• Proceedings of the Turfgrass Society of Korea Conference
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• 2004.12a
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• pp.89-110
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• 2004

• Journal of the Korea Organic Resources Recycling Association
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• v.10 no.2
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• pp.140-146
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• 2002

본 시험은 채종유박과 미강유박을 주원료로 하고 질소, 인산, 칼리의 함량이 7.23%이고 중금속이 거의 없이 개발된 유기질비료(크럼블-80)를 공시비료로 기비와 추비시비 방식의 포장시험을 통하여 토양과 한국잔디의 생육에 미치는 영향과 시비효율을 구명하여 올바른 시비방법 및 시비량을 제시하고자 2000년 4월부터 12월까지 경기도 용인시 소재 태광컨트리클럽 증식포(기비시험)와 경기도 파주시 소재 서서울컨트리클럽 10홀 티(추비시험)에서 실시하였다. 기비시험 결과, 엽록소 측정결과의 처리효과는 무처리구가 100일 때 관행구 117%, 관행구+크럼블-80 $150g/m^2$ 123%, 크럼블-80 $150g/m^2$ 115%, 크럼블-80 $300g/m^2$ 119%, 크럼블-80 $75g/m^2$ 102%로 효과가 있는 것으로 나타났다. 유기질비료인 크럼블-80은 시비량에 따라 엽록소 함량이 약간 증가되었으나 NPK와 혼합처리구에서 가장 높은 것은 공시비료의 단독처리보다는 복합비료와 혼용하는 것이 더 효과적인 것으로 나타났다. 추비시험 결과, 잔디생육기간 중 잔디건물중을 조사한 결과는 크럼블-80의 시용량이 많을수록 잔디건물중도 증가하였으며, 처리구에 따라 무처리구보다 5~45(%) 정도의 증수효과가 있는 것으로 나타났다. 그러나 엽록소함량은 처리구가 무처리구보다는 높았으나 골프코스에 필요한 녹색유지에는 부족하므로 화학비료와의 혼용시비가 필요하다고 판단된다. 본 시험결과로 볼 때 시험에 사용된 공시비료는 골프코스 잔디관리에 적합한 비료로 판단된다. 시험결과를 토대로 한 권장시비량은 기비시비의 경우 잔디식재 전에 공시비료 $300g/m^2$를 표토 10cm와 잘 혼합하여 시비하되, 추비시비는 공시비료와 화학비료와의 혼용시비가 필요하다고 판단된다.

• Korean Journal of Weed Science
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• v.32 no.3
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• pp.174-179
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• 2012

The majority of turfgrass composition of golf courses are zoysiagrass, and mingle with cool-season turfgrasses have been increased. As result of mingling the species, invading problem has been raised. In this study, 50 golf courses nationwide were surveyed of grass composition and invading problem with hetero-species of turfgrasses. Among the courses, 47 golf courses have invading problem with more than one species at least. The invading problem has been issued most of golf course in nationwide. Thirty-seven courses composited with zoysiagrass; at 25 courses showed creeping bentgrass invading and at 33 courses were invaded by kentucky bluegrass. Among 47 kentucky bluegrass composition courses, 43 courses had creeping bentgrass invading problem. Invading problem within the grass species (creeping bentgrass in zoysiagrass, kentucky bluegrass in zoysiagrass, creeping bentgrass in kentucky bluegrass); 14, 12, and 21 courses were detected single species, two species, and three species invading problem, respectively.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.3 no.1
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• pp.5-9
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• 2002

The paper describes a golf score management system that aids golfers in improving their abilities of playing golf. The main purpose of this system is to help golfers manage their golf scores in a more systematic way. The system consists of three main modules. a golf course management module, a golf score management module, and a golf course creation module. With this system. golfers can not only record their scores but also perform a scientific analysis. Through the results obtained from the analysis, golfers can identify and fix their weak points so that they can improve their playing abilities.

• Asian Journal of Turfgrass Science
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• v.23 no.1
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• pp.123-132
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• 2009

This study was designed to investigate the effect of the late fall fertilization applied with methyl urea(MU), compound chemical fertilizer(CF), humate(HM), and organic compost fertilizer(NS) on spring greenup of creeping bentgrass at following year. The plots were treated with various snow cover periods before transforming to ski slopes from golf holes during 2007 fall to 2008 spring. The highest visual quality and greenup rate were shown on MU or HM applications at 10 days before snow cover treatment. The CF treatment which had a highest phosphorus rate was most effective with a 13 cm of root length at the reconversion date to golf hole from ski slope of the following spring. However, the application of CF followed by immediate snow cover showed the worst results on visual quality and green color caused by a leaf burning damage from the residual effect of CF. At least 10 days were required to avoid phytotoxicant from undissolved granular of CF before snow cover practise. The application of NS showed the highest result on leaf dry weight at no snow cover plot in next spring, but not on green color and visual quality. Therefore, the proper interval period of snow cover after late fall fertilization should be an important management skill on the spring greenup of creeping bentgrass on following year transforming from ski slope to golf hole.

• Asian Journal of Turfgrass Science
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• v.19 no.2
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• pp.185-190
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• 2005

• Asian Journal of Turfgrass Science
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• v.19 no.2
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• pp.177-183
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• 2005

• Proceedings of the Turfgrass Society of Korea Conference
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• 2005.04a
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• pp.7-12
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• 2005

• Asian Journal of Turfgrass Science
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• v.26 no.1
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• pp.44-53
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• 2012

As SCB liquid fertilizer (SCB) produced from or out of livestock manure by slurry composting and biofiltration process was applied in golf course, the effect on soil properties and water quality was little investigated. This study was conducted to evaluate the effect of the SCB liquid fertilizer application on environment by monitoring chemical property of soil and water quality of pond as applied chemical fertilizer (CF) and SCB. SCB application rarely contaminated the soil and pond in golf course and decreased organic matter, CEC and Ca in soil and pH and T-N for water quality of pond. In correlation coefficient between soil property parameters, water quality parameters and water quality items, SCB applied in golf course decreased organic matter and CEC in soil and increased SAR in water quality (P<0.01). Nitrogen applied in golf course with SCB or CF was significantly related to T-N in the soil (P<0.01), but not significantly related to T-N in the pond water. These results showed that SCB application little contaminated soil and pond in golf course, and was expected to control of thatch in soil and algae in pond.

• Journal of Industrial Convergence
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• v.19 no.1
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• pp.71-77
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• 2021

Screen Golf provides a more realistic interface to users by implementing sophisticated sensors and 3D graphics so that they can play golf in an environment almost identical to the actual golf course, to provide a sense of reality that goes beyond simply enjoying golf indoors. In addition, users who experienced this interface environment showed a tendency to feel the fun of golf more and become more immersed in golf. Therefore, it is most important to provide an effective realistic interface in screen golf. In this study, the meaning of screen golf as a tangible sport and various interface elements embodied in screen golf were summarized. Also the factors that enable users to feel reality and fun of actual golf to make users more immersed in screen golf were identified. For this, interface elements based on sensory elements were arranged in terms of visual, auditory, and tactile sense, and improvement plans and directions for providing effective sensory interfaces for screen golf were suggested through user FGI, targeting regular customers of Golfzone and KakaoVX screen golf, and in-depth interviews with experts. As a result of the analysis, it was confirmed that the course information including the yardage and the play situation-directed graphic are elements that make immersion in the visual aspect. In terms of tactile aspect, the fact that users actually use golf equipment, as well as the sense of existence of a physical interface that embodies various course environments and course setting appeared to be an important factor. In particular, in the auditory aspect, it was confirmed that providing customized services for each user through AI caddy implemented to resemble a actual caddy is the most effective way to immerse users in screen golf with greater fun and realism.