• Journal of Food Hygiene and Safety
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• v.20 no.3
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• pp.165-174
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• 2005

This survey was conducted to monitor the current status of pesticide residues in agricultural products collected in wholesale markets and big retailers in Gwangju, in 2004. A total of 751 samples was analyzed by multiresidue method. Vegetables and fruits accounted for the largest proportion of the commodities analyzed and those two commodity groups comprised 604 $(80\%)\;and\;83\;(11\%)$ of the total number of 751 samples. Of these 751 samples, 112 samples $(14.9\%)$ had pesticide residues and 29 samples $(3.9\%)$ had violative residues. The detection rate was the highest $25\%$ in January and the lowest $9.5\%$ in June. The violation rate was the highest $7.0\%$ in March and the lowest $0\%$ in April. The violation rate in wholesale products was higher than that in big retailer products, $5.8\%$ verses $3.5\%$. And of 112 samples with pesticide residues, the agricultural product in which the pesticide residues were the most flequently detected was perilla leaf $(17.9\%)$ followed by korean lettuce $(16.1\%)$, spinach $(8.0\%)$ and korean cabbage $(5.4\%)$ and among 112 samples, 22 samples $(20\%)$ had more than one pesticide. Procymidone $(20.3\%)$, endosulfan $(18.2\%)$, dimethomorph $(13.3\%)$, chlorpyrifos $(7.7\%)$ and azoxystrobin $(6.3\%)$ were the most frequently found in agricultural product analyzed.

• Proceedings of the Korean Society of Organic Agriculture Conference
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• 2009.12a
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• pp.313-313
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• 2009

지속 가능한 농업과 안전한 농산물의 생산을 유지시키면서 환경부담 물질 투입량을 절감시킬 수 있는 농법을 개발하기 위해서 유기농자재 사용실태 및 효과를 조사했다. 전북 익산시 웅포면 유기농업 시범마을 현지 농가에서 사용 중인 유기 농자재의 실태를 조사하고 또한 유기농자재의 성분을 분석하였다. 유기농 자재 시용효과를 검증하기 위해서 시범마을 현지 농가포장에서 삼광벼 품종으로 포트 육묘 후 기계이앙을 실시하고 유기농자재를 시용하여 조사하였다. 유기농업 종합기술 시범마을에서 활용중인 유기농자재는 27.5%가 유기농 목록에 공시된 자재를 사용하고 있었다. 시범마을에서 활용중인 유기농자재의 성분 중 수분은 평균 50.1%, 유기물함량은 36.0%, 총 질소함량은 1.71% 이며 염분은 0.56% 이였다. 경종방법과 유기농자재를 이용하여 새로운 유기농 벼 재배 기술을 개발할 목적으로 시험포를 조성한 지역에서 토양의 화학성분을 조사한 결과 pH, 마그네슘, 규산은 망성 단지에서 낮은 경향을 보였고, 유기물, 인산, 규산, 칼륨은 삼기단지에서 높았다. 포트육묘 후 이앙을 실시한 결과 단위면적당 이앙주수별 생육에서 재식밀도가 높을 수록 초장과 경수가 적었다. 산파육묘와 포트육묘 이앙 모두 도복 발생은 없었으며, 포트 육묘 3절의 두께가 양호하였다. 쌀겨 시용에서 잡초발 생량이 적었으며, 포트육묘 이앙에서 병해충이 적었다. 수량은 산파육묘에 비해 포트육묘 방식에서 5~10% 높았는데, 포트 육묘에서 주당 수수, 수당 립수가 많았고, 천립중이 무거웠다.

• Korean Journal of Organic Agriculture
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• v.11 no.2
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• pp.23-42
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• 2003

The study must have standpoints for the stable market construction of the Environmental-Friendly agricultural products of the quality-certificated which has rapidly grown due to a discussion of the environment and agriculture, income increase and the interests on foods stability. The survey was conducted through face-to-face interview of 200 adults who are in their twenties or more in Cheonan-city. In this research, the Environmental-Friendly agriculture was a clean agriculture not using a fertilizer or chemicals and the agriculture which protects the environment by preventing the environmental pollution. In the analyses of the consumer's willingness to pay, the rice showed 69,851 won, and a lettuce and bean-curd showed 947 won and 1.412 won respectively. In terms of current issues of the policy, to establish the stable circulation structure and consumption strategy, there must be a clearness raise of the Quality Authentication (QA) Mark. To raise the trust through quality authentication, there must be transparency raise of information by distribution stages and the thorough post management of the official institutes. Also, to persue the competitive product differentiation, there must be the settlement of the product brand on the market, development of the new production technology and a classification of consumers by incomes. Finally to construct stable distribution and price system, there must be active participation of the local agricultural cooperatives in the distribution of the Environmental-Friendly agricultural products of the quality-certificated and the understanding of the proper price of the consumer market and flexible strategy of the price change.

• Journal of Food Hygiene and Safety
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• v.24 no.1
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• pp.27-37
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• 2009

In an effort to evaluate the currents in pesticide residues, 3,020 agricultural products were tested by multiresidue method with 260 pesticides, obtained from the circulation market of in the Gangbuk province in 2007.20.4%(616/3020) of the products were determined to contain pesticides residues, but only 4.1%(124/3020) of these were deemed to be unsuitable by the korea Food Code. Unsuitably products were spinach(21.0%), perilla leaf(17.3%), ulgari(13.6%), leek(12.4%), crowndaisy(12.4%), asterscaber(12.4%), chard(11.1%). Detected pesticides were procymidone(3.9%), endosulfan(2.6%), chlorfenapyr(2.2%), bifenthrin(1.3%), cypermethrin(0.7%), metalaxyl(0.9%), azoxystrobin(0.3%) and chlorothalonil(0.7%). Sixty-four pesticides were detected and 11 pesticides were newly detected in 2007. Thirty-one pesticides in agricultural products exceeded their MRLs.

• Journal of Food Hygiene and Safety
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• v.24 no.4
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• pp.357-367
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• 2009

This study was carried out to investigate the current status of pesticide residues in 3,735 agricultural products in the northern area of Seoul from January to December in 2008. 3,735 samples, comprising 119 types of agricultrural products were assessed via a multiresidue method to detect 260 pesticides. Pesticide residues were detected in 19.7% (737 of 3,735 samples), and the rate at which the detected residues violated the maximum residue levels(MRLs) of the Korean Food Code was 3.2% (121 of 3,735 samples). Pesticide residues were detected in 72 spin-aches, 64 peppers, 45 sweet peppers, 40 perilla leaves, 38 korean cabbages and 37 dried agricultural products. The samples that violated the MRLs included 14 perilla leaves, 13 spinaches, 12 leek, 6 lettuces(leaf), 6 chards and 6 gyeojchaes. Procymidone, endosulfan, chlorfenapyr, cypermethrin, bifenthrin, tebuconazole and fenvalerate were all frequently observed. Procymidone, endosulfan, dimethomorph and diniconazole were the pesticides most frequently detected at levels that violated the Korean Food Code MRLs.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 2005.04a
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• pp.167-170
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• 2005

대부분의 폐광산 주변 농경지 토양은 비소 및 여러 중금속으로 오염되어 있으며, 이러한 중금속들의 지속적인 용출에 의해 주변 지하수 오염과 재배 농산물의 중금속 축적이 우려되고 있다. 오염토양에서의 중금속 용출에 의한 오염을 막기 위하여 본 연구에서는 개량제를 이용한 안정화 공법을 선택하여 하부로 배출되는 중금속의 용출율을 감소시키는 실험을 실시하였다. 생석회(CaO)를 개량제로 이용하여 실제 오염 농경지 현장과 비슷한 대형칼럼을 제작한 후 인공강우를 주입, 하부로 용출되는 중금속의 농도를 측정함으로써 생석회 첨가에 의한 용출율 감소를 규명하였다. 개량제를 비오염토와 혼합하여 오염토양 상부에 복토한 것과 오염토와 혼합하여 객토한 칼럼을 각각 제작하였으며 투입되는 생석회의 양도 $2{\sim}10%$로 다양하게 적용 하였고, 첨가된 개량제의 성상도 분말과 입상으로 나누어 실험하였다. 주입하는 인공강우는 연구지역 주변의 10년간의 연 평균 강수량을 토대로 산정하였으며, 복토와 객토를 하지 않은 오염토양도 같은 조건에서 용출을 실시하였다. 실험결과 생석회의 성상에 따른 중금속 용출율의 차이는 없었으며, 개량제 함량은 5%가 적당한 것으로 나타났다. 복토와 객토를 비교하였을 때 용출되는 중금속의 농도는 객토가 복토에 비해 낮아 중금속 용출율 감소효과가 매우 큰 것으로 나타났으며, 중금속의 종류에 따라 용출율 감소의 차이를 나타내었다. 복토법의 경우 As의 용출율은 분말 생석회를 5% 복토한 경우 용출율이 10배 감소하고 Cd의 경우 2%와 5% 복토한 경우 각각 25배와 161배 감소하는 것으로 나타났다. Pb의 경우 생석회로 5%로 복토한 경우 10배정도의 용출율 감소를 보였고 Zn의 용출율은 분말, 입상 생석회를 5% 복토한 경우 80배$\sim$155배 감소하는 것으로 나타났다. 객토법의 경우 입상생석회를 5% 복토한 경우 Cd과 Zn 각각 200배에서 400배의 용출율 감소를 나타내었다.

• Journal of Korean Society for Geospatial Information Science
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• v.22 no.3
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• pp.31-37
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• 2014

It is usual for the officially land price of agricultural field parcels to be determined by real estate appraisers's experienced knowledge and intuition without considering quantitatively physical factors that directly influence agricultural productivity. Solar radiation is the most important predictor of agricultural productivity. GIS based simulation techniques were used to evaluate correlation between the officially land price and solar radiation for agricultural field parcels. The results show that officially land price shows random distribution patterns in relation to solar radiation, which proves that officially land price for agricultural field does not reflect agricultural productivity. It is anticipated that this research output could be used as a valuable reference to support more scientific and objective decision-making in the official pricing process of agricultural field parcels.

• The Korean Journal of Food And Nutrition
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• v.25 no.2
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• pp.215-223
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• 2012

The principal objective of this study was to evaluate the consumption behavior of housewives in the Jeonju area with respect to their use of environmentally-friendly agricultural products(EAPs) and to assess the need for EAPs in childcare centers also in the Jeonju area. Self-administered questionnaires were given to and collected from 278 housewives 42.4% of whom employed and 57.6% were unemployed. Statistical data analysis was performed on the data collected using SPSS v. 12.0. The average score of awareness about EAPs was $3.57{\pm}0.56$. The percentage of subjects who purchased EAPS was 76.3% regularly. On this group, 40.3% purchased EAPs 1~2 times in week. Unemployed housewives purchased more than employed housewives by a statistically significant margin(p<0.05). The most-purchased EAPs were vegetables. The average satisfaction score that housewives reported in relation to foodservice provided in childcare centers was $3.66{\pm}0.58$. About 65% of the respondents felt that the EAPs-foodservice in childcare centers was an important factor for them in choosing of a childcare centers. Approximately 42% of the housewives responded that EAPs-foodservice in childcare centers was needed to improve the safety of foodservice provided in chidcare centers. The percentage of subjects who wanted to expand EAPs-foodservice in childcare centers even though the parents would have to bear some of the financial burden was 42.5%. A higher proportion of employed housewives wanted to expand EAPs-foodservice in childcare centers more than unemployed housewives, and this finding was statistically significant(p<0.05).

• Journal of the Korean Dietetic Association
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• v.10 no.4
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• pp.452-466
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• 2004

The purpose of this study was to assess the use of food materials at elementary school in Busan area and provide school meal management with basic data to improvement of guideline. A survey was done by e-mail with a set of questionnaires, which was responeded by 122 dietitians in elementary school foodservice. The results were as follows; Sixty percent of the dietitians though to the general imported food materials had to use. Regarding mean score of using the imported food materials; safety was 2.12/5.00, freshness 2.48/5.00, sanitation 2.68/5.00, nutrition 2.73/5.00, preference 2.93/5.00, external form 3.09/5.00, package 3.12/5.00, and price 3.63/5.00. Thirty seven percent of the dietitians had purchase the pro-environment farm products(PEFPs) and 32.0% of them purchased those products for the students' health. But 52.4% could not purchase to the PEFPs because of expensive price. They had negative opinions about deficient supplying of PEFPs 4.51/5.00, too expensive price 4.34/5.00, and the truth or false in source of PEFPs 3.96/5.00. Most of them perceived that using the PEFPs had to apply the step by step. Among of them, 33.9% had the knowledge of PEFPs, but 16.4 of them did not know to the PEPPs. 57.4% of them hoped to purchase the food materials through a center of supporting school meal servcie(it called non-profit-making organizations).

• Journal of Distribution Research
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• v.4 no.3
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• pp.87-103
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• 2000

Throughout the nation, each local Agricultural Cooperative (AC) has built its own agri-products processing factory in order to provide the steady demand source for the locally produced agri-products. However, each factory of AC has performed poorly with no competitive advantages against the national brands of private companies. Thus, from the perspective of the National Agricultural Cooperative Federation (NACF), the current situation of unorganized and inefficient management of the factories under the control of each local AC needs to be improved. In this case analysis, we introduce the problems of the AC factories and discuss the NACF's approach to solve the problems. In particular, given that AC as well as NACF are the non-profit organizations, it is worthwhile to fay special attention to the process of restructuring the system of distribution channels for the processed agri-products with the concept of marketing.