• Journal of The Korean Society of Grassland and Forage Science
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• v.30 no.4
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• pp.317-324
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• 2010

Recently, fallow paddy land located in the mid-mountain area (FPL) due to a decrease in rice consumption has increased in some regions of our country. So, grasses and forage crops available for years in once sowing should be introduced in FPL. This study was conducted to develop the technique for cultivation of grasses and forage crops using animal manure in FPL The field experiments were carried out from 2007 to 2009 on FPL at Kumsan, Chungbuk province in Korea. Cattle feedlot manure (CFM) was prepared by mixing feces and urine of cattle with rice straw in cattle feedlot for 6 months. The experimental plots were consisted of four treatments; tall fescue-based mixed pasture applied with chemical fertilizer (Control), mono-tall fescue pasture (MTFP), tall fescue-based mixed pasture (TFBMP), mono-Perennial ryegrass (MPR-FCM), mono-Italian ryegrass (MIR-FCM), mono-Red clover (MRC-FCM) and mono-Reed canarygrass (MRCG-FCM) applied with FCM. The field of tall fescue-based pasture had been sown with a grasses mixture containing 'Fawn' tall fescue, 'potomac' orchardgrass, 'Reveille' Perennial ryegrass, and 'kenblue' Kentuky bluegrass, 'Kenland' Red clover. Seeding rates were 16, 6, 4, 2 and $2\;ha^{-1}$, respectively. DM yields of forages and rates of grass coverage was higher in MTFP, TFBMP and MRCG-FCM as compated with control treatment. This result means that FPL has contained with favorable conditions for growing grass, because forage productivity is more than 15 tons per ha per year in fallow paddy land. In addition, the farmer can save the trouble of repeated plowing and sowing every year, due to the introduction of perennial grasses. The farmer must conduct the re-seeding and induce the improvement of management methods for the elevation of the persistence of red clover and perennial ryegrass, because both red clover and perennial ryegrass having high nutritive value and palatability was less persistent. Therefore, we suggest that FPL may be the good land for forage production utilizing FCM and FCM can be applied on FPL without any negative effects on DM production and the property of soil. FPL of Korea can be better utilized by applying FCM to the mono and/or mixed swards.

• Journal of The Korean Society of Grassland and Forage Science
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• v.32 no.4
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• pp.411-418
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• 2012

This study was conducted to develop the technique for cultivation of forage crops using swine slurry in fallow paddy land located in the mid-mountain area (FPL). The field experiments were carried out from 2007 to 2009 on FPL at Kumsan, Chungbuk province in Korea. Swine slurry was prepared which decayed for 6 months. The experimental plots were consisted of seven treatments; tall fescue-based mixed pasture applied with chemical fertilizer (Control), mono-tall fescue pasture (MTF), tall fescue-based mixed pasture (TFBM), mono-Perennial ryegrass (MPR), mono-Italian ryegrass (MIR), mono-Red clover (MRC and mono), Reed canarygrass (MRCG) applied with swine slurry. The field of tall fescue-based pasture had been sown with a grasses mixture containing 'Fawn' tall fescue, 'potomac' orchardgrass, 'Reveille' Perennial ryegrass, and 'kenblue' Kentuky bluegrass, 'Kenland' Red clover. Seeding rates were 16, 6, 4, 2 and 2 (kg) per ha, respectively. DM yields of forages and rates of grass coverage were higher in MTF, TFBM and MRCG as compared with control treatment. This result means that FPL has contained with favorable conditions for growing grass, because forage productivity is more than 14.5 tons per ha per year in fallow paddy land. In addition, the farmer can save the trouble of repeated plowing and sowing every year, with the introduction of perennial grasses. The farmer must conduct the re-seeding and induce the improvement of management methods for the elevation of the persistence of red clover and perennial ryegrass, because both red clover and perennial ryegrass having high nutritive value and palatability was less persistent. Therefore, we suggest that FPL may be the good land for forage production utilizing swine slurry and swine slurry can be applied on FPL without any negative effects on DM production and the property of soil. FPL of Korea can be better utilized by applying swine slurry to the mono and/or mixed swards.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.35 no.6
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• pp.504-511
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• 1990

Weather data acquisition and potential evapotranspiration (PET) calculation procedure were investigated to support the agricultural development efforts in the mid-altitude mountainous region of Cheju Island. Automated weather stations (AWS) were installed at two points representing the east and the west of the study area. A personal computer was employed to collect the near-real time weather data from AWS through the public telephone line. Hourly data were available for solar radiation, air and soil temperature, relative humidity, wind speed and direction, and precipitation. Based on the data for the month of June 1989, daily climatic features were comparatively analyzed for the two areas and the Penman equation was used to calculate PET. Air temperature was higher by 1 to 2 degree C in the east due mainly to the higher solar radiation and partly to the Fohn effect caused by the daytime southwesterly blowing over Mt. Halla. Diurnal march of soil temperature lagged by 4 hours behind that of air temperature and the diurnal range for 10cm subsurface soil was 3 degree C. Wind was consistently stronger and a marked sea-land breeze circulation was detected in the west. Calculated PET values were higher in the east by 6% than in the west. Overall values from the east and the west of the mid-altitude mountainous region were higher by 30% than those of the coastal region, which were estimated from the Class A Pan evaporation measured by the Korea Meteorological Service Offices.

• Journal of Korean Medical classics
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• v.29 no.3
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• pp.81-99
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• 2016

Objectives : In this study, the meaning of Wuxing(五行) and Ganji(干支) in Suwenrushiyunqilunao (素問入式運氣論奧) and Wuxingdayi(五行大義) is reviewed to compare the interpretations of Wuxing and Ganzhi. Methods : The explanations of Wuxing, Sipgan(十干) and Sibiji(十二支) in the chapters of Suwenrushiyunqilunao and Wuxingdayi were studied to find different points of view. Results : Suwenrushiyunqilunao explained the meaning of Wuxing and Ganji using expression and metaphors of Yinyangwuxing(陰陽五行) theory while Suwenrushiyunqilunao describe their fragmentary characters. Also, Suwenrushiyunqilunao attached each one of Wuxing to substance(質), rule(理), shape(形), nature(性), righteousness(義). Conclusions : The differences of the explanations between the books point that there has been a deepening understanding of Yinyangwuxing and developments of Yunqixue(運氣學) in about 500 years from the publication of Wuxingdayi.

• Proceedings of the Korean Society of Crop Science Conference
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• 2005.04a
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• pp.122-123
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• 2005

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 2006.05a
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• pp.192-196
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• 2006

• 프린팅코리아
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• v.14 no.7
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• pp.74-87
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• 2014

최근 인터넷에서는 숫자 12의 비밀이 화제였다. 우리 일상생활에서 흔히 찾아볼 수 있는 숫자 12에 굉장히 많은 비밀이 있다는 것이다. 서양의 문화인 그리스 신화에 등장하는 신과 성경 속 예수의 제자는 각각 12명이다. 동양에는 12간지 12마리의 동물이 띠를 이룬다. 피아노의 건반은 한 옥타브가 12개의 반음으로 이뤄져 있다. 연필 한 다스에는 연필 12자루가 들어있고, 일반적인 축구공 한 개에는 12개의 정오각형이 들어 있다. 우리가 가장 많이 쓰는 컴퓨터 키보드는 F1부터 F12까지 12개의 기능키가 있다. 하루는 24시간으로 오전과 오후 12시간으로 나뉘며, 1년은 12개월이다.

• Proceedings of the Korean Society of Crop Science Conference
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• 1991.10a
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• pp.54-55
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• 1991

• Proceedings of the Korean Society of Crop Science Conference
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• 2021.10a
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• pp.83-83
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• 2021

• Proceedings of the Korean Society of Crop Science Conference
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• 2022.04a
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• pp.92-92
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• 2022