N:P2O5:K2O 시비비율이 잔디 잡초발생에 미치는 영향

박봉주,김세천 인간식물환경학회 2004 인간식물환경학회지 Vol.7 No.1

We reviewed the fertilization level and influence of fertilizer according to the ratio of N:P2O5:K2O in order to get basic data for the fertilization level to manage weeds in turf. When investigating the influence of fertilization levels, Zoysia japonica and Z. matrella in July and Z. matrella in October showed more weeds with an increase of the fertilization level, while Z. japonica, in October, showed less occurrence of weeds. Although Z. japonica did not show a significant difference between the 20g fertilization level and 60g fertilization level, Z. matrella showed a significant difference the 20g fertilization level and 60g fertilization level. From the result of the weed investigation in July, weed occurrence was different according to the ratio of N:P2O5:K2O. The most frequently occurring weed was Vicia angustifolia and Trifolium repens, belonging to Leguminous plants. In other words, weeds at this time were related with the growth of plants belonging to Legurninosae and depend on the composition ratio of 3 elements of fertilizer. Therefore, we recommend the fertilizer 5-2-2g of N, P2O5, K2O, respectively, per 1㎡ for overall fair growth of the turfgrass in order to control the occurrence of Leguminous plants, which are weeds in spring and summer.

잔디밤나방에 대한 난지형 잔디와 한지형 잔디의 내충성 평가

박봉주 한국조경학회 2003 韓國造景學會誌 Vol.31 No.4

The need for insect and mite resistant turfgrass cultivars arose because of problems associated with pesticide use. Representative cultivars and genotypes of 18 warm-season turfgrass [Zoysia japonica Steud., Z. japonica${\times}$Z. metrella hybrids, Z. japonica${\times}$Z. tenuifotia hybrids, Z. matrella (L.) Merr., Cynodon dactylon (L.) Pers., C. dactylon${\times}$C. transvallensis hybrids, Paspalum notatum Flugge., P. vaginatum Swartz., Stenotaphrum secundatum (Walt.) Kuntze, Eremochloa ophiuroides (Munro.) and Buchloe dactyloides (Nutt.) Engelm.] and 20 cool-season turfgrasses [Poa pratensis L., Festuca arundinacea Schreb., F. rubra L., F. rubra var. commutata Gaud., F. ovina var. duriuscula L. Koch. Agrostis tenuis Sibth., A. palustris Huds., and Latium perenne L.] were evaluated for host resistance to feeding by the Spodoptera depravata (Butler) in the laboratory. Two experiments were set up in the laboratory using 8.5cm diameter${\times}$4.0cm deep plastic petri dishes as larvae feeding chambers. In experiment 1, one neonate larvae were place on the grass in each dish and the dishes were arranged with 5 replicates each within an environmental chamber maintained at $25^{\circ}C$ and 15h light: 9h dark Larval survival and larval weights at 7d and 14d, pupal weights, and days to pupation were compared among turfgrasses. In Experiment 2, 4cm sections of all grasses were oriented equidistant from each other in a pattern resembling the spokes of a wheel. Five one neonate larvae were introduced to the center of each dish. Dishes were immediately placed in an environmental chamber held at $25^{\circ}C$, 15h light: 9h dark Larvae were allowed to feed for 24h. Damage was rated from 0(no damage) to 9(completely consumed) were made for eachturfgrass. Resistance as antibiosis (high mortality, slowed growth, and least preference) was identified in Z. japonica${\times}$Z. tenuifolia hybirids ‘Emerald’, Z. japonica${\times}$Z. metrella hybirds ‘Miyako’ and Eremochloa ophiuroides (Munro.). Cool-season turfgrasses tested were susceptible to feeding by Spodoptera depravata (Butler).

What Is Important in Selecting a Designated Hospital for the Korean Veterans with Hip Fractures?

박봉주,조홍만,최용석,서재웅 대한고관절학회 2017 Hip and Pelvis Vol.29 No.2

Purpose: The Korea Veterans Health Service (KVHS) implemented the ‘designated hospital system’ so that veterans can receive prompt medical attention at hospitals near their residences when experience medical emergencies, including hip fractures. We analyzed the hospital-selection process of Korean veterans following a hip fracture. We then evaluated (the validity and considerations) for choosing designated hospitals. Materials and Methods: The study population consisted of 183 veteran patients (84 treated at a single veterans hospital and the remaining 99 treated at 39 designated hospitals) who underwent hip fracture between January 2010 and February 2015 in the Honam region of South Korea. The subjects were divided into the ‘nearest group’ (those who chose the hospital closest to their residences) and the ‘non-nearest group’ (those who did not choose the hospital closest to their residences). We compared the age, ambulatory status, combined disease and fracture type, factors that we speculated may impact hospital choice. Results: Although the patients had difficulty moving due to hip fractures, 116 (63.4%) patients choose hospitals that were not closest to their residences. Patients with three or more comorbidities (P=0.028) and older ages (P=0.046) were statistically more likely to fall into the non-nearest group. Ambulatory status and fracture type were shown not to significantly impact choice between nearest and non-nearest hospital. Patients in the nonnearest group tended to seek care at larger hospitals. Conclusion: Korean veterans with hip fractures tended to seek care at larger hospitals, regardless of distance. We must therefore consider the number of beds and departments when choosing designated hospitals.

包山楚簡에 반영된 楚의 司法 제도

朴俸住 서울대학교 동양사학과 1997 서울大 東洋史學科 論集 Vol.21 No.-

타감작용에 의한 식생관리 방안에 관한 기초연구 : 잔디관리를 중심으로

서주환,김세천,淺野義人,박봉주 韓國植物·人間·環境學會 1998 인간식물환경학회지 Vol.1 No.2

본 연구는 난지형잔디에 의한 한지형잔디의 발아억제와 한지형잔디에 의한 잡초발생억제 등 일련의 타감작용에 의한 생태적인 잔디관리를 위한 기초자료를 제공하고자 실시되었다. turf관찰에서는 overseeding한 KB와 TF의 발아 개체수는 base의 나지형잔디에 의한 차가 거의 나타나지 않았으나, 들잔디의 KB overseeding에 있어서는 유의성이 관찰되었다. 1개체당 평균 건조중량은 base의 난지형잔디에 의한 차가 있었으며, 특히 센티피드그래스의 KB 및 TF overseeding구에서 가장 낮게 나타나 높은 생육 억제현상이 관찰되었다. 나지형잔디 5종류의 건조엽분말 50g을 이용한 pot실험에서 센티피드그래스구와 들잔디구 및 세인트어거스틴그래스구의 KB 및 TF의 발아율이 낮게 관찰돼 타감작용이 강한 것으로 나타났으며, 버뮤다그래스구와 버팔로그래스구는 양호한 발아율이 나타났다. 센티피드그래스 분말 (0, 25, 50, 75g)에 의한 KB, TF의 발아율 및 평균 건조중량을 조사한 결과 KB와 TF 발아율 및 평균 건조중량은 센티피드그래스의 건조분말이 증가할수록 감소하는 경향이 나타났다. The purpose of this study is to offer the basic materials for the ecological management of grass through allelopathy such as inhibition of cool-season turfgrasses germination by warm-season turfgrasses and retardation of weed by cool-season turfgrasses. In the observation of turf, the number of germinating Poa pratensis L. and Festuca arundinacea Schreb. was almost same but in the Poa pratensis L. overseeding, it showed significant difference. The dry weight of each individual was different by the kind of warm-season turfgrasses. Especially it is ascertained high in the Poa pratensis L.and Festuca arundinacea Schreb. overseeding of Eremochloa ophiuroides (Munro) Hack. so depression effect was showed. It was confirmed in the experiment by 50g, flour of five kinds of warm-season turfgrasses that allelopathy effected the germination percentage of Poa pratensis L. and Festuca arundinacea Schreb. slight in the plot of Eremochloa ophiuroides (Munro) Hack, Zoysia japonica Steud, Stenotaphrum secundatum (Walt) Kuntze. And the polt of Cymodon dactylon (L) Pers. and Buchloe dactyloides (Nutt.) Engeim. showed good germination. As a result of investigation of the germination percentage and the dry average weight of Poa pratensis L. and Festuca arundinacea Schreb. by Eremochloa ophiuroides (Munro) Hack. flour(0, 25, 50, 75g), the dry average weight and germination percentage of Poa pratensis L. and Festuca arundinacea Schreb. were reduced as much as Eremochloa ophiuroides (Munro) Hack. increased.

A Comparison of Internal Fixation and Bipolar Hemiarthroplasty for the Treatment of Reverse Oblique Intertrochanteric Femoral Fractures in Elderly Patients

박봉주,조홍만,민웅배 대한고관절학회 2015 Hip and Pelvis Vol.27 No.3

Purpose: To compare the clinical and radiological results between internal fixation using the proximal femoral nail system and bipolar hemiarthroplasty (BHA) in reverse oblique intertrochanteric hip fractures in elderly patients. Materials and Methods: From January 2005 to July 2012, we reviewed the medical records of 53 patients who had been treated surgically for reverse oblique intertrochanteric fracture and had been followed-up on for a minimum of two years. All patients were ≥70 years of age, and divided into two groups for retrospective evaluation. One group was treated with internal fixation using the proximal femoral nail system (31 cases), and the other group was treated with BHA (22 cases). Results: Early ambulation postoperatively and less pain at postoperative three month were significantly superior in the BHA group. However, by 24 months postoperatively, the internal fixation group exhibited higher Harris scores and correspondingly less pain than the BHA group. There were no significant differences in union rate, duration of hospitalization or lateral wall fracture healing between the two groups. Four patients in the internal fixation group underwent reoperation. Conclusion: In the treatment of intertrochanteric fracture of the reverse oblique type, open reduction and internal fixation should be considered to be the better choice for patients with good health and bone quality. However, in cases of severe comminition of fracture and poor bone quality, BHA is an alternative offering advantages including early ambulation, less pain at early stages, and a lower risk of reoperation.

天保 改革의 展開 과정과 性格

朴俸住 서울대학교 동양사학과 1995 서울大 東洋史學科 論集 Vol.19 No.-

In Vitro Antifungal Activity of Epigallocatechin 3-O-Gallate against Clinical Isolates of Dermatophytes

박봉주,박종철,Hideaki Taguchi,Katsuhiko Kamei,Tetsuhiro Matsuzawa,현성휴 연세대학교의과대학 2011 Yonsei medical journal Vol.52 No.3

Previously, we reported that epigallocatechin 3-O-gallate (EGCg) has growth-inhibitory effect on clinical isolates of Candida species. In this study, we investigated the antifungal activity of EGCg and antifungal agents against thirty-five of dermatophytes clinically isolated by the international guidelines (M38-A2). All isolates exhibited good susceptibility to EGCg (MIC_50, 2-4 μg/mL, MIC_90, 4-8 μg/mL, and geometric mean (GM) MICs, 3.36-4 μg/mL) than those of fluconazole (MIC_50, 2-16 μg/mL, MIC_90, 4-32 μg/mL, and GM MICs, 3.45-25.8 μg/mL) and flucytosin (MIC_50, MIC_90, and GM MICs, >64 μg/mL), although they were less susceptible to other antifungal agents, such as amphotericin B, itraconazole, and miconazole. These activities of EGCg were approximately 4-fold higher than those of fluconazole, and were 4 to 16-fold higher than flucytosin. This result indicates that EGCg can inhibit pathogenic dermatophyte species. Therefore, we suggest that EGCg may be effectively used solely as a possible agent or combined with other antifungal agents for antifungal therapy in dermatophytosis.

先秦 楚文化의 擴散 과정과 多元的 構造

朴俸住 동양사학회 1999 동양사학회 학술대회 발표논문집 Vol.1999 No.-

〈시〉 사모곡

박봉주 샘터사 1996 월간 샘터 Vol.27 No.10