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지속가능한 골프코스를 위한 친환경 잔디 관리 및 자원의 재활용 전략
김영선,이규승,이긍주 한국잔디학회 2019 Weed & Turfgrass Science Vol.8 No.2
As golf was popularized in Korea and its industry developed, superintendents had been taken an interest in managing eco-friendlily turfgrass in golf course and in recycling organic resources such as by-products or wastes that gotten to manage golf course. This study was conducted to review ecofriendly turfgrass management such as integrated nutrient management (INM), integrated pesticide management (IPM), and recycling resources for sustainable golf course. INM in turfgrass management could accomplish by applying slow release fertilizer, functional fertilizer and microbial fertilizer. Application of slow release fertilizer increased fertilizer efficiency and decreased N leaching, and of functional fertilizer or microbial was improved turfgrass growth and quality by prompting root growth and N uptake. Biocides like natural antifungal materials extracting from plant and antagonistic microorganism could apply to control insects or diseases and decrease to use insecticides or fungicides. Recycling resources as liquid fertilizer fermenting livestock manure, soldier fly coasts, turfgrass compost etc. could use to eco-friendly manage turfgrass. 골프가 대중화되고, 환경에 대한 관심이 증가하면서 골프코스의 친환경적인 잔디 관리와 잔디 관리 과정에서 발생하는 자원의 재활용에 대한 관심이 증가하고 있다. 지속가능한 골프장의 친환경적인 잔디 관리에 대해 검토한 결과, 시비 관리 시 완효성 비료는 비효 기간이 증가하고 토양 중 비료 유효도가 증가하여 잔디의 양분 이용율이 개선되고, 용탈이 감소되었다. 기능성 비료나 미생물 비료는 잔디 뿌리 생육과 질소 흡수를 촉진하여 잔디의 생육과 품질을 향상시켰다. 친환경적인 병해충 관리를 위해서는 식물추출물이나 길항성 미생물과 같은 생물농약을 이용하여 병해충 방제에 이용하되 농약과 혼합살포하거나 교호살포 시 방제 효과가 증가한다. 또한 가축분뇨 발효액비, 동애등에 분변토 및 잔디 예지물의 발효물 등을 재활용하여 잔디 재배에 이용할 수 있을 것으로 기대되었다.
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업무상 컴퓨터 사용 정도가 작업관련 불건강 증상 경험 여부 및 회수에 미치는 영향 분석
김영선,이경용 대한안전경영과학회 2014 대한안전경영과학회지 Vol.16 No.3
Employees used computer significantly(IT employee) is increased by technological development in workplace. This study tried to find the magnitude of IT employees and the profile of their working conditions and ill health experiences in South Korea. Korean Working Conditions Survey was used with descriptive and mean difference test in order to find the difference working conditions and ill health status among the groups classified by the degree of using computer during work. Some of working conditions was positively correlated with the density of computer use such as work autonomy, the exposure of repetitive movement of hand and arms. The pain of upper extreme was also more frequently found in the highest user group of computer than lower user groups. Based on the result of hierarchical regression analysis, the effect of computer using on the experience of work-related symptoms after controlling other factors was shown as U shape. This study as heuristic one suggest that some of depth analysis with hypothesis will be done to identify the causes and pathway of impact of computer use.
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완효성질소성분이 함유된 복합비료의 시비가 토양 중 질소함량 변화 및 켄터키블루그래스 생육에 미치는 영향
김영선,김택수,함선규,방수원,이창은 한국잔디학회 2009 Weed & Turfgrass Science Vol.23 No.1
This study was conducted to investigate the effect of compound fertilizer contained slow release nitrogen such as isobutylidene diurea(IBDU) and methylene urea(MU) on kentucky bluegrasss and the change of nitrogen in the root zone after supplying these at AM turfgrass research institute with soil analysis, chlorophyll content index, leaf area index and dry weight during 6 months from July to December in 2007 year. Fertilizer treatments were designed as following; non-fertilizer(NF), straight fertilizer(CF), methylene urea(MU), isobutylidene diurea(IBDU). The every treatments were arranged a randomized complete block with three replications. Results obtained were summarized as follows: As relative to time after N fertilizers application, ammonium and nitrate in soil were increased, but T-N was decrease. The change of ratio of available N and T-N by elapsed time after fertilizing was decreased in CF from 30days but increased until 45days. Compared with NF, the turf color index in CF, MU and IBDU was increased 1.5%, 2.5% and 2.3%, respectively, the chlorophyll content 16%, 25% and 26%, the dry weight 31%, 62% and 46% and shoot number 104%, 185% and 148%. The chlorophyll content index of MU and IBDU was increased 7.5% and 8.8% than that of CF, shoot number 40% and 22%, and dry weight 24% and 12% but turf color index was similar to that of CF. These results showed that the MU and IBDU application was supplied nitrogen for a long time in root zone by increasing an available nitrogen, and so promote turfgrass growth such as chlorophyll content and shoot number in kentucky bluegrass. 본 연구는 완효성 질소 성분이 함유된 복합 비료의 시비가 켄터키블루그래스 생육과 토양 중 변화에 미치는 영향을 시험하고자 2007년 7월부터 12월까지 6개월간 수행하였다. 처리 구는 비료를 처리하지 않은 무처리구(NF), 속 효성질소복합비료(11-5-7)를 처리한 대조구 (CF), MU 질소성분이 함유된 복합비료를 처 리한 MU 처리구(MU), IBDU 질소성분이 함 유된 복합비료를 처리한 IBDU 처리구(IBDU) 등 4개 처리를 난괴법으로 수행하였다. 시비 후 속효성질소성분과 완효성질소성분 의 경과시간에 따른 토양 중 변화와 엽색지수 와 엽록소함량과 같은 잔디품질과 잔디 생육 량, 잔디밀도 등 잔디 생육을 조사하였고, 그 결과를 요약하면 아래와 같다. 암모니아태 질소와 질산태질소는 모든 처리 구에서 시비 후 시간이 경과함에 따라 점차 증가하나 총질소는 점차 감소하는 경향을 보 였고, 질소질 비료 시비 후 30일까지는 속효 성비료의 가용성 질소가 많았으나 시비 후 30 일 이후에는 완효성 비료처리구에서 가용성 질소 비율이 증가하였다. 엽색지수와 엽록소함량을 NF와 비교한 결 과, 엽색지수는 CF, MU 및 IBDU에서 각각 1.4%, 2.5%, 2.3% 증가하였고, 엽록소함량은 16%, 25%, 26% 증가하여 MU와 IBDU 처 리구에서 높게 나타났다. 잔디생육량과 잔디밀도 조사에서 잔디생육 량은 CF, MU 및 IBDU가 NF보다 각각 31%, 62%, 46% 각각 높았고, 잔디밀도는 104%, 185%, 148% 증가하였으며, 속효성비 료처리구(CF)보다 완효성비료처리구(MU, IBDU)에서 잔디생육량 및 잔디밀도가 증가했 다. 본 결과들을 통해 완효성 질소 함유비료는 속효성 질소에 비해 토양 중 가용성 질소의 함량을 높여 질소비효기간을 연장시키고, 엽색 지수, 엽록소함량 및 잔디밀도를 향상시켜 잔 디생육에 효과적이었다.
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김영선,김진호,박문규,유홍균,오준환,최종욱 대한후두음성언어의학회 2000 대한후두음성언어의학회지 Vol.11 No.1
Microscopic surgery of the larynx normally have a low recurrence rate. However, once they do recur, it is uneasy to manage recurrent diseases. Recurrence is often the result of inappropriate postoperative care and voice management. Out of the 764 patients operated for benign inflammatory laryngeal diseases, we have conducted a clinical analysis of 54 cases who have had at least one episode of recurrence after the initial treatment with laryngomicrosurgery (7.1% of recurrence rate). High risk groups for recurrence were determined, and they were related to cigarette smoking, alcohol intake, laryngopharyngeal reflux. From our experience and literature review, we conclude that pre- and postoperative patient education concerning these risk factors and voice usage Is of critical need to prevent recurrence of inflammatory laryngeal lesions after laryngomicrosurgery.
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