• 한국유기농업학회:학술대회논문집
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• 한국유기농학회 2011년도 상반기 국제 심포지엄
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• pp.69-78
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• 2011

• 한국균학회지
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• 제47권3호
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• pp.233-240
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• 2019

잎새버섯 안정생산을 위하여 배지의 pH를 적정하게 조절할 수 있는 방법을 개발하고자 유기산을 이용한 pH 조절 및 적정 첨가농도를 구명하기 위하여 수행하였다. 혼합배지에 4종의 유기산(구연산, 호박산, 사과산, 주석산)를 5수준(0.5, 1, 1.5, 2, 2.5, 3%)으로 처리하여 균사생장정도를 측정한 결과 유기산 0.5% 수준에서 균사생장이 빨랐으며, 그 중에서도 호박산이 가장 우수하였다. 유기산의 첨가농도가 높을수록 혼합배지의 pH는 낮아지는 경향으로 배양기간 경과에 따라 대조구의 pH는 서서히 낮아지는 경향을 보인 반면 유기산 처리구는 유지되는 경향이었다. 발이율은 0.5%의 농도에서 호박산이 95%, 구연산 92.5%, 사과산과 주석산 80%로 대조구의 60%보다 우수하였다. 그러나 유기산의 농도가 1% 이상에서는 발이가 지연되거나 억제되는 경향을 보여주었다. 배양기간은 유기산 0.5% 처리구가 30~34일로 대조구의 35일보다 빠른 것으로 나타났으며, 전체 재배기간은 0.5% 호박산이 52일, 0.5%의 구연산과 사과산이 54일, 0.5%의 주석산이 52일로 대조구의 59일보다 빠른 것으로 나타났다. 병당 수량성은 0.5%의 호박산과 구연산 첨가 시 각각 121 g, 107 g으로 가장 우수하였고 대조구의 87.5 g에 비해 21~37% 증수되었다.

• 한국유기농업학회지
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• 제26권2호
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• pp.173-180
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• 2018

This study was conducted to investigate farmers' satisfaction in organic farming technologies developed by the Rural Development Administration (RDA). The survey targeted farmers who were eco-friendly or interested in eco-friendly agriculture. 70% of the target farmers were doing eco-friendly farming, and the satisfaction rate of the technology developed by the RDA was 3.85 points. The satisfaction of the farmers who participated in demonstration and demonstration of the farming field of the developed technology was 4.00 and the satisfaction level of organic farming instruction manual was 3.95. In addition, 38.4% of the surveyed areas were found to be pest control areas, and the impacts on the satisfaction of the organic cultivation related technology utilization and the satisfaction of the organic cultivation guide were analyzed. As a result, the RDA needs to develop and supply customized technology for aged small farmers.

• 한국유기농업학회지
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• 제8권3호
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• pp.17-34
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• 2000

This paper is aim to report the core aspects of Codex guideline for organically grown food which is finalized by FAO/WHO Codex Alimentarius Commission on May 2000 in 28th session of the Codex committee on food labelling. The chapter of animal production had discussed for a long time before it was finalized in Ottawa/canada as well as use of GMO(Genetically modified organism), manure from factory farming, animal welfare, and fodder inputs consisting of at least 85% for ruminants and 80% for non-ruminants. As the guideline for Codex set out the several things which is very difficult for Asian country, Organic farmer in Korea should pay an attention to maintain/increase the fertility and biological activity by cultivation of legumes, green manures or deep-rooting plants in an appropriate multi-annual rotation programme, and incorporation in the soil of organic material from holding producing in accordance with the guidelines. Pest, diseases and weeds should be controlled by choice of appropriate varieties, appropriate rotation, mechanical cultivation, diversified ecosystems, flame weeding, animal weeding and steam sterilization. The use of plant growth hormone, GMO and manure from industrial management system are not allowed, and closed recycling system, rotation, resistant seeds again pest and disease should be practiced in organic farming. But these are not unfortunately practiced in the country. In the conclusion it was strongly suggested to enact the Basic Standard for Korean organic agriculture which contains the core principles of Codex guidelines, and to try the importation of the most advanced theory, skills and technology from leading country in organic farming.

• 한국버섯학회지
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• 제21권3호
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• pp.154-159
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• 2023

표고 톱밥재배용 무포자 품종의 육성을 위해 수집균주 중 우량계통의 단포자 교배를 통해 육성된 '대담'의 주요 특성은 다음과 같다. '대담'의 균사생장 적온은 22~.25℃, 발이 및 생육온도는 16~18℃이었으며, 자실체 형태는 평반구형이며 갓을 형성하지 않는 무포자품종이다. '대담'은 배양기간이 21일, 갈변기간 96일로 대조품종('화담')과 유사하였고, 발이기간은 5일, 생육기간은 9일로 전체 재배기간은 134일로 같았다. '대담'의 개체중은 32.4g으로 대조품종과 유사하였고, 유효개체수는 6.8개로 대조품종 보다 1.3개 낮았으며, 총수량은 222g으로 대조품종의 266g에 비해 낮았다. '대담'의 자실체는 대조품종 대비 갓이 두껍고, 갓 직경은 다소 작았으며, 대의 굵기는 작고 긴 특성을 보였다. '대담'의 배지형태별 생산성 분석결과, 1.2kg 원통형 배지에서 생물학적 효율이 26.7%로 3kg 봉형배지보다 높았으며, '하나참'와 비교 시 재배기간이 40일 짧고 수량도 유사하여, 단기 재배용 품종으로 활용이 가능할 것으로 생각된다.

• 유기물자원화
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• 제25권4호
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• pp.23-29
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• 2017

본 연구는 조사료 생산 분야에서 화학비료를 사용하는 관행농법에서 벗어나 유기재배 기술개발을 위하여 관행재배와 유기재배의 수량성, 사료가치 등을 비교 조사하였다. 시험은 전남 강진군 작천면 소재 축산연구소의 논에서 수행하였다. 유기질 비료로는 질소성분이 4.0% 함유된 유박비료를 이용하였으며, 시험구 편성은 대조구(Con)와 대조구 질소 함량 기준으로 환산하여 유박비료 100% 처리구(T1), 유박비료 150% 처리구(T2), 유박비료200% 처리구(T3)로 구성 하였다. 시험품종은 수수${\times}$수단그라스 교잡종(SX17)을 5월 25일에 ha당 40kg을 휴립세조파(조간 50cm)로 파종하였다. 수확기 처리구별 초장은 대조구 317cm, T1 252cm, T2 269cm, T3 293cm으로 대조구가 가장 우수하였고, 시비 처리구에 따른 시험구에서는 시비량의 증가에 따라 증가하였고, 건초량은 대조구 11.386kg/ha, T1 6,015kg/ha, T2 6,799kg/ha, T3 7,627kg/ha으로 초장의 생육과 동일한 경향을 보였다. 조단백질은 대조구 7.0%, T1 5.7%, T2 6.3%, T3 5.1%로 시험 처리구에서는 T2에서 가장 높았다. 이와 같은 결과로 유박비료를 대조구 시비량 질소 함량 대비 150% 시비에서 사료가치는 유의적 차이를 보이지 않았으나, 초장과 건초량이 증가가 이루어졌으므로 150% 기준으로 시비하는 것이 적합할 것으로 판단된다.

• 한국유기농업학회지
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• 제19권spc호
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• pp.123-126
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• 2011

To investigate the forecasting of plant disease and insect for an agricultural complex and farm in environment-friendly cultivation of Rice, environment-friendly agricultural five complexs and five farms were selected in Youngam and Naju area, Jonnam, Korea. Preventation objects of plant disease and insect were leaf blast, neck blast, sheath blight, bacterial leaf blight, and hopper. Factors of sheath blight occurrence in environment-friendly agricultural complex were a fast transplanting time and a narrow planting density. Bacterial leaf blight in rice occurred severely in the area under water. Rice growth in environment-friendly agricultural complex was decreased heavy drying by hopper appearance.

• 한국유기농업학회지
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• 제21권2호
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• pp.139-155
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• 2013

The purpose of this study is to analyze the effects of abolishing the low-pesticide agricultural product certification on environmentally friendly farming. A survey was conducted to quantitatively analyze farming practices and factors that change farming practice. It was found that only 17.0% of low-pesticide fruit farmers said that they will change their farming practice into organic or pesticide-free farming. With regard to the factors of farming practice change, binomial logistic regression model was applied for the analysis. In the analysis, it was found that farmers who grow the low-pesticide agricultural product are more likely to change their farming practice into organic or pesticide-free farming, as their expected price of organic or pesticide-free products is high, their area size is small, price premium of low-pesticide agricultural product is low, the frequency of their training is high. It is necessary to enhance the direct payment system to enlarge organic and nonpesticide acreage, and pest management techniques for fruits should be developed for low-pesticide fruit farmers to change their practice into organic and nonpesticide practice. Dissemination of cultivation manual, introduction of insurance to farmers, improvement of certificate system, and advertising and marketing of environment-friendly agricultural products are useful to develop environment-friendly agriculture.

• 농업과학연구
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• 제24권1호
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• pp.94-107
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• 1997

Producing organic farm products is one of the high-payoff farming practices considering the rapid increase of consumer's purchasing power. The purpose of this study is to identify the optimal organic farming system in relation to farm income. To cope with the above objectives, present farming conditions and profitability of 15 farmers producing organic products including rice and leaf vegetables as lettuse and cabbage were surveyed in Hongsung and Ahsan Gun, Chungnam Province. Based on the surveyed data, maximization of organic farm income were analyzed under the constrained conditions such as limited monthly labour inputs and competitive use of land by Linear Programming Model. The results of this study can be summarized as follows. 1. In the profitability analysis of 15 farmers producing organic products, rice farmers could earn their farm income more than that of conventional farmers by 50%. On the other hand, the controlled lettuce farmers could get more about 100% than that of it. But the controlled cabbage farm could get more about 40% of it. These organic farm products were saled at high prices comparing with the prices of conventional farm products by 170% ~ 230% even though the crop yields produced by organic materials had decreased. 2. According to the labor requirement of the organically produced crops, rice cultivation was needed more labour inputs than the conventional farming method by 130%. On the other hand lettuce and cabbage could saved labour requirement by 40% and 80% of those respectively. Especially for the rice cultivation concern, higher labor requirement was due to the activities as organic fertilization, soil preparation and pest and weed controll, etc. 3. With the surveyed data from farmers who produced farm commodities, L.P. analysis was implemented to find out the optimul farming system and the maximum income. According to the results of L.P. analysis, 58% of total farm income could get more than the conventional farming system In the case of rice cultivation, one ha of paddy was recommendable to save more labour inputs than the controlled leaf vegetables such as lettuse and cabbage. However, in the controlled leaf vegatables, only 73% of total upland equivalent to 0.3 ha should be cultivated under the condition of labor shortage as the restricted 4 workers. And increasing the size of hogs raising should be recommened to achieve self-sufficiency of organic fertilizer. As pointed out the possibility of organic farming, present farmers producing organic farm products could be able to maximize their income by expanding organic farm size with regard to all conditions of our organic industry. Of course, there are many difficulties in the course of developing organic agriculture. So Government should effort to support the development of our organic agriculture considering the various aspects of production, marketing, Quality certification of organic produces.

• 한국유기농업학회지
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• 제23권1호
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• pp.113-121
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• 2015

본 연구는 전작물 재배에 따른 마늘 흑색썩음균핵병 피해 경감 효과를 평가하기 위해 2 년간 수행되었다. 콩 참깨 호박 네마장황, 대파를 전작물로 재배하였으며, 대조구로 휴경처리구와 병원균 무접종구를 두었다. 전적물 재배 후 마을을 파종하고 재배하면서, 흑색썩음균핵병 이병주율과 수량을 조사하였다. 2013년 흑색썩음균핵병은 병원균 무접종구, 콩, 네마장황처리구에서 가장 낮았으며, 호박처리구에서 가장 높았다. 2014년에는 네마장황, 콩, 대파처리구에서 흑색썩음균핵병 이병주율이 낮았으며, 호박처리구에서 가장 높았다. 처리구 별 마늘의 수량은 2013년에는 콩, 네마장황, 대파 처리구에서 가장 높았고 호박처리구에서 가장 적었으며, 2014년에는 콩, 네마장황, 대파처리구에서 높았고, 호박처리구에서 가장 적어 이병주율과 유사한 경향을 보였다. 이상의 결과를 토대로 콩-마늘과 네마장황-마늘재배체계가 흑색썩음균핵병을 억제하기 위한 윤작체계가 될 수 있을 것으로 생각되었다.