• 한국조경학회:학술대회논문집
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• 한국조경학회 1999년도 정기대회 및 학술논문발표회
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• pp.38-39
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• 1999

• 아시안잔디학회지
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• 제26권1호
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• pp.44-53
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• 2012

친환경적인 코스관리를 위해 가축분뇨액비를 활용하는 것은 매우 효과적인 방법이지만 시비 후 토양 및 주변수계에 미치는 영향에 대한 조사는 미흡하다. 가축분뇨액비(SCB)와 화학비료(CF)를 살포한 후 토양과 수질을 주기적으로 모니터링하여 골프코스의 환경에 미치는 영향을 평가하였다. SCB 액비의 시비는 화학비료 시비 때보다 골프코스의 토양오염은 나타나지 않았고, 유기물함량, 양이온치환용량 및 치환성 칼슘이 감소하였다(P<0.01). 주변 연못물의 모니터링에서 수질의 오염은 나타나지 않았으며, SCB가 시비된 주변연못의 pH와 질소함량이 감소하였다(P<0.01). 토양과 수질의 특성 조사에서 SCB의 시비는 토양 중 유기물과 양이온치환용량을 감소시키고, 수질의 SAR를 증가시킨다(P<0.01). SCB와 CF의 질소시비는 토양의 질소함량 변화와 상관성이 높으나(P<0.01), 수질에 미치는 영향은 적었다. 이러한 결과를 종합할 때, 골프코스에서 SCB의 시비는 토양과 수질의 오염은 나타나지 않으며, 토양의 유기물과 연못물의 pH가 감소되어 토양의 대취량과 연못물의 조류의 감소효과가 기대되었다.

• 아시안잔디학회지
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• 제13권2호
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• pp.79-90
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• 1999

This study was conducted to provide basic understandings for proper management of zoysiagrass fairways. Mowing intervals of 2, 4 and 6-days, with and without aeration were compared at two fertility levels. Turfgrass quality, growth and pest infestation were evaluated. Turf density, number of tillers, leaf width and resiliency were significantly affected by mowing frequency. Turfgrass plots mowed every 2-day had greater density, tillering, and resiliency but had narrower leaf width compared to other mowing treatments. Clipping dry weight with every 2-day mowing increased in the early stage of mowing treatment regardless of fertilizer application rates but gradually decreased in the later stage of mowing treatment compared to every 4 or 6-day mowings. The dry weight of above-ground part was not affected by mowing frequency, but that of underground part was significantly higher for every 6-day mowing frequency(3.3kg/day/m2) compared to every 2 or 4-day mowings. The organic mater content in soil was not different among mowing treatments but it was significantly reduced by the core aerification treatment, indicating significant effect of core aerification on thatch decomposition. Occurrences of weeds such as annual bluegrass and crabgrass according to mowing frequency were greater in every 2-day mowing treatment, while plots mowed every 6 days had less weed occurrence. Occurrence of rusts significantly increased in high fertility plots and frequently mowed turfgrasses.

• 아시안잔디학회지
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• 제13권2호
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• pp.91-100
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• 1999

School is the center for life of the students, 30% of Korean population. Students spend half of their daily life at school. However, amenity of school is not so good because school grounds in Korea are covered with soil while in USA and Europe with turf. This study was conducted to provide guidelines for constructing natural turf ground at school. 1. As of 1999, number of school grounds covered with turfgrass in Korea is only 130 out of 10,345. More turfs grounds should be constructed to improve amenity of school. Dept. of Education in Japan supports schools to establish turf grounds. 2. In Korea, only Zoysia japonica is used while in Japan several turfgrasses such as Zlysiagrass, bermudagrass and tall fescue are used. 3. In Korea and Japan, turfgrass at school is planted on soil based rootzone system resulting poor quality by heaby traffic. Recently in Japan, sand based rootzone systems such as Califonia and USGA systems are used at the schools with many students. 4. School turf both in Korea and Japan was managed by students and teachers. Turf quality of schools in Korea was not so good due to the poor management.

• Weed & Turfgrass Science
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• 제2권3호
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• pp.292-297
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• 2013

Winter turfgrass injury is one of the critical problems of many golf courses in Korea. Turfgrass loss from freezing injury due to low temperature leads to many types of damages including weed invasion, increased herbicide cost, increased soil erosion, and expensive re-establishment. Although Kentucky bluegrass (Poa pratensis L.) which is the most widely used among cool-season grasses in Korea is well known as cold tolerance species, freezing injuries to Kentucky bluegrass during winter are often found. Protecting the turfgrass crown is necessary to recover from low temperature stress in winter because shoots and roots can be recovered from the crown. Turf covers may protect the crowns from direct low temperatures and desiccation. Six different turf covers were installed to cover Kentucky bluegrass during a period of low temperatures. Turf covers had positive effects for spring green-up of Kentucky bluegrass based on the study. Applying any type of turf covers on Kentucky bluegrass resulted in an increase average and minimum temperature compared to the uncovered plot. Among turf covers, clear PVC film without holes produced the longest root length and the highest turfgrass quality.

• Weed & Turfgrass Science
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• 제7권1호
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• pp.62-71
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• 2018

본 연구는 부식산 함유 액비(LFH)의 시비에 따른 크리핑 벤트그래스의 생육과 품질의 변화를 확인하기 위해 잔디의 가시적 품질, 엽록소 함량, 예지물량, T/R ratio, 양분 함량 및 흡수량을 조사하였다. 처리구는 대조구(CF), LFH 1,000배 처리구(HF-1), LFH 500배 처리구(HF-2) 및 LFH 250배 처리구(HF-3)로 구분되었다. LFH 처리 전후에 토양화학성은 차이를 나타내지 않았다. LFH처리구와 대조구를 비교하였을 때, 가시적 품질과 뿌리 생육량은 LFH처리구에서 증가하였고, 엽록소 함량, 잔디 예지물, 질소 흡수량은 HF-2처리구와 HF-3처리구에서 각각 11.2-11.8%, 15.3-30.8%, 22-42%씩 증가하였다. LFH처리량에 따라 가시적 품질, 엽록소 함량, 잔디 예지물 및 양분 흡수량은 정의 상관성을 나타내었다. 이 결과들을 종합해 볼 때, 크리핑 벤트그래스에서 부식산 함유 액비의 시비는 잔디의 잎 조직 중 잔디지하부의 생육이 증가하여 양분 흡수를 개선함으로써 잔디품질과 생육이 증가하는 것을 확인 할 수 있었다.

• 아시안잔디학회지
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• 제17권2_3호
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• pp.87-97
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• 2003

The growth characteristics of creeping bentgrass seeded in the seaside landfill golf course are as follows. 1. As a result of analysis on the chemical characteristics of soil mixture used for turfgrass ground in this experiment, soil pH was 7.9, which is somewhat higher than the creeping bentgrass reference value of pH 5.5∼6.5; T-N(%) was 0.02, which is proper for the reference value, and trace element too lacked. 2. The cultivar with the fastest water infiltration was Seaside II recorded as 226.2cm/sec, while that with the slowest water infiltration was Pennlinks recorded as 141.1 cm/hr which was too faster than the USGA water infiltration reference value of 15∼30cm/hr. For the surface hardness of turfgrass ground with different cultivars, no statistically significant variation was found between the Penncross grass and the Pennlinks recorded as 18.6mm and 19.1 mm, respectively. The soil penetration was the highest in Pennlinks recorded as 7.6kg/$\textrm{cm}^2$ and lowest in Penn A-1 as 6.1kg/$\textrm{cm}^2$. 3. As a result of evaluation on visual quality at the early stage of growth, Penncross showed the most excellent visual quality compared to the others. However, Penn A-1 showed the most excellent visual quality at a late stage of growth around Sep. 17, 2003, and it was also excellent in the evaluation of visual color. Seaside II showed higher density around the root and the longest root length and was highly resistant to salt compared to others, but the initial sprouting rate was not satisfied, and the visual quality in the summer season was inferior to others. 4. As a result of measurement of the traffic injury, Penncross showed the most tolerant to the traffic stress and Pennlinks showed the most susceptible.

• 한국조경학회지
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• 제33권5호통권112호
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• pp.83-93
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• 2005

Research was initiated to investigate turf performance under USGA soil system. USGA system 45 centimeters deep was built with rootzone layer, intermediate layer, and drainage layer. Six turfgrass entries were comprised of 3 blends and 3 mixtures from cool-season grasses (CSG). Turfgrass color and quality ratings were best in spring and fall, especially early May to early July and late August to early November. Kentucky bluegrass (KB) consistently produced the greatest performance, while perennial ryegrass (PR) the poorest. Intermediate turf performance between KB and PR was observed with tall fescue (TF). Among CSG mixtures it increased with KB but decreased with PR. There were considerable variations in summer turf Performance. No summer drought injury was found in KB and TF. However, PR showed poor performance through summer as compared with others. Among mixtures, it decreased with PR. It was suggested that PR mix in less than $20\%$ in the mixtures to have an acceptable quality in summer. Cultural intensity also affected it. With lowering mowing height, KB of rhizomatous-type in growth habit kept good quality, while PR and TF with bunch-type in growth habit poor quality. Mowing quality was greatly different among CSG. KB produced clean-cut surface, but PR unclean one. If had an intermediate mowing quality between KB and PR. A great difference in green color retention was observed among CSG. The longest CSG was PR that kept green for 339 days, while the shortest one TF for 267 days. KB continued to keep green for 290 days. The mixtures kept green in color for 292 to 315 days, depending on turfgrass mixing intensity. The greater the PR in content, the longer the green color duration. These results demonstrate that KB was the best and PR the worst among CSG grown in USGA system under a domestic climate, in regards of turf quality, color, mowing quality, summer turf performance and green color duration. KB and TF are most adequate for high-maintenance and low-maintenance area, respectively. In case of mixtures for high-quality turf, it was desirable to use KB-based mixture with PR of below $20\%$ in seeding rate.

• 아시안잔디학회지
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• 제25권2호
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• pp.202-207
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• 2011

유기질비료(Organic fertilizer)는 천연유기질(Natural organic) 비료와 합성유기질(Synthetic organic) 비료로 구분이 된다(Christians, 2011). 천연유기질비료의 장점은 그동안의 선행 연구를 통해서 많이 보고되어왔다. 그러나 예지물을 이용한 시비효과에 대한 연구결과는 제한적이다. 본 연구는 예지물을 발효시켜 제조된 천연유기질비료로서의 액상비료가 putting green에 많이 사용되고 있는 Creeping bentgrass 생육에 미치는 영향을 알아보기 위해서 수행하였다. 액상비료는 Kentucky bluegrass로부터 수거된 예지물을 모아 부숙 과정 없이 미립자로 분쇄한 후 $28^{\circ}C$에서 약 2개월간 발효시킨 후 생성된 발효액에 유용미생물(Effective Microorganism, EM) 군으로 제조된 활성액을 3% 혼합하여 제조하였다. 잔디에 대한 각 질소의 시비효과는 National Turfgrass Evaluation Program (NTEP)에서 제시한 방법에 준하여 잔디의 품질을 시각적평가를 통해 매 2주마다 조사하였다(1=worst, 9=best, and 6=acceptable). LF와 NO와의 비교에서 고온기간인 8월 20일과 9월 3일에 각각 LF가 NO에 비해 더 좋은 품질을 보여주었다. Urea가 고온기간에 비료피해가 나타난 것에 비교하여 LF의 경우 고온기간동안 비료피해가 나타나지 않았다.

• 아시안잔디학회지
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• 제25권2호
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• pp.229-236
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• 2011

일본의 총 잔디재배면적은 6.623 ha로 이바라키현이 3,900 ha로 일본잔디재배면적의 약 58.9%를 차지하였고, 톳토리현이 779 ha로 11.8%를 차지하여 일본의 한국잔디 재배생산면적의 70% 이상을 차지하고 있었다. 일본에서 고품질 잔디뗏장 생산 및 유지를 위해 잔디 품질인증서 발급을 실시하고 있었으며, 품질관리 항목 중 이형초종을 집중적으로 관리하고 있었다. 또한 잔디 깎는 높이는 고라이시바 품종은 10 mm 내외, 노시바 품종은 25 mm 내외 이었으며, 잔디 뗏장 두께는 1.5 cm 정도로 생산하여 매우 고품질의 잔디를 생산하고 있었다. 잔디 운반비를 제외한 잔디 뗏장의 출하 단가는 300엔/$m^2$ 정도였으며, '쓰쿠바그린' 품종의 경우에는 600엔/$m^2$에 출하하고 있었다. 납품방식은 크게 3가지로 도매, 직판, 위탁형태로 출하되고 있었다. 잔디 품질 유지를 위한 잔디품질보증서는 품질등급기관인 쓰쿠바시 일본농업협동조합에서 주관하여 발급하고 있었으며, 3명의 평가위원을 구성하여 연간 3회 품질평가를 실시한 후 잔디품질보증서를 발급하고 있었다. 잔디밭의 균일도를 유지하기 위해 비선택적 제초제를 사용하여 잔디밭내에 혼입된 이형의 잔디 종(種)을 방제하고 있었으며, 잔디밭의 지력을 유지하기 위해 5-6년 단위로 배추와 윤작을 실시하여 잔디 뗏장 생산력을 유지하고 있었다. 이바라키현의 잔디브랜드화 추진을 위해 쓰쿠바 잔디사업협동조합내 쓰쿠바잔디진흥협의회에서 주관하여 '쓰쿠바히메', '쓰쿠바카가야키', '쓰쿠바타로우', '쓰쿠바그린' 등 4개 품종에 대한 특허 등록을 실시하여 쓰쿠바시를 대표하는 브랜드화를 추진하였다.