• Journal of Korea Society of Digital Industry and Information Management
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• v.8 no.1
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• pp.17-27
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• 2012

Most of the current cultivation log is recorded by growers manually or whose environment information is input based on the grower's own judgement. It is not easy for growers to record the image of disease and insect pests in the cultivation log. In this regards, u-Farm cultivation log management system based on Web 2.0 and smart phone is introduced in this paper, that is used for the effective cultivation management and grower's convenience. In the system, the value of environment information is transmitted to servers via sensors. It designs and implements Web 2.0 Flex so as to make the cultivation log more reliable and provide users with active, convenient GUI in case the log is recorded by desktop. In this process, detailed modules are designed by object-oriented UML considering the reusability and maintenance of the system. Moreover, the system introduced in this paper is proved to be more excellent by the qualitative assessment compared with the other researches.

• Journal of Mushroom
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• v.5 no.3_4
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• pp.91-97
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• 2007

Shiitake mushroom (Lentinula edodes) is usually cultivated on the oak log. Log cultivation of this mushroom is getting difficult to get oak logs and has a weak point of its long cultivation period. Recently sawdust cultivation is getting increase. It is important to make mycelia browning on the substrate surface. This browned surface in sawdust cultivation plays an important role like as artificial bark of the oak log, which protects the other pests and suppresses water evaporation in the substrate. The period for mycelia browning is so long that the sawdust cultivation of Shiitake mushroom can not spread well into the mushroom farms. The development of methods for the rapid mycelia browning is quite required. In this article we would like to discuss about the enzymatic activities related mycelia browning and search the methods of cultivation period reduction.

• Journal of Practical Agriculture & Fisheries Research
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• v.5 no.1
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• pp.8-12
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• 2003

The optimal log conditions of cultivation are as follows. 1) Log-length, 100~120cm 2) Hole-depth, 1~1.5cm 3) It takes 55~67 days for primodia induction is possible to harvest fruiting bodies for 6~7 months. Meanwhile, the total of 10 species pest including Trichoderma sp. occurred during the cultivation.

• Journal of Mushroom
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• v.16 no.4
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• pp.342-346
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• 2018

The temperature and humidity of 49 greenhouses for oak mushroom cultivation were investigated for 5 years to analyze the trends in the change of these parameters according to the climate change in Korea. The 5-year average temperature and humidity were $24.7^{\circ}C$ and 60.5%, respectively, in sawdust media-based cultivation houses and $24.4^{\circ}C$ and 60.0%, respectively, in log-bed cultivation houses. The average temperature in the summer was $29.8^{\circ}C$ in 2016, $29.1^{\circ}C$ in 2017, and $33.3^{\circ}C$ in 2018 in the log-bed cultivation houses and $26.8^{\circ}C$ in 2016, $20.4^{\circ}C$ in 2017, and $24.2^{\circ}C$ in 2018 in the sawdust media-based cultivation houses. During the investigation, temperatures over $30^{\circ}C$ were detected in one cultivation house in spring and five such houses in summer. When classifying by cultivation type, temperatures over $30^{\circ}C$ were found in five log-bed cultivation houses and temperatures less than $20^{\circ}C$ were found in four log-bed cultivation houses in fall. This study shows that log-bed cultivation houses for oak mushroom need to be modified to cope with the climate change.

• Journal of the Korean Wood Science and Technology
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• v.33 no.3 s.131
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• pp.79-88
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• 2005

This research studied the utilization of the bed log wastes as a papermaking grade pulp. Five different bed log samples from shiitake mushroom (Lentinus edodes (Berk.) Sing) cultivation were collected by the cultivating periods of 1 to 5 years. The wood chemical composition and the characteristics of kraft pulping of each sample were investigated. The results of chemical composition showed that the rate of carbohydrate (glucose and xylose) content in sapwood was decreased as the cultivation period was increased. In heartwood, there was no significant difference. The screening yield of non-cultivated bed log from kraft pulping was higher than that of cultivated one, but the reject of cultivated one, especially for 5 year-cultivated, was lower than non-cultivated bed log. The fiber length and width was continuously decreased as the cultivation period was increased. Therefore, the freeness of the pulp from the cultivated bed log was sharply decreased comparing to non-cultivated due to the fiber cutting and the increased fine content. The dry strengths were increased according to the increasing addition level of bed log kraft pulp to KOCC and non-cultivated wood pulp. From the overall results, the pulp from 5 years cultivated bed log can be reasonably used if it is mixed with long fiber pulp for advantages such as reducing beating time.

• Mycobiology
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• v.36 no.2
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• pp.81-87
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• 2008

The optimal conditions for mycelial growth of Phellinus linteus ATCC 26710 were determined to be a log length of 20 cm, temperature of $30^{\circ}C$ and pH of 6.0. Mycelial growth was excellent on the mushroom complete medium, and was optimal when sucrose, man nose and glucose were supplied as carbon sources. Potassium nitrate and sodium nitrate as nitrogen sources supported good mycelial growth. To evaluate P. linteus mycelial colonization on logs, sterilized short log inoculation, drilling inoculation and log-end sandwich inoculation techniques were used. Only sterilized short log inoculation produced good mycelial colonization. Initial mycelial growth and full mycelial colonization were best on 20 cm logs having 42% moisture content. The initial mycelial growth of P. linteus was accelerated over 12hr of sterilization. Basidiocarp formation was optimal using a burying method of logs after $5{\sim}6$ months, and fruiting body formation was superior in cultivation house conditions of $31{\sim}35^{\circ}C$ and in excess of 96% relative humidity.

• The Korean Journal of Mycology
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• v.36 no.1
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• pp.98-100
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• 2008

A birch fungus, Piptoporus betulinus, is judged the mushroom with economical value that produces the fruiting body on Betula trees, but the mushroom rarely occurs in Korean birch forest. So, the fungus was applied to log cultivation for the production of fruiting body on Betula davurica. The fungus produce the fruiting bodies in the early August of the next year after inoculation in April and its mushroom matured in October. The mushroom produced 212 g to 1,298 g fresh weight in one or two mushrooms per a log. Thus, it is considered that log cultivation of the fungus has a potential to mass production of fruiting body and is expected to introduce to more researches to develop the use of this mushroom.

• Journal of Mushroom
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• v.14 no.3
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• pp.105-110
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• 2016

This study was carried out to develop techniques for the log cultivation of Pleurotus pulmonarius. Soil landfill cultivation of the in plastic container boxes containing yield per log than but there was no difference in the yield from both spawn Hyangsan" variety. In the case of soil landfill cultivation in a shaded vinyl house, an Ailanthus tree gave a higher yield than that using poplar tree, and the yield of the Hosan" variety was higher than that of the Hyangsan" variety. With regard to proper tree species selection, willow and cherry trees were good for both the Hosan" and "Hyangsan" variet.

• Journal of Mushroom
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• v.13 no.3
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• pp.185-191
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• 2015

This research was carried out to determine the differences of physiological activites between Grifola frondosa of log cultivation(LC) and Grifola frondosa of bottle cultivation(BC). Total flavonoids content, total phenolics content, electron donating ability(EDA), nitrite-scavenging ability(NSA), SOD-like activity and inhibitory effect of Xanthine oxidase were examined. The highest value of total flavonoid content is $5.96{\pm}0.81mg/g$ in water extract from Grifola frondosa of log cultivation at $40^{\circ}C$ (LC-W40) but, one of total phenolics compound is $44.53{\pm}0.89mg/g$ in water extract from Grifola frondosa of bottle cultivation at $40^{\circ}{\cdots}$ (BC-W40). The EDA using DPPH of BC-W40 extract showed the highest value of $97.14{\pm}0.71%$. Nitrite-scavenging ability was $62.55^{\circ}{\ae}0.36%$ in extract from Grifola frondosa of BC-W40 at pH 1.2. The value was SOD-like activity showed the highest value of $18.95^{\circ}{\ae}1.39%$ in extract from LC-W40. Xanthine oxidase inhibitory activity was the highest value of $54.31{\pm}0.40%$ in extract from Grifola frondosa BC-W40, and dependent on concentrations. These results showed that a the antioxidant effects of Grifola frondosa is excellent. However, physiological activities of Grifola frondosa were not depend on caltivation method regulary, and were different according to kind of solvents, concentraitions and physialogical factors examined such as EDA, SOD-like activity and NSA.

• Journal of Food Hygiene and Safety
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• v.33 no.1
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• pp.31-37
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• 2018

This study was conducted to evaluate the microbiological safety of leafy vegetables (perilla leaf and lettuce) in relation to cultivation methods. A total of 2,304 samples were collected from plants, harvesting tools and soil mulching film during the production and harvest stages from organic- and conventional- farms. From the samples, sanitary indicator microorganisms (total aerobic bacteria, coliforms, E. coli., Environmental Listeria, and yeast and mold) and pathogenic microorganisms (S. aureus, B. cereus, Salmonella spp., Clostridium spp., and L. monocytogenes) were analyzed. In the production stage of leafy vegetables, the sanitary indicator microorganisms was not detected regardless of cultivation method or it was detected to be less than $3.4\;Log\;CFU/100cm^2$. B. cereus and S. aureus were found to be 0.22~1.55 Log CFU/g in perilla leaf and lettuce produced by organic farms, and S. aureus was not detected and B. cereus was found to be 0.42~2.19 Log CFU/g in conventional farms. There were no significant differences between two cultivation methods. In the harvesting tools and soil mulching film, the contamination levels of sanitary indicator microorganisms and pathogenic microorganisms was low regardless of the cultivation method. However, there was a positive correlation ($R^2=0.4526$) in that the higher the microbial contamination level in the harvesting tool, the higher the microbial contamination on the surface of the plant. In addition, sanitary indicator microorganisms and pathogenic microorganisms were not detected or low in soil mulching during the production of organic leafy vegetables. As a result of this study, microbial hygiene control by soil mulching and harvesting tools was more important than difference of cultivation method in production of leafy vegetables.