• 한국유기농업학회지
• /
• 제5권1호
• /
• pp.149-165
• /
• 1996

In order to get some basic datas on environmental friendly funtion against soil and water pollution and safe vegetable production by organic farming, chemical characteristics of soils cultivated by the conventional farming, greengouse cultivation and organic farming and acumulation of NO3--N in chinese cabbage and lettuce were analysed. The highest value of NO3--N in 0-30cm subsoil of organic farming was found among the 3 different farming systems, and it was 3.6 and 6.6 times higher than those of conventional farming in chinese cabbage and lettuce respectively. P2O5 also show high accumulation in the rhizosphere of organic farming compared to convnetional farming. The accumulation of NO3--N and P2O5 in the rhizosphere of organic farming were simial to those of greenhouse cultivation. The NO3- accumulation in chinese cabbage and lettuce by organic farming reach 3224ppm in chinese cabbage and 2543ppm in lettuce and it were 4.7 and 6.4 times higher than those of convnetional farming. It is urgently necessary to introduce the basic standard of IFOAM, EU and FAO/WHO Codex on organic agriculture into korean organic agriculture for operation of environmental friendly system and production of safe vegetable in terms of NO3-.

• 한국토양비료학회지
• /
• 제51권1호
• /
• pp.50-60
• /
• 2018

This study was to evaluate the effect of organic amendments incorporation on soil properties and plant growth under two different soil salinity levels and various cultivated crops at Saemangeum reclaimed tidal land for three years from 2012 to 2014. The soil texture of the experimental site was sandy loam. Four different crops, sesbania (Sesbania grandiflora), sorghum-sudangrass hybrid (Sorghum bicolor-Sorghum sudanense), rice (Oryza sativa L.) and barley (Hordeum vulgare) were cultivated at low (< $1dS\;m^{-1}$) and high (> $4dS\;m^{-1}$) soil salinity levels. The soil salinity was significantly lowered at the rice cultivation site compared to continuous upland crops cultivation site in high soil salinity level. But the soil salinity was increased as cultivating sesbania coutinuously in low soil salinity level. The soil organic matter content was increased with the incorporation of straw at the continuous site of rice and barley, and the average of soil organic matter was increased by $0.9g\;kg^{-1}$ per year which was effective in soil aggregate formation. The highest biomass yield plot was found in barley (high salinity level) and sesbania (low salinity level) cultivation site, respectively. Our research indicates that rice cultivation in paddy field with high salinity level was effective in lowering soil salinity and sesbania cultivation was useful to biomass production at upland with low salinity. In conclusion, soil salinity and organic matter content should be considered for multiple land use in newly reclaimed tidal land.

• Journal of Forest and Environmental Science
• /
• 제35권3호
• /
• pp.173-180
• /
• 2019

This study determined the economic impact of environment-friendly cultivation and the optimal cultivation area of Omija (Korean for Schisandra chinensis Baillon) for full-time farmers by analyzing the management performance of existing Omija cultivators. The study divided the target income into urban household income and Omija farm income, and estimate the optimal cultivation area by substituting the target profit from the cost-volume-profit analysis model. The optimum cultivation area was 1.4 ha for general cultivation, 1.08 ha for organic cultivation, and 1.18 ha for pesticide-free farming cultivation considering the average urban household income as the target, and 0.81 ha for general cultivation, 0.63 ha for organic cultivation, and 0.69 ha for pesticide-free farming, considering the average 2012 farm household income as the target. Therefore, the study reached conclusion that it is necessary to secure the price of Omija farm and stable support for income increase. Therefore, the support plan for income stabilization of Omija farm should be considered. Especially, the central government should provide various policies and financial support to help the optimal cultivation area of Omija Farm.

• 한국유기농업학회지
• /
• 제19권spc호
• /
• pp.230-233
• /
• 2011

We collected and examined germplasm resources of lettuces, edible chrysanthemums and mallows for organic farmers. We found that 3 genotypes (OL-51, OL-52, and OL-63) are suitable for organic cultivation. The main use of treatment for grey mold among eco-friendly pest control methods is helpful to increase efficiency of seed-gathering after collecting and evaluating a total of 64 kinds of lettuces-collected 43 South Korea local varieties, 8 kinds cultivated by the Highland Agriculture Research Center, 4 kinds of cultivated lettuces, and 9 kinds for sales- to choose appropriate kinds of lettuces for organic cultivation in South Korea. We chose those with more than 300 leaves (OC-18, OC-44, and OC-51) after evaluation of yield characteristics of a total of 62 edible chrysanthemums. We covered each genotype of seed of edible chrysanthemums when gathering the seeds by ourselves so as not to decrease the purity of each genotype. We chosed OM-38, OM-39, and OM-40 for their yield performance and germination rates among the total 41 genotypes of mallows. We selected 9 genotypes of lettuces, editable chrysanthemums and mallows with possibility of organic cultivation and found that they can be used permanently through self seed-gathering on organic farms.

• 한국작물학회:학술대회논문집
• /
• 한국작물학회 2018년도 추계학술대회
• /
• pp.125-125
• /
• 2018

• 한국유기농업학회지
• /
• 제2권1호
• /
• pp.2-15
• /
• 1993

Major vegetables and fruits in Korea are grouped in 3 Categories according to the Concentration of NO3- content in edible parts of the plant. NO3- content are high in order fruit

• 한국버섯학회지
• /
• 제20권2호
• /
• pp.35-42
• /
• 2022

본 연구는 최근 소비자들의 안전한 먹거리에 대한 수요증가로 생산과 소비가 확대되고 있는 유기농산물 생산과 관련된 국내외 주요 규정과 유기농 버섯의 인증절차와 산업동향을 살펴보고자 수행하였다. 유기농버섯의 경우 2021년 전국의 인증농가 405개소, 재배면적 3,886,628 m², 인증계획량 6,011톤이며 전라남도가 농가수 221개소, 재배면적 2,923,402 m², 인증계획량 2,132톤으로 농가수 55%, 재배면적 75%, 인증계획량 35%로 전국 1위를 차지하고 있으며, 유기농버섯의 버섯종류별 현황은 표고버섯이 농가수 369개소, 재배면적 3,805,636 m², 인증계획량 3,576톤으로 농가수 91%, 재배면적 98%, 인증계획량 60%로 1위를 차지하고 있다. 전라남도는 버섯뿐만 아니라 다른 농산물에 있어서도 유기농산물 및 친환경농산물이 전국에서 높은 비율을 차지하고 있다. 이는 전남이 농업비율이 높고 전남도의 유기농업 지원에 정책적으로 뒷받침한 것으로 해석된다.

• 한국유기농업학회:학술대회논문집
• /
• 한국유기농학회 2009년도 상반기 학술대회
• /
• pp.93-131
• /
• 2009

• 한국유기농업학회지
• /
• 제14권3호
• /
• pp.305-313
• /
• 2006

대단위 오리농법 지역에서 오리방사 대신 두과작물인 헤어리베치를 사용하여 유기 벼재배 현장에서 효과 검정을 수행한 결과는 다음과 같다. 1) 유기벼 재배시 휴한기에 헤어리베치를 재배함으로서 오리농법 재배 외에 친환경 비료절감 기술로도 이용이 가능하였음. 2) 두과작물인 헤어리베치를 활용함으로서 토양의 물리성 및 작물 생산성 확보가 가능하였음. 3) 두과작물인 헤어리베치 시용으로 대단위 오리농법에 의한 농업용수 수질오염에 대한 효과도 있었음.

• 한국유기농업학회지
• /
• 제23권2호
• /
• pp.281-289
• /
• 2015

In sustainable viticulture, green manure represents a safe and non-polluting way to bring large quantities of organic matter into the soil. The cultivation of green manure crops plays an important role in soil quality and sustainability of agricultural system. This study was conducted to evaluate the effects of green manure fertilization on yield and quality of the Campbell Early grape variety in the organic vineyard. Hairy vetch was the more productive green manure crop, yielding higher dry materials. Average yields of grape were significantly greater in hairy vetch+rye ($13.02ton\;ha^{-1}$) than nature weed ($11.65ton\;ha^{-1}$), respectively. The concentrations of total as well as individual anthocyanins were consistently higher with hairy vetch treatment compared with rye and nature weed, thus making the green manure cultivation is an environmentally friendly cultivation to increase the yield and anthocyanin contents in organic grape.