• 한국유기농업학회지
• /
• 제25권4호
• /
• pp.875-901
• /
• 2017

유기농업이 생물 다양성에 미치는 효과가 제한적이라는 일부 회의적인 시각이 있긴 하지만, 유기농업은 토양의 물리적 및 생태학적 특성과 생물 다양성에 영향을 미치는 것으로 받아들여지고 있다. 본 연구는 충청북도 괴산지역에서 유기농업과 관행농업을 시행하는 논과 밭을 대상으로 경작 기간 중 채집된 무척추동물의 종을 분류 동정하여 농법의 차이에 따른 생물 다양성의 변화를 비교 분석하였다. 조사 기간인 2016년 6월부터 10월까지 채집된 총 249종의 무척추동물 중에서, 유기농업을 시행하는 지역의 논과 밭에서는 각각 104종과 108종이 관찰된 반면, 관행농업을 시행하는 논과 밭에서는 각각 84종과 77종이 관찰되어, 산술적으로 관행농업 지역에 비해 유기농업 지역의 종 다양성이 약 20% 높은 것으로 비교되었다. 특히 유기농업의 시행에 따라 곤충류와 거미류의 분류군에서 긍정적인 종 다양성 변화가 관찰되었다. 한편, 유기농업 논에서는 노린재목, 파리목, 벌목, 거미목 등의 분류군이, 그리고 유기농업 밭에서는 노린재목, 딱정벌레목, 거미목 등이 관행농업 지역의 논과 밭에 비해 생물 다양성이 증가하는 것으로 분석되어, 유기농업 시행에 따른 생물 지표종의 선정을 위해서는 향후 이들 분류군에 대한 정밀한 조사가 필요할 것으로 생각된다.

• 한국유기농업학회지
• /
• 제16권4호
• /
• pp.367-390
• /
• 2008

Consumer's concerns over beef safety are increasing according to resuming U.S. beef import. And a few beef producers have converted into organic beef recently. This organic beef must have taste, nutrition and safety that consumers demand for. Korean organic beef should be gone on sale at the shop under direct management of producer's organizations or the special shop for Environmentally friendly products. So they should win consumers' confidence for beef safety and transparency in producing and marketing process.

• 한국유기농업학회지
• /
• 제15권3호
• /
• pp.237-256
• /
• 2007

Organic farming is promoted financially in the Republic of Korea since 2000. The, entire segment shows a very dynamic development since that time. Now, a large bouquet of measures are offered which target the promotion of organic farming. This article presents a study about the Task and Valuation on farm animal welfare for Organic Livestock. Among the supports are grants for organically managed livestock farm, investment incentives, the promotion of organic livestock husbandry, the promotion of producer co-operatives, the development of farm animal right index for animal health and animal welfare, publicity measures and measures to raise consumer awareness as well as the support of training, extension and research in the field organic livestock farming. Government must ensure that necessary incentives and sanctions are in place to maintain and improve animal welfare standards and they must be delivered appropriately. Animal welfare legislation provides essential protection for economy, environment, animals and society as a whole, must be properly observed.

• 한국유기농업학회지
• /
• 제19권4호
• /
• pp.435-461
• /
• 2011

This study was conducted field surveys and theoretical discussion whether small farmers thinks there are economics of scope in small organically grown cropslivestock farming cycling system. The discussions are summarized as follows. At the end of October 2011, the cycling agriculture farms are only a total of 15 farmers, 0.1% of total organic farms in Korea. The FMD disease, FTA, family farm structure, the importance of animal health and welfare, agricultural cycles, when considering the valuation of the multifunctionality, alternative agriculture is small farming cycling system. Organic agriculture is a 'cooperation-cycling-family farm' in the interaction it is important to understand. The two groups were surveyed. Group 1 is 6 farmers who practicing cycling farming system, and Group 2 is the 33 farmers who wish to cycling farming system. Interview survey and the survey results was obtained as follows. First, We find that there are strong economies of scope, due to a decreased costs have increased net profit. Second, the multifunctional values is realized also cycling farming system. Third, but some certification standards leads to high transaction cost. Thus, a small family farm who wishing to target organic livestock certification standards need to improve.

• 한국유기농업학회지
• /
• 제19권spc호
• /
• pp.47-49
• /
• 2011

• 한국유기농업학회지
• /
• 제7권2호
• /
• pp.67-88
• /
• 1999

• 식물병연구
• /
• 제19권4호
• /
• pp.300-307
• /
• 2013

This study was conducted to determine the occurrence of leaf rot and leaf ring spot, caused by Rhizoctonia solani in Chinese cabbage under seedling nursery and cultivation greenhouses. Symptoms of leaf rot and leaf ring spot were found in three Chinese cabbage cultivars, Brassica campestris subsp. pekinensis, 'Ryeokgwang', 'Daetong', and 'CR mat'. In Hwacheon, the disease incidence was 73.8% in the seedling stage of the Chinese cabbage. In Icheon, the symptoms were observed on the upper leaves of the Chinese cabbage cultivar, 'Norangmini' with 20.5% of disease incidence. The symptoms appeared as primary lesions consisting of small, circular necrotic ring spots with gray color, 1.4-3.0 mm in diameter, accompanied by secondary rot lesions with large irregular borders of leaves. The color of mycelial mat of 20 isolates was dark brown and light brown. The average hyphal diameter of all the isolates was within 5.01-11.12 ${\mu}m$. Among the 20 strains isolated from Chinese cabbage, 16 isolates and four isolates anastomosed with the AG-1 (IB) and AG-1 (IC), respectively. Twenty isolates tested were only virulent on foliage parts of Chinese cabbage leaves but were avirulent on stem parts of the plants. Based on the mycological characteristics and pathogenicity test on host plants, the fungus was identified as Rhizoctonia solani.

• 한국유기농업학회지
• /
• 제12권2호
• /
• pp.135-151
• /
• 2004

U.S. organic farming has grown rapidly-20 percent or more annually-throughout the 1990s, which kept pace with consumer demand for organically produced food. Thus certified organic acreage is the total to 235 million acres in 48 state in 2001, and SO the U.S. ranked fourth in land area managed under organic farming systems. And according to several surveys, consumer's reasons for purchasing organic food are health and nutrition, taste and environmental concerns. California and North Dakota were the top two states in 2001 for certified organic cropland; the former with mostly fruits and vegetables, and the latter with wheat, soybeans, and other crops. And the top two states for certified organic pasture were Colorado and Texas. And then several states such as Iowa and Minnesota have begun subsidizing conversion to organic farming systems as a way to capture the environmental benefits of these systems. The price of organic produce fluctuates rather broadly because of being traded by market economy principle and of demand-supply disequilibrium. Nevertheless, average price premiums for organic produce are higher than the prices for the produce under conventional farming. Future prospects for U.S. organic farming are as follows; Demand for organically grown foods is expected to continue growing at a rapid pace, as more growers convert to organic production and more processors and distributors expand organic selections in their product lines. And new processed products and new types of healthy foods are likely to appear on the market, and some new organic products will be aimed at mainstream markets.

• 한국토양비료학회지
• /
• 제50권5호
• /
• pp.462-471
• /
• 2017

A more efficient use of nutrients from organic sources can benefit both farmers and water quality in agriculture. In this paper we reviewed information related to the regulations and guidelines of a swine liquid fertilizer to propose an establishment scheme for the official standards of swine manure slurry as a liquid fertilizer for organic farming. According to the law of establishment and designation of official standard of fertilizers, the liquid fertilizer made with pig liquid manure belongs to the byproduct fertilizer as of one of organic fertilizer. However, the official standards for byproduct fertilizers including the liquid fertilizer set by the Rural Development Administration (RDA), especially for a liquid swine manure fertilizer, should be revised to meet the goals of laws pursuing the environmentally sound agriculture, especially for organic farming because the terms and relevant standards need additional specific standards alike the standards such as impurities and parameter for declaration in EU. Therefore, it is suggested that official standards for byproduct fertilizers should be revised with respect to nutrient, salt content as of SAR and Na content instead of NaCl. Also we need to develop the maximum limit of heavy metals in soil to which the liquid fertilizer can be applied, as well as application rate depending on EC of the liquid fertilizer.

• 한국유기농업학회:학술대회논문집
• /
• 한국유기농업학회 2002년도 상반기 학술발표 및 심포지엄
• /
• pp.133-141
• /
• 2002