• 인간식물환경학회지
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• 제23권3호
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• pp.277-291
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• 2020

Background and objective: The purpose of this study is to investigate the effects of visitors' positive emotions on satisfaction and loyalty with the perception of restorative environment of a healing garden created in an urban agriculture expo. Methods: The psychological indicators to the images of the healing garden were analyzed by the visitors' demographic variables and the three factors of plant cultivation activity level: plant cultivation experience, plant preference, and plant-related event. Results: Between age groups and occupational groups, significant differences were found statistically. The Perceived Restorativeness Scale(PRS) showed significantly differences between age groups in repose, fascination and legibility. The Positive Affect & Negative Affect Schedule(PANAS) showed statistically significant differences between age groups in positive emotions. In addition, we investigated the correlation between the PANAS and the three factors of plant cultivation experience level, the four factors of the PRS, satisfaction and loyalty. The three factors of plant cultivation experience level, the four factors of the PRS, satisfaction and loyalty showed a positive correlation with positive emotions and were inversely correlated with negative emotions significantly. Multiple regression analysis with dummy variables was conducted to examine the effects of plant cultivation activity level, attention restoration, and the PANAS on healing garden visitors' satisfaction and loyalty. As a result, among the four factors of the PRS, fascination and positive affectivity were significant variables that affect healing garden visitors' satisfaction and loyalty. Conclusion: The results indicated that the higher the attention restoration of visitors due to the fascination of the healing garden and the higher their positive affectivity and the more they have plant-related memories, the higher their impact on healing garden visitors' satisfaction and loyalty. Therefore, fascinating natural environments or greenery landscapes like healing gardens where people can contact plants would reduce negative emotions such as anger and sadness but to increase positive emotions such as pleasure, joy and satisfaction.

• The Plant Pathology Journal
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• 제32권6호
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• pp.575-579
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• 2016

Burkholderia glumae (bacterial grain rot), Xanthomonas oryzae pv. oryzae (bacterial leaf blight), and Acidovorax avenae subsp. avenae (bacterial brown stripe) are major seedborne pathogens of rice. Based on the 16S and 23S rDNA sequences for A. avenae subsp. avenae and B. glumae, and transposase A gene sequence for X. oryzae pv. oryzae, three sets of primers had been designed to produce 402 bp for B. glumae, 490 bp for X. oryzae, and 290 bp for A. avenae subsp. avenae with the $63^{\circ}C$ as an optimum annealing temperature. Samples collected from naturally infected fields were detected with two bacteria, B. glumae and A. avenae subsp. avenae but X. oryzae pv. oryzae was not detected. This assay can be used to identify pathogens directly from infected seeds, and will be an effective tool for the identification of the three pathogens in rice plants.

• 한국환경과학회지
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• 제30권5호
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• pp.379-389
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• 2021

Soil microorganism activity in an agricultural field is affected by various factors including climate conditions, soil chemical properties, and crop cultivation. In this study, we elucidate the correlation between microorganism activity and agricultural environment factors using the dehydrogenase activity (DHA) value, which is one of the indicators of soil microbial activity. As a result, the various factors noted above were related to the DHA value. Annual rainfall, soil Mg2+, bacterial and fungal diversities, types of crops, developmental stages, seasons, and cultivation status were highly correlated with the DHA value. Furthermore, next-generation sequencing (NGS) analysis was used to identify that the type of crop affected soil microbial compositions of both bacteria and fungi. Soil used for soybean cultivation showed the highest relative abundance for Verrucomicrobia, Planctomycetes, and Acidobacteria but Actinobacteria and Firmicutes had the lowest relative abundance. In the case of soil used for potato cultivation, Actinobacteria had the highest relative abundance but Proteobacteria had the lowest relative abundance. Armatimonadetes showed the highest relative abundance in soil used for cabbage cultivation. Among the fungal communities, Mortierellomycota had the highest relative abundance for soybean cultivation but the lowest relative abundance for cabbage cultivation; further, Rozellomycota, Chytridiomycota, and Cercozoa had the highest relative abundance for cabbage cultivation. Basidiomycota had the highest relative abundance for potato cultivation but the lowest relative abundance for soybean cultivation.

• 농촌지도와개발
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• 제25권1호
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• pp.45-56
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• 2018

This study analyzed the selection factors for cultivation practices in paddy rice farming. For the study, conjoint model with part-worth utility was adopted, where model profiles included three attributes of yield, production cost, and cultivation difficulties and two levels for each attribute. The value of each level was set up with experimental data obtained from National Institute of Crop Science. Ninety three rice farmers, who joined Korea Rural Economic Institute as farmer correspondences, were surveyed through internet with the profiles selected by factorial design. Result showed that rice farmers considered cultivation difficulties as the most important selection factor to adopt new cultivation practices followed by production cost and yield in consecutive order. This results were robust in spite of past experiences with new practices, willingness to adopt new practices in the future, imitative nature and government interventions.

• 한국버섯학회지
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• 제12권4호
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• pp.275-279
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• 2014

산느타리를 안정적으로 생산할 수 있는 배지를 개발하기 위하여 미루나무톱밥, 면실피, 면실박, 비트펄프, 콘코브 등 5종을 혼합하여 혼합비율별 6처리로 시험을 수행하여 배지조성별 화학성분, 균사생장속도 및 수량특성을 조사하였다. 배지조성별 화학성분 분석결과 pH는 대부분 pH 5.0 내외로서 큰 차이가 없었으나, V배지의 경우 다른 조성에 비하여 pH와 유기물 함량에 있어 각각 5.52, 29.07%로 높게 나타났다. 유기물대질소비는 IV배지가 30.53으로 가장 높았고, I, V, VI배지가 25정도를 나타냈으며, II, III배지는 20.68, 22.12로 낮은 값을 나타냈다. 시험관 칼럼배지를 이용해서 균사생장속도를 조사한 결과 균접종 28일 조사에서 향산 품종에서는 V배지가 105.0 mm로 가장 빠른 생장을 나타냈고, 호산 품종에서는 II번 배지가 114.3 mm로 가장 빨랐다. 병재배시 배지조성별 생육특성 조사결과 초발이소요일수는 3일, 생육일수는 4일로 모든 처리에서 동일하였고, 수량에 있어서는 호산품종의 경우 V배지가 병당 유효경수가 19.1개, 병당 수량이 198.4 g으로 가장 높은 수치를 나타냈으며, 향산 품종에서는 IV배지와 V배지가 각각 유효경수 15.3개, 14.4개, 수량은 161.1 g, 163.1 g으로 비슷하였다. 봉지재배에서 호산품종의 경우 초발이소요일수는 IV배지가 7일로서 가장 빨랐고 다음이 V, VI배지로서 8일, 그 다음이 I배지 9일 순이었다. 향산 품종에서 초발이소요일수는 I배지가 6일로서 가장 빨랐고 다음으로 IV, VI, V배지 순이었다. 그리고 생육일수는 4내지 5일로서 품종별, 배지조성별 차이가 없었다. 수량특성 조사결과 호산 품종의 경우 I배지가 봉지당 435.7 g으로 가장 높았고, 향산 품종에 있어서는 V배지가 463.5 g으로 높은 수량을 나타냈다.

• 한국버섯학회지
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• 제15권1호
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• pp.14-20
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• 2017

버섯의 단위면적당 생산량을 증대시키기 위하여 다단으로 재배되는 버섯재배사는 재배균상이 내부공기의 유동을 막는 장애물로 작용하여 균상의 아래쪽과 위쪽간의 환경차이가 발생한다. 이러한 환경차이 때문에 버섯재배 균상의 위치에 따른 생육차이가 발생한다. 본 연구에서와 같이 버섯재배사 내부에서 버섯이 생육되지 않는 작업통로의 상단에 천장방향으로 대류팬을 설치하여 운용하면 재배사 내부의 공기를 전체적으로 균일하게 유지할 수 있는 것으로 나타났다. 다만, 버섯재배사 내부에 설치된 각종 환경조절장치 즉 유니트쿨러, 입기팬, 배기팬, 대류팬, 가습기 등이 모두 한꺼번에 가동될 때는 버섯재배 균상위의 RMS 값이 속도 23.86%, 온도 6.08%, 습도 2.72%로 나타났다. 하지만 유니트쿨러와 대류팬이 가동될 때는 균상위의 RMS 값이 속도 23.54%, 온도 0.51%, 습도 0.41%로 나타났다. 따라서 버섯재배사의 환경조절을 위한 입기팬, 배기팬과 가습기는 용량이 큰 것을 설치하여 전체적인 가동시간을 줄이고, 유니트쿨러와 대류팬을 조합한 환경관리 방법이 내부 환경의 균일성 향상에 큰 도움이 될 것으로 판단된다.

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

• KIEAE Journal
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• 제13권2호
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• pp.61-66
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• 2013

This study is to eliminate the need for conventional high density plant factory's artificial light source such as LED to reduce the initial investment of the light source installation as well as the operation cost. Use of solar light could enhance the quality of the vegetables similar to those grown in the natural environment. Provision of solar light into the multilayer vegetable cultivation facilities and collecting maximum and sustainable sunlight without too much loss by tracing solar path and properly distributing it through careful control during daytime are crucial for realizing the investigated rooftop light shelf system for multi-layered vegetable cultivation. In this study, we developed an innovative way of effectively allocating sunlight inside even to otherwise shaded zone of a multi-layer vegetable cultivation facility. To prove the effectiveness of the system's sunlight collection and distribution capability, both simulation and experiment in Daejeon are performed and the outcome is analyzed.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.99-99
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• 2022

This study was carried out to select the excellent silage maize varieties customized for paddy cultivation that is vulnerable to lodging and waterlogging in the central and region. Ten varieties (Kwangpyeongok, P3394, etc.) were sown with 3 replicates in Suwon, Gyeonggi-do. It was sown twice in April and June of each year in 2020-2021 and harvested during the yellow ripe stage suitable for silage. The number of days to flowering stage in lowland condition increased up to 11 days compared to that in upland condition. In April seedling, varieties that showed a relatively small decrease in biomass production and total digestible nutrients (TDN) under lowland condition compared to upland condition were Gangdaok and Kwangpyeongok in 2020, and Dacheongok, Gangdaok and Kwangpyeongok in 2021. Kwangpyeongok, Gangdaok, and Sinhwangok showed relatively higher biomass production and TDN than the other varieties under lowland compared to upland in both 2020 and 2021. Our results suggest that Kwangpyeongok and Gangdaok are suitable silage maize varieties for lowland cultivation in the central region of Korea.

• Journal of Ginseng Research
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• 제14권2호
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• pp.297-309
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• 1990

Ginseng is renowned for both its medicinal and herbal uses and successful cultivation of Panax ginseng in Asia and Panax Vtiinvtiefolilim in North America has until recently taken place in the native geographical ranges of the plants. As a consequence of the potential high capital return and anticipated increases in consumer consumption, commercial cultivation of American ginseng now occurs well outside the native range of the plant in North America. In fact, the region of greatest expansion of cultivation is in the semi-arid interior region of British Columbia, Canada. Linked with this expansion is the potential domination of the ginseng industry by agricultural corporations. In the interior of British Columbia, the native decidous forest environment of eastern North America is simulated with elevated polypropylene shade and a sllrface covering of straw mulch. The architecture of these environments is designed to permit maximillm machinery useage and to minimize labour requirements. Further, with only a four-year growth cycle, plant densities in the gardens are high. In this hot, semiarid environment, producers believe they have a competitive advantage over other regions in North America because of the low precipitation rates. This helps to minimize atmospheric humidity such that the conditions for fungal disease development are reduced. If soil moisture levels become limited, supplemental water can be provided by irrigation. The nature of the radiation and energy balance regimes of the shade and much environment promotes high soil moistilre levels. Also, the modified environment reduces soil heating. This can result in an aerial environment for the plant that is stressful and a rooting zone environment that is sub-optimal. The challenge of further refining the man modified environment for enhanced plant growth and health still remains.