사과의 생산 기술결합 관계 검정

최돈우,김현석,Choi, Don-Woo,Kim, Hyun Seok 경북대학교 농업과학기술연구소 2015 慶北大農學誌 Vol.33 No.1

This study identifies the complementarity or substitutability among apple production technology bundles. To identify the production technology bundle relationships, this paper focuses on the 8 most commonly used technology groups, including a high density plant, normal density plant, M9, M26, more than 70% adoption ratio of a medium-maturing variety, the adoption of a new variety, artificial pollination, and low-temperature storage. The results show that M9 has a complementary relationship with a high density plant, yet a substitute relationship with a normal density plant. Meanwhile, M26 has a complementary relationship with both a high and normal density plant. No substitute relationship is found between M9 and M26, yet a complementary relationship is identified between the adoption of artificial pollination and low-temperature storage and M9 or M26.

과채류 친환경 실천 농가의 생산성 변화 분석

최돈우,김태균,Choi, Don-Woo,Kim, Tae-Kyun 한국유기농업학회 2014 韓國有機農業學會誌 Vol.22 No.2

The productivity decrease in environment-friendly farming is the biggest obstacle for the development of environment-friendly food market. This paper aimed to analyze the productivity change in environment-friendly farming of fruit vegetables (oriental melon, watermelon, and strawberry). Box-Cox transformation model was used to infer the functional form of productivity change. The results showed that the periods of productivity restoration to 90% level in oriental melon, strawberry, and watermelon were 14.1 years, 11.4 years, and 6.0 years, respectively. The forms of productivity restoration of fruit vegetables showed differences due to their growth characteristics, incidences of crop pests, preference for the environment- friendly agricultural products, cultivation period and so on. Because the form and period of productivity restoration were different depending on kinds of fruit vegetable, the government policy should be established considering this point of view.

사과 품종별 재배면적 변동 요인 분석

최돈우,김동춘,임청룡,Choi, Don-Woo,Kim, Dong-Choon,Lim, Cheong-Ryong 한국농촌계획학회 2018 농촌계획 Vol.24 No.3

This study analyzed factors influencing cultivation area of two major apple cultivars, Fuji and Hongro, applying the panel SUR model to survey data from farms. Characteristics of farms, distribution factors, and weather factors were the independent variables of the model. The analysis indicated that characteristics of farms, distribution factors, and weather factors influence the cultivation area of Hongro and Fuji. The independent variables were also found to have different levels of influence on increase and decrease of the cultivated area. Helping predict changes in cultivation area of Hongro and Fuji, the research results can be used as primary data to support efforts to prevent price fluctuations due to changes in supply.

한·칠레 FTA이후 복숭아산업의 변화와 농가 대응전략 분석

최돈우 ( Choi Don-woo ),이항아 ( Lee Hang-ah ) 한국식품유통학회 2021 한국식품유통학회 학술대회 Vol.- No.동계

블렌딩 오일 시장 확대를 위한 소비자 선호 분석

최돈우 ( Don Woo Choi ),최홍집 ( Hong Jib Choi ),홍나경 ( Na Kyoung Hong ) 한국식품유통학회 2012 食品流通硏究 Vol.29 No.2

The number of obese people is on the rise in Korea because of westernized eating habits. Accordingly, consumers` concern about cooking oil also increases as trans fats are known to be the cause of obesity. The purpose of this paper is to investigate consumers` preference for the blending oil on the grounds that there`s ideal blending oil which mix omega 3·6·9 fatty acids in the ratio of 2:1:1. A choice experiment is designed and the aroma and prices of sesame oil, flaxseed oil and blending oil are examined as attributes. 154 Daegu metropolitan consumers were surveyed and a mixed logit model was employed to estimate WTPs. The result shows the highest WTP on the blending oil, the second highest on the flaxseed oil, the third on the sesame oil and the last on the aroma. Consumers have positive attitudes on health functional food or functionality-enhanced blending oil. The result of this paper could contribute to the development of functionality-enhanced blending oil production through transferring agricultural technology and improvement of rural household incomes.

약용작물 재배농가의 생산효율성 통계적 차이에 대한 연구

최돈우 ( Choi Don Woo ),김동춘 ( Kim Dong Choon ),이항아 ( Lee Hang Ah ),임청룡 ( Lim Cheong Ryong ) 한국품질경영학회 2020 품질경영학회지 Vol.48 No.3

Purpose::This study aims to analyze the management performance and production efficiency of medicinal crop farmers. Methods: We conducted an empirical survey of medicinal crop farmers and analyzed production efficiency using DEA method. Results: First, The crops that increased the number of farms during 2010 and 2018 were Angelica tenuissima and Salvia miltiorrhiza, which was attributed to higher income per hour than other crops. Second, As for the efficiency of Liriope platyphylla, the average was 0.376, and the coefficient of variation was the lowest, 0.566. Third, Salvia miltiorrhiza and Atractylodes japonica had the highest technical efficiency after Liriope platyphylla, but the variation coefficient was high and the efficiency was relatively high. Fourth, As a result of performing variance analysis to find out the difference of each crops on the value of medicinal crop efficiency, the technical efficiency, pure technical efficiency, and scale efficiency were all statistically significant. Conclusion: Based on the results above, following policy suggestions are offered. First, It is necessary to provide information on crops with high income compared to the input of labor, and to develop labor-saving cultivation technologies for each crop. Second, A stable labor supply system will be needed in rural areas. Third, Efforts should be made to close the technological gap between farmers through a lot of education and consulting for farmers who grow medicinal crops.

스마트팜 도입 딸기농가의 생산효율성 통계분석

최돈우 ( Don-woo Choi ),임청룡 ( Cheong-ryong Lim ) 한국품질경영학회 2018 품질경영학회지 Vol.46 No.3

Purpose: This study aims to analyze the management performance and production efficiency of strawberry farmers who introduced smart farming, one of the primary symbols of the fourth industrial revolution in the agricultural sector. Methods: We conducted an empirical survey of strawberry farms using smart farming and analyzed production efficiency using DEA method. Results: First, difficulties for strawberry farmers introducing smart farming included time and money spent on parts replacement and additional costs due to compatibility problems with existing facilities after the adoption. Second, strawberry farmers using smart farming increased their total income by producing higher yield and improving quality thanks to the competent growth management. Third, the analysis of production efficiencies before and after smart farming found improvement in technical efficiency, pure technical efficiency, and scale efficiency. But, the gaps in technical and scale efficiencies among the farms widened. Conclusion: Based on the results above, following policy suggestions are offered. First, an environment control technology suitable for strawberry farming needs to be developed. Second, the smart farming technology needs to be standardized by the government. Third, new smart farm models need to be developed to accommodate to the facilities and environment in Korea through collecting big data including high-quality data on the environment, growth, and yield. Fourth, continuing education needs to be provided to narrow the gap in smart farming technology among strawberry farmers.

참외 과중에 영향을 미치는 환경요인 분석

최돈우 ( Choi Don-woo ),도한우 ( Do Han-woo ),최홍집 ( Choi Hong-gip ),류영현 ( Ryu Young-hyun ),임청룡 ( Lim Cheong-ryong ) 한국농촌계획학회 2021 농촌계획 Vol.27 No.2

In this study, an analysis was performed using the growth data and environment data of Korean melon farmers to confirm the influence of environmental factors variables on fruit weight of Korean melon. The analysis results can be summarized as follows. First, it was confirmed that humidity and temperature were recognized as the most important factors among the core factors of korean melon farm production management. Second, The correlation analysis of fruit weight and environmental factors showed a statistically significant soil temperature, internal humidity. Third, The Pooled OLS model estimation results showed that the estimation coefficient for soil temperature is (-), and the estimation coefficient for soil temperature square is (+), indicating that optimal control temperature exists.

사과 생산자 패널의 행복과 만족도 분석

최돈우(Don Woo Choi),김동춘(Dong Choon Kim) 한국원예학회 2017 한국원예학회 학술발표요지 Vol.2017 No.5

복숭아 소비자 만족도에 미치는 품질 속성에 대한 연구

최돈우(Don-Woo Choi),이항아(Hang-Ah Lee),임청룡(Cheong-Ryong Lim) 한국산학기술학회 2021 한국산학기술학회논문지 Vol.22 No.11

이 연구는 복숭아 품질속성에 대한 소비자 만족도를 실증적으로 분석하기 위해 소비자에게 복숭아 외형을 보여주고 시식시킨 후, 설문조사를 진행하였고, 실험실에서 소비자가 시식한 복숭아의 무게, 과장, 과폭, 당도 등에 대해 품질 측정을 하였다. 분석결과를 요약하면 다음과 같다. 첫째, 복숭아의 전반적 만족도는 무게, 모양, 당도와 상관관계가 존재하였다. 둘째, 무게에 따라 크기 만족도에 차이가 있었으며, 당도에 따라 단맛 만족도에 차이가 존재함을 알 수 있었다. 셋째, 품질속성별 만족도를 독립변수로 활용한 분석결과 전반적 만족도에 당도 만족도, 모양 만족도, 크기 만족도 순으로 영향을 미치는 것으로 나타났다. 넷째, 품질속성 측정값은 독립변수로 활용한 경우 전반적 만족도에 당도가 가장 큰 영향력을 미치는 것을 알 수 있었다. 이러한 분석 결과로부터 복숭아 산업 발전을 위해 다음과 같은 시사점을 제시하고자 한다. 첫째, 복숭아 농가들은 지속적이 농가소득 증대를 위해서는 당도가 높은 복숭아를 생산하기 위한 다양한 노력이 필요하다. 둘째, 복숭아 품종 육성할 때 소비자가 선호하는 당도, 크기, 모양을 고려하여 복숭아의 지속적인 소비 증대로 복숭아 농가의 소득 안정화에 큰 도움을 줄 것으로 기대한다. In this study, satisfaction with each attribute was collected through a survey of peach consumer tasting, and actual data for each quality attribute was collected through direct measurement. The results were summarized as follows: overall satisfaction with peaches was correlated with weight, shape and sugar content. There was a difference in size satisfaction according to weight, and there was a difference in sweetness satisfaction according to sugar content. As a result of the analysis using satisfaction by quality attribute as an independent variable, sugar content satisfaction, shape satisfaction and size satisfaction had an effect on overall satisfaction. When the quality attribute measurement value was used as an independent variable, sugar content had the highest influence on overall satisfaction. Based on our results, various efforts are needed to produce high-sugar peaches by considering the sugar content, size and shape preferred by consumers when growing peach varieties.