• Journal of Ginseng Culture
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• v.2
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• pp.27-38
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• 2020

Gaesung was the Mecca of Korean ginseng. Factors that Gaesung has been a leading brand of Korean ginseng were multiplicative. Those were natural conditions and huge commercial capital, red ginseng factory, creative business systems and etc. We can quote BongSang Son, SungHak Kong and JeongHo Kim as a famous Gaesung' ginseng merchants. They, as leaders modern ginseng industry had supplied the method of cultivation, prevention of phyto-diseases, excellent ginseng seed, and prepayment system of farming capital. The Gaesung merchants also adopted modern marketing techniques : commercial advertisement, made-order sales, changing package of the ginseng products. The book 'The Dictionary of Korean Companies and Stores' which was published in 1927 introduces BongSang Son as a great businessman in Gaesung. He was not only merchants but also educator and social worker. He practiced the spirit of entrepreneurship. BongSang Son's role of pioneer contributed to the development of Korean ginseng and Gaesung. Due to such efforts of Gaesung merchants, Korean ginseng industry were took a great step forward. This article considered the development of Korean ginseng industry through the life and achievement of the ginseng magnate BongSang Son who was a representative one of Gaesung merchants.