세미나 : 사회체육행정의 실제와 전망 - 사회체육시설 관련 정책의 방향 -

조광민 한국사회체육학회 1993 한국사회체육학회 학술세미나 Vol.4 No.-

가축분뇨 액비 시용이 보리의 항산화활성에 끼치는 영향

조광민,이상복,이정준,조상균,박태일,김기종,임상종,전재철 한국잡초학회 2011 한국잡초학회 별책(학술대회 초록집) Vol.31 No.1

녹비작물 파종량별 생육차이와 잡초발생량 비교

조광민,이상복,양창휴,백남현,정재혁,이경보,전재철 한국잡초학회 2012 한국잡초학회 별책(학술대회 초록집) Vol.32 No.1

보리 품종별 초기 생육 시 셀레늄 흡수차이

조광민,김동진,최인배,이상복,박기훈 한국잡초학회 2012 한국잡초학회 별책(학술대회 초록집) Vol.32 No.1

가축분뇨 액비 시용이 국산밀 품종별 수량 및 사료가치에 미치는 영향

조광민,이상복,강천식,백남현,양창휘,이경보,박기훈,허무룡,박철수 경상대학교 농업생명과학연구원 2013 농업생명과학연구 Vol.47 No.6

The purpose of this experiment is to investigate the effect of the liquid-pig-manure(LM) on the growth and yield of Korean wheat and the possibility of consumption diversification of Korean wheat produce through the analysis of feed value. The growth and feed value of Korean wheat cultivars were compared with Youngyang barley that is used for whole-crop-barley as control. Fifteen days after sowing, the seedling emergence rate in the LM treatment plot showed 2.4 times as high as that in chemical fertilizer(CF) or in non-treatment plot. In addition, plant heights have increased two times or more in both crops of LM fertilizer plots. At the maximum tiller number stage after wintering, the plant lengths of the wheats were shorter by 0.7∼1.8cm, than that of Youngyang barley, but the tiller number was more by 1.5∼2. The fresh weights of all wheats used in the experiment after harvest in a LM treatment plots tended to be 1.01∼1.11 times higher than that of Youngyang barley, that of Yeonbaek wheat being highest as 5,102kg 10a-1. Regarding feed value, protein contents were increased in barley and all wheat cultivars by LM treatments, being highest in Jokyung wheat as 9.19%. Both NDF and ADF were equivalent to or higher than those of whole-crop-barley. TDN was highest in Keumkang wheat as 69.86∼72.11%, and lowest in Goso wheat as 64.61∼66.07%. Soil analysis before and after the experiment showed that the LM treatment increased the contents of EC, organic matter, available phosphorus, and exchangeable cations, which are the same result as the CF treatment. The results above demonstrated that the appropriate use of LM in cultivation of Korean wheat will reduce the production cost, and the supply of surplus wheat produce as feed grains use will be helpful in stabilizing the costs and consumption of the Korean wheat. 국산밀 재배시 가축분뇨 액비를 시용하여 생육에 미치는 영향과 사료가치를 분석하여 우리밀 생산물의 소비다양화 가능성을 알아보기 위하여 본 실험을 수행하였다. 용도별 우리밀을 선발하고 총체보리로 사용되고 있는 영양보리를 대조구로 파종하여 생육 및 사료가치를 조사하였다. 각 작물별 파종 15일후 유묘출현율은 액비 처리구 화학비료 및 무처리구에 비해 2.4배 높았다. 또한 시험작물 모두 초장이 액비시용구에서 약 2배 이상 증가하였다. 월동 후 최고분얼기에는 밀이 영양보리에 비해 초장은 0.7∼1.8 cm 작았으나 분얼수는 1.5∼2개가 많았다. 생체중의 경우 액비처리구에서 시험에 사용된 모든 밀이 영양보리에 비해 1.01∼1.11배 높았고 연백밀이 5,102kg 10a-1로 가장 많았다. 사료가치중 단백질 함량은 액비처리로 보리와 모든 밀 품종에서 유의성있게 증가하였고 조경밀이 9.19 %로 가장 높았다. NDF와 ADF 모두 청보리와 대등하거나 높았다. TDN은 금강밀이 69.86∼72.11 %로 가장 높았고 고소밀이 64.61∼66.07 %로 가장 낮았다. 시험전후 토양 특성은 가축분뇨 액비처리를 하였을 때 EC, 유기물, 유효인산 및 치환성 양이 함량이 증가하여 화학비료와 대등한 결과를 얻었다. 이상의 결과로 국산밀을 재배할 때 가축분뇨액비를 적절히 활용할 경우 재배단가를 낮추고 곡물밀의 공급이 과잉일 경우 사료용으로 공급하여 국산밀의 소비안정성에 도움을 줄 수 있을 것으로 판단된다.

청보리와 유채 혼파 비율에 따른 수량성 및 사료가치

조광민,신상현,김경훈,박철수,허무룡,우선희,박종철 경상대학교 농업생명과학연구원 2013 농업생명과학연구 Vol.47 No.6

To develop barley and rape mixed-sowing cultivation technology for extension of whole crop forage production, we investigated the appropriate mixing rate and the harvest stage. The highest growth and yield were obtained when the seeding rate of barley 80% and rape 20% was carried out. Total dry-mass yield increased 11% in this treatment and protein content increased about 0.3∼0.6% in mixed treatments comparing to barley single seeding. In qualitative analysis of silage, also barley 90% or 80% and rape 10% or 20% mixed seeding were better than barley single seeding condition. Three barley maturing stages, milky, dough and yellow ripe, were tested to find out proper harvest time to increase the yield and forage quality in case of barley and rape mixed cultivation condition, Barley and rape culm length was higher in dough stage than other milky and yellow ripe stages. The dry-mass yield was better in dough and yellow ripe stages and it was same both barley and rape. The yield was dramatically decreased in milky stage. In feed value examination, protein content was higher in milky and yellow ripe stages than dough stage, however, TDN was better in dough stage. These growth, yield and feed value results were same both treatments barley 80%/70% and rape 20%/30% conditions. 혼파 비율에 따른 청보리와 유채의 생육을 조사한 결과 청보리와 유채를 8:2 비율로 처리했을때 생육과 수량성이 우수하였다. 생체중은 청보리 단파에 비해 청보리와 유채 8:2 비율에서 11%로서 가장 높은 증수율을 나타내었다. 청보리와 유채 혼파에 따른 사일리지 제조 전 사료가치를 분석한 결과 조단백질 함량은 청보리 단파에서 6.0%를 보였으나 혼파 처리에서는 단파에 비해 0.5∼0.7% 증가하는 결과를 보였다. 10a 당 가소화 양분 총량(TDN)을 조사한 결과 청보리 단파의 678kg/10a에 비해 9:1과 8:2 처리에서 725∼728kg으로 단파와 다른 혼파처리에 비해서 사료가치가 우수한 결과를 나타내었다. 사일리지 제조 후의 혼파 비율에 따른 사료가치 조사에서도 상대적 사료가치(RFV)가 단파에 비해 101∼102로 9:1과 8:2 처리에서 가장 높은 것으로 나타났다. 청보리와 유채 수확시기별 생육과 수량성을 8:2와 7:3 혼합비율로 청보리 유숙기, 호숙기와 황숙기에 각각 조사하였다. 수확기별 청보리는 건물수량성에서 호숙기에 10a당 약 1.3톤으로 가장 많았다. 유채는 청보리 유숙기와 호숙기에 각각 10a당 약 264kg과 244kg이었고, 건물중은 청보리와 유채 모두 청보리의 호숙기와 황숙기에 4.9kg와 4.4kg으로 비슷하였다. 수확시기에 따른 품질분석을 수행한 결과, 조단백질 함량은 유숙기와 황숙기에 7.4∼7.7%로 우수하였다. TDN은 호숙기에 71.4%로 유숙기와 황숙기의 약 68∼70%에 비해 우수하였다. 다른 혼파비율인 7:3에서도 같은 경향을 나타내었다. 혼파시 호숙기경의 수확이 품질에서도 양호한 결과를 보여 청보리는 호숙기에 수확하는 것이 가장 유리할 것으로 생각된다.

열처리 분위기에 따른 비정질 IGZO박막트랜지스터의 특성 연구

조광민,성상윤,김세윤,이준형,김정주,허영우 한국표면공학회 2010 한국표면공학회 학술발표회 초록집 Vol.2010 No.11

돈분뇨 액비 시용이 사료맥류 초기생육 및 잡초발생량에 미치는 영향

조광민,이상복,이정준,조상균,박태일,김기종,임상종,전재철 한국잡초학회 2011 한국잡초학회 별책(학술대회 초록집) Vol.31 No.1

초고속 무선 LAN을 위한 Priority Oriented Dobule Reservation 프로토콜

조광민,정상일,강철신 한국통신학회 1997 韓國通信學會論文誌 Vol.22 No.1

In this paper we designed a high speed wireless multiple access protocol, which is suitable for future multimedia wireless LAN systems which support high quality video teleconferencing, telephony and graphic databases. In the proposed protocol, Slotted-ALOHA protocol is used for transmitting random data packets and the packet reservation multiple access(PRMA) protocol for transmitting periodic data packets. The use of minislot is introduced for the reservation scheme. In order to measure the performance characteristic of the proposed protocol, a simulator is designed using an object oriented programming language, C++, and an exhaustive simulation study is carried out. From the simulation results, it is observed that the proposed protocol and the existing PRMA protocol have almost the same delay characteristic when network traffic is low. However, the proposed protocol is superior to the PRMA protocol when traffic becomes higher. The proposed protocol and the results can be utilized for the design of the wireless access systems and future broadband wireless LANs.

Isolation, Screening, and Molecular Identification of Streptomyces sp. W-200 and Its Bioherbicidal Activity in Weed Control

조광민,신승철,Aung Bo Bo,UMURZOKOV MIRJALOL,WeiQiang Jia,박기웅,최정섭,김영숙 한국잔디학회 2022 Weed & Turfgrass Science Vol.11 No.3

A total of 332 bacterial strains were isolated and screened for bioherbicidal activity. The three isolates namely W12, W-177, and W-200 were found to be efficient in suppressing Digitaria ciliaris by 88.3, 89.67, and 95.5% as compared with untreated control. Among them, the isolate W-200 caused severe injury to the growth of D. ciliaris, eventually leading to plant death. Phylogenetic analysis of 16S rRNA sequencing determined that the isolate W-200 was 99% similar to Streptomyces formicae (1H-GS9). Streptomyces strain W-200 was tested on D. ciliaris through soil and foliage applications. There was a progressive reduction in the growth of D. ciliaris in both applications. Optimization of bacterial culture conditions showed that Streptomyces strain W-200 was intense bioherbicidal activity and high cell mass at 25℃, 150 rpm, and initial pH 7. The herbicidal activity against D. ciliaris in light conditions was slightly higher than that in dark conditions. The chlorophyll content decreased by 96, 65, and 61% after treatment with paraquat, Streptomyces strain W-200, and glufosinate-ammonium, respectively at x1 recommended concentration. Electrolyte leakage increased gradually with time until 24 hours after treatment of Streptomyces strain W-200. These results suggested that Streptomyces strain W-200 producing herbicidal activity may be a new bioherbicide candidate. A total of 332 bacterial strains were isolated and screened for bioherbicidal activity. The three isolates namely W12, W-177, and W-200 were found to be efficient in suppressing Digitaria ciliaris by 88.3, 89.67, and 95.5% as compared with untreated control. Among them, the isolate W-200 caused severe injury to the growth of D. ciliaris, eventually leading to plant death. Phylogenetic analysis of 16S rRNA sequencing determined that the isolate W-200 was 99% similar to Streptomyces formicae (1H-GS9). Streptomyces strain W-200 was tested on D. ciliaris through soil and foliage applications. There was a progressive reduction in the growth of D. ciliaris in both applications. Optimization of bacterial culture conditions showed that Streptomyces strain W-200 was intense bioherbicidal activity and high cell mass at 25℃, 150 rpm, and initial pH 7. The herbicidal activity against D. ciliaris in light conditions was slightly higher than that in dark conditions. The chlorophyll content decreased by 96, 65, and 61% after treatment with paraquat, Streptomyces strain W-200, and glufosinate-ammonium, respectively at x1 recommended concentration. Electrolyte leakage increased gradually with time until 24 hours after treatment of Streptomyces strain W-200. These results suggested that Streptomyces strain W-200 producing herbicidal activity may be a new bioherbicide candidate.