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지정현,최병열,조광래,김순재,박경열,권오연 韓國作物學會 2013 한국작물학회지 Vol.58 No.1
벼 재배시 본답의 기비와 분얼비를 대체하여 묘판에 1회 시비하는 용출제어형 입상배합(Bulk Blending) 피복비료를시용 후 벼 생육과 수량, 품질, 경제성 등 완효성비료의 처리효과를 검토한 결과는 다음과 같다.1. 개발된 육묘상비료의 T-N용출량은 온도가 높을수록빨라졌고 온도에 관계 없이 분얼비 시용 시점인 14일경부터 높아져 21일경 최고에 달했다.2. 이앙 후 60일에서 질소흡수이용율은 표준시비 28.6%에 비하여 개발된 육묘상 비료가 높았으며 200 g시비구에서 73.1%, 300 g시비구에서 66.1%로 나타났다.3. 생육단계별(최고분얼기, 유슈형성기 등) 초장, 경수,SPAD값 생육상황은 개발된 육묘상비료 300 g/상자시비에서 표준과 대등하였다.4. 성숙기에도 간장, 수장, 단위면적당 수수는 개발된 육묘상비료 300 g/상자 이상 시비구에서 표준과 같거나많았다.5. 10a당 백미수량은 개발된 육묘상비료 시용량이 많을수록 증가하였다. 시비량별로 보면 표준시비 528 kg대비 개발된 육묘상 비료 300 g/상자 이상 시비구에서525∼552 kg으로 대등하거나 많았다.6. 백미 품질은 개발된 육묘상비료 시용량이 많을 수록 단백질함량은 증가하였으며 완전미율, 아밀로스함량,백도, 투명도는 비료량이 적을수록 증가하는 경향이었다.7. 따라서 표준시비량 이상의 수량과 품질 및 경제적인측면을 고려한 개발된 육묘상 비료의 적정 시비량은300 g/상자(실비. 9 kg/10 a)이었다.8. 시비량은 육묘상비료가 표준시비에 비해 49.3% 절감되었고, 시비노동력도 49.2% 절감되었다. The newly developed fertilizer is the slowreleasing fertilizer which can be used as a basal fertilizer without no additional fertilization at tillering stage. It has 30-4-6% of N-P2O5-K2O and was coated with mixture of LDPE (Low density polyethylene), EVA (Ethylene vinyl acetate), BDP (Bio degraded polymer), TALC and nonionic surfactant for the controlled release up to 50 days after application. Coating materials were designed to be decomposed naturally. This fertilizer can be applied directly to the seedling tray mechanically just before transplanting, resulting in significant labor saving effect. The developed slow-release fertilizer, which can replace both basal fertilization and top dressing at tillering stage by single application directly to seedling tray, showed the highest release at 14~21 days after transplanting. Considering the plant growth at different growth stages and yield, the optimal application rate of developed slow-release fertilizer was 300 g per rice nursery tray and the yield of rice at this application rate was 5.25 MT/ha. Rice quality in terms of head rice grain ratio, amylose content, whiteness, and taste value decreased as fertilization rate increased from 200 g to 500 g per nursery tray. Fertilization rate based on quantity of fertilizer ingredients (N, P, K) was reduced by 49.3% compared to the standard application rate and there was 49.2% reduction in labor input for fertilization.
느타리버섯 신품종 육성 연구 ( III ) - 병재배용 신품종『 흑백』느타리버섯 -
지정현,주영철,김영호 한국버섯학회 2004 한국버섯학회지 Vol.2 No.4
Hukbaek oyster mushroom were bred and cultivated one after mating spores from Aenutari 1-ho irradiated to X-ray and Byungnutari 1-ho. The major charateristics of the mushroom are showing that pileus is blackbrown and stems are pure-white and straight. The optimum temperature for the mycelial growth was around 25∼30℃ and that for the pinheading and growth of fruitbody was around 14∼16℃. Around 20 days at 20℃ were required for incubation time and the yield was shown high by 142.8g/bottle. When the cultivating temperature is over 17℃ the color of pileus becomes gray-brown.
느타리버섯 신품종 육성 연구 - 저온성 느타리버섯 신품종 『설안』-
지정현,최종인,주영철 한국버섯학회 2006 한국버섯학회지 Vol.4 No.2
Seolan, a new variety of oyster mushroom was developed by Mushroom Research Institute, Gyonggi Province Agricultural Research and Extension Services in 2005. It was bred with mating between monokaryotic strains isolated from KME35124 and F·X3. The major characteristics of the mushroom are showing a lot of pinheadings, the gray-colored and infundibuliform pileus. The optimum temperature for the mycelial growth was around 26∼30℃ and that for the pinheading and growth of fruitbody was around 10∼15℃. Incubation period was required around 25 days with bottle culture and about 23days in Poly Prophylene(P.P) plastic bag culture. The yield were shown high by 138.8g/bottle and 250.9g/P.P bag.
느타리버섯 신품종 육성 연구(I) : 병재배용 신품종『진미』느타리버섯의 특성
지정현,주영철,최종인 한국버섯학회 2004 한국버섯학회지 Vol.2 No.4
병재배 느타리버섯의 품종 다양화를 위해 단핵균주교잡에 의해 육성된 진미느타리버섯의 균사생장적온은 25∼30℃, 버섯발생 및 생육온도는 15±1℃이고 갓색은 회색이며 얕은깔대기형으로 발이수가 많았다. 배양일수는 20℃에서 22일, 초발이 소요일수는 4일이며 가늘고 긴형으로 농가실증시험에서 병당수량은 145.9g으로 높은 편이었다. 버섯의 갓색과 갓형태, 이형개체 발생,, 균사생장량, 종균배양기간 등에 대한 균일성도 양호하였고, 세균성 갈변병에 대한 저항성은 소정도로 나타났으나 푸른곰팡이병은 발생되지 않았다. 또한 균사 활력이 강하고 15 이하에서는 진한회색을 나타내며 육질이 부드럽고 대가 백색으로 깨끗한 직립형의 특성을 보유하고 있다. Jinmi oyster mushroom(Pleurotus ostreatus) were bred in Mushroom Research Institute, Gyonggi Province A.R.E.S in 2003. This oyster mushroom were bred and cultivated one after mating single spores collected from K3-2 and ASI2018-249. The major characteristics of the mushroom are showing a lot of pinheadings, the gray-colored and infundibuliform pileus. The optimum temperature for the mycelial growth was around 25∼30℃ and that for the pinheading and growth of fruitbody was around 15±1℃. Around 22 days at 20℃ were required for incubation of Jinmi and the yield was shown high by 145.9g/bottle.
느타리버섯 신품종 육성 연구( II ) - 병재배용 신품종『 소담』느타리버섯 -
지정현,주영철,김희동 한국버섯학회 2004 한국버섯학회지 Vol.2 No.4
Sodam oyster mushroom(Pleurotus ostreatus were bred in Mushroom Research Institute, Gyonggi Province A.R.E.S in 2002. Sodam oyster mushroom were bred and cultivated one after mating single spores collected from Aenutari 1-ho and Suhan 1-ho. The major characteristics of the mushroom are showing a lot of pinheadings, the graycolored and shallow cornhead-shaped pileus. Around 20 days at 20 were required for incubation of Sodam and the yield was shown high by 148.2g/bottle. As the activity of hypha is so strong, the proper time of pinheading is demanded.
큰양송이(Portobella) 재배법 개발에 관한 연구 II - 발이 및 생육온도 구명 -
지정현,이재홍,김희동,김영호 한국버섯학회 2004 한국버섯학회지 Vol.2 No.1
This study were conducted to investigate pin-heading induction and growing temperature of Agaricus brunescens. The temperature for fruit body formation was better at 15℃ than at 18 and 21℃. As the temperature go up to 21℃, the fruit body number was decreased but the fruit body size and weight was increased. Optimal temperature for both pin-heading and growth of Agaricus brunescens was 18℃.
파노라마방사선사진과 다면상재구성 CT상의 치조골 높이 계측에 대한 비교 연구
지정현,이상래,이병도 대한구강악안면방사선학회 2004 Imaging Science in Dentistry Vol.34 No.3
Purpose : To compare alveolar bony height of pantomograph with bony height of thin slice, multiplanar reformatted (MPR) Computed Tomograph. Materials and Methods : Panoramic radiograms of 12 young adult patients had been taken by one radologic technitian and the measurements were corrected by magnification ratio (1.20). The slice thickness of Multi-detector Computed Tomography (CT) was at least 1mm for the accuracy. The raw CT datas were imported into the V-works 4.0 (CyberMed Corp., Seoul, Korea) and transformed to MPR images. Pantomographic measurements of alveolar bone were compared to CT values by average mean bony height measurements for the accuracy. Inter-, and Intraobserver variability was evaluated. Results : There was no significant differences between height measurement of pantomography and that of CT (P>0.05). There were no significant differences in either inter- or intra-observer measurements (P>0.05). Conclusion : Pantomography showed relatively high accuracy and precision in measuring alveolar bony height.