• Title/Summary/Keyword: 터널재배

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Horticulture in the Kimhae plain (金海平野의 園藝農業의 特性과 地域分化)

  • ;Huh, Wookung
    • Journal of the Korean Geographical Society
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    • v.9
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    • pp.43-53
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    • 1974
  • 이 글에서는 다음의 내용을 다루었다. 1. 김해평야의 원예농업의 성격, (1) 지역특화, (2) 운송원예지, (3) 시설원예지 2. 지역분화, (1) 원예시설의 종류, (2) 지역분화 3. 분화지별 사례연구, (1) 하우스 터널 다회작지(김해읍 어방3구), (2) 터널 다회작지(경락면 봉림리 통전), (3) 하우스 1회작지(주촌면 양동리 가속), (4) 파로지 재배지(오지면 동리 진동)

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Modelling Development and Environmental Analysis of Oriental Melon Greenhouse in SUNGJU(1) -Characteristics on distribution of air temperature for cultivating oriental melon in tunnel type greenhouse in Sungiu- (성주지역 참외전용 온실의 모델개발 및 환경분석(1) -성주 시설 참외단지 단동하우스의 온도 분포 특성-)

  • 송재관;박규식;구건효
    • Journal of Bio-Environment Control
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    • v.7 no.4
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    • pp.311-323
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    • 1998
  • This study was conducted to analyze the temperature characteristics under tunnel type greenhouse to cultivate watermelon in Sungju region. Air temperature of tunnel type greenhouse was descending rapidly after sunset, and the time required the air temperature inside greenhouse nearly reached the outside air temperature was about 2.5 hours. The maximum air temperature in tunnel type greenhouse, in case of high air temperature day, was exceeding 4$0^{\circ}C$ during day time. Air temperature inside greenhouse during night time could sustain about 2~3$^{\circ}C$ higher than the outside air temperature. But it was necessary to supply supplemental heat when the air temperature was below optimum growth temperature. Soil temperature in the depth of 20cm under soil surface could maintain higher than 2$0^{\circ}C$ and the variation range in a day was 3~5$^{\circ}C$, and the soil temperature descending due to irrigation was about 5~6$^{\circ}C$.

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Effects of Root-Knot Nematodes on the Growth and Yield of Oriental Melon (뿌리혹선충 밀도가 참외의 생육 및 수량에 미치는 영향)

  • 박동금;김동근;권준국;이재한;최영하;김회태
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 2000.10b
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    • pp.44-47
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    • 2000
  • 참외는 대부분 플라스틱하우스내에 소형터널을 설치하여 보온하는 형태로 재배되고 있으며, 연작하므로써 뿌리혹선충을 비롯한 각종 토양전염성 병해충의 피해가 많아지고 염류가 집적되는 등 재배상 많은 문제점이 발생되고 있다. 특히 참외를 장기재배하는 성주 등 경북지역에서는 뿌리혹선충으로 인해 생육이 불량하고(박 등, 1995a; 황 등 1999). 과실의 착과율이 떨어지는 등의 피해가 많이 발생되고 있다. (중략)

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Prediction of Ground Condition Changes Ahead of Tunnel Face Using Three-Dimensional Absolute Displacement Analysis (터널 3차원 절대변위 해석기법을 이용한 막장전방지반 예측)

  • Bang, Joon-Ho;Han, Il-Young
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.8 no.2
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    • pp.101-113
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    • 2006
  • Arching effect occurs around the unsupported excavation surface near to tunnel face when a tunnel is excavated in a stable rock mass. If a weak fracture zone exists in front of tunnel face, a displacement occurs between tunnel face and weak fracture zone due to stress concentration. If three-dimensional absolute coordinates (longitudinal, transverse, vertical direction) is measured at tunnel face by geodetic method, the ground change in front of the tunnel face can be predicted by analysing three-dimensional absolute displacement. The purpose of this study is to verify the analysis method of three-dimensional absolute displacement by comparing the trend of displacement ratio at crown and sidewall of tunnel and the influence line/trend line of crown settlement compared with TSP results in the same section.

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Round-frame-staking Cultivation Increased Growth and Yield of Oriental Melon(Cucumis melo L, var. Makuwa) (시설참외 터널지주 재배가 생육 및 수량에 미치는 영향)

  • 배수곤;최성국;신용습;연일권;최부술
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 1998.10a
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    • pp.77-81
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    • 1998
  • 참외는 일년생 작물로 손자덩굴에 과실이 착과되며 포복재배를 하고 있어, 덩굴의 과번무로 인한 채광과 통풍불량 및 고온으로 착과와 과실비대가 부진하여 품질이 저하되며 호흡량의 증가로 광합성율의 저하와, 각종 병해충 및 생리장해인 발효과 발생으로 많은 피해를 주고 있는 실정이다. 조 등(1997)은 관행적인 포복재배에 의존하고 있어 단위 면적당 수량 증수는 크게 기대할 수 없다고 하였으며, 최 등(1996)은 지주재배에서 과실의 당도가 높았으며 기형과와 발효과의 감소로 상품과 수량은 증수되었다고 보고하였으며, 함 등(1996)은 줄유인재배는 수량 증수는 가져왔으나 줄유인 및 관리에 많은 노동력이 소요되었다고 하였다. (중략)

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Influences of Tunnel Covering Materials and Seeding Dates on the Growth and Productivity of Water Spinach (Ipomoea aquatic F.) under Unheated Greenhouse (공심채 무가온 하우스 재배시 터널피복재와 파종시기에 따른 생육과 생산성 비교)

  • Uhm, Mi Jeong;Kwon, Sung Whan;Song, Young Ju
    • Journal of Bio-Environment Control
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    • v.23 no.4
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    • pp.349-355
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    • 2014
  • This study was performed to evaluate influences of tunnel covering materials and seeding dates on the growth and productivity of water spinach (Ipomoea aquatic F.) cultured early in unheated greenhouse. During tunnel installation period, from March 5 to April 30 and from October 11 to November 10, air and soil temperature in tunnel covered with polyethylene film (PEF) had risen $2.0-2.4^{\circ}C$ and $0.9-1.0^{\circ}C$, respectively, compared to those in non-tunnel (NT). Air and soil temperature in tunnel with illite non-fabric (INF) also had risen $1.6-1.8^{\circ}C$ and $0.6-0.8^{\circ}C$, respectively. Especially, it showed greater effects of the rise at low temperature time zones of the day. In plots of seeding on March 15 in tunnel covered with PEF or INF, temperature during emergence period, emergence days and rate were similar to plot seeding on April 5 in NT. There were two more harvesting in plots of seeding on March 5 or March 15 in tunnel, and increasing of total yield by 22.5-25.7% compared to plot of seeding on April 5 in NT. But there was observed no significant differences between PEF and INF. Whereas PEF was necessary to be removed at midday sometimes because it had risk of high temperature injury, INF was not necessary. All above suggest that it was suitable to sow seed on the middle of March in tunnel covered with INF, for early culture of water spinach in unheated greenhouse.

Effect of Soil Mulching after Green Manual Crops on Control of Common Scab and Yield Characteristics of Fall Potato (녹비작물재배후 플라스틱필름 멀칭에 따른 가을감자의 더뎅이병 방제 및 수량특성 변화)

  • 송창길;강봉균
    • Korean Journal of Organic Agriculture
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    • v.8 no.3
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    • pp.99-109
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    • 2000
  • This experiment was conducted to investigate the changes of rate of infected common scab and yield characteristics of fall potato(Solanum tuberosum L.) where green manual crops had been previously cultivated, crushed and tilled and P\ulcornerE transparent vinyl film had been mulched and tunneled to solar heating of soil from May 21. 1998 to July 28. 1998. The total yields of green manual crops which had been previousely cultivated were as followed order : pioneer 855F(64.3MT/ha), soybean(25.0MT/ha), red clover and orchardgrass. The average below-ground temperature at the depths of 5, 10 and 20cm were 54, 45 and 44$^{\circ}C$ during the mulching period, respectively The rate of infected area per potato tuber of common scab decreased by solar heating the soils with mulching after the soybean and red clover cultivation as with previous croppings. Plant height, SPAD(soil plant analysis development) reading, fresh weight of stems, and fall potato's tuber yields tended to increase by the cultivation of green manual crops and mulching of P\ulcornerE film. Fall potato's tuber yields were remarkably affected in the plot of soybean, red clover and pioneer 855F+cultivation of fall potato. T-N, K and Ca contents of fall potato(stem and tuber) also tended to increase by the cultivation of green manual crops and mulching of P\ulcornerE film. T-N, K and Ca contents of soil tended to increase after the cultivation of green manual crops and mulching of P\ulcornerE film and then reduced to contents of soil before green manual planting after potato harvesting.

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Effect of Covering Methods with Ventilating Non-Woven Fabric on the Growth and Yield in Leaf Lettuce during Low Temperature Season (통기성 간이 피복재의 피복방법이 저온기에 잎상추의 생육, 수량 및 품질에 미치는 영향)

  • 안종길;최영환
    • Journal of Bio-Environment Control
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    • v.11 no.2
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    • pp.88-92
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    • 2002
  • The study was conducted to estimate stimulation of plant growth of blue and red leaf lettuce (Lactuca sativa L.) as affected by covering methods with vinyl materials containing concentrated PO film. Plants were grown in direct, direct and tunnel, and tunnel covering with 'Pasraido materials' from October 13 to 31. With the covering mean air temperature, soil temperature, leaf temperature and relative humidity remarkedly increased. Higher temperature was observed in the order of direct and tunnel, direct, tunnel covering and the control. Photosynthetic photon flux (PPF, $\mu$mol m$^{-2}$ . s$^{-1}$ ) was observed in reverse order of temperature. Concentration of $CO_2$ was higher during night than during day under the light. Accumulation of highest $CO_2$ at night was obtained from direct coverings followed by direct and tunnel, tunnel covering and the control. Plant height, leaf number and leaf area of blue and red lettuces were stimulated by direct covering. However, there was no significant difference.

Effects of Seed Tuber Processing and Cultural methods on Tuber yield of Amorphophallus Konjac. K. (구약감자의 종서처리 및 재배방법이 수량에 미치는 영향)

  • 이희덕
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.37 no.2
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    • pp.117-122
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    • 1992
  • This experiment was conducted to determine tuber yield increase of Konjac by sowing time, seed tuber split method and cultural methods. Tuber yield per unit area was generally increased in early planting than conventional planting time. Tuber yield of polyethylene film mulching culture among storage methods was high, while the emergence rate of konjac for seedling plus PE mulching, and tunnel culture were prompted by 20 days, and especially seedling was to be greatly controlled due to temperature difference of the day and night at emergence. All of the cutting methods(two and four split method) were higher than conventional method because of increasing number of bulblet, accordingly, that method using seed tuber was profitable for mass propagation. Both botanical characteristics and tuber yield tend to be increased at 30 to 50 percent shading than natural condition.

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Development of Vacuum Nozzle Seeder for Cucuribitaceous Seeds - Performance Test of Seed Replenishing and Arraying Device - (박과종자용 진공노즐식 파종기 개발 - 종자보충.정렬장치의 성능시험 -)

  • 김동억;장유섭;김종구;김현환;이동현
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 2003.02a
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    • pp.418-422
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    • 2003
  • 농가에서는 재배하고 있는 과채류는 접목하지 않은 실생묘를 육묘하여 사용하거나 공정육묘장에서 실생묘 혹은 접목묘를 구입하여 사용하고 있으며, 특히 접목묘의 경우는 거의 대부분 공정육묘장에서 육묘된 모를 사용하고 있다. 수박, 오이, 참외의 박과채소는 연작장해의 피해를 줄이고 만할병을 방지하며 저온신장을 도모하기 위해서 접목재배를 많이 실시하고 있다. 또한 터널이나 노지 재배의 경우에는 접목을 하게되면 내습성을 높일 수 있다. 참외의 경우에는 세근이 많이 발달하지만 흡비력이 약하다. 그러나 대목으로 쓰이는 호박은 뿌리의 발달이 왕성할 뿐만 아니라 흡비력이 강하다. (중략)

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