• 제목/요약/키워드: Cultivation Environment

검색결과 1,640건 처리시간 0.024초

Effects of Tillage and Cultivation Methods on Carbon Accumulation and Formation of Water-stable Aggregates at Different Soil Layer in Rice Paddy

  • Kim, Sukjin;Choi, Jong-Seo;Kang, Shingu;Park, Jeong-Hwa;Hong, Sunha;Kim, Tae-su;Yang, Woonho
    • 한국토양비료학회지
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    • 제50권6호
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    • pp.634-643
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    • 2017
  • No-tillage is an effective practice to save labor input and reduce methane emission from the paddy. Effects of tillage and cultivation methods on carbon accumulation and soil properties were investigated in the treatments of tillage-transplanting (T-T), tillage-wet hill seeding (T-WS), minimum tillage-dry seeding (MT-S) and no-tillage dry seeding (NT-S) of rice. Soil carbon was higher in NT-S and MT-S, compared to T-T and T-WS. In NT-S and MT-S, soil carbon contents were the highest in the top soil (5 cm depth) and decreased with soil depth. In T-T and T-WS, however soil carbon contents showed no significant difference up to soil depth of 15 cm from the top. Carbon content was the highest in the soil particle size under $106{\mu}m$ and decreased as the soil particle size increased. Contents of water-stable aggregates in NT-S and MT-S were higher than those of T-T and T-WS. In NT-S and MT-S, contents of water-stable aggregates were the highest in the top soil and significantly decreased with soil depth while no significant difference up to the soil depth of 15 cm in T-T and T-WS. Available $SiO_2$ contents in the top soil were the highest in NT-S and MT-S while the lowest in T-T and T-WS. It is concluded that minimum or no disturbance of soil in rice cultivation can increase carbon accumulation in the soil, especially in the top layer, and subsequently contribute to the formation of the water-stable soil aggregates.

농작물 재배 관리 효율성을 위한 Web 2.0 및 스마트폰 기반의 u-Farm 재배일지 관리 시스템 (A u-Farm Cultivation Diary Management System based on Web 2.0 and Smart-Phone for Agricultural Products Cultivation Efficiency)

  • 권용욱;정세훈;심춘보
    • 디지털산업정보학회논문지
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    • 제8권1호
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    • pp.17-27
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    • 2012
  • Most of the current cultivation log is recorded by growers manually or whose environment information is input based on the grower's own judgement. It is not easy for growers to record the image of disease and insect pests in the cultivation log. In this regards, u-Farm cultivation log management system based on Web 2.0 and smart phone is introduced in this paper, that is used for the effective cultivation management and grower's convenience. In the system, the value of environment information is transmitted to servers via sensors. It designs and implements Web 2.0 Flex so as to make the cultivation log more reliable and provide users with active, convenient GUI in case the log is recorded by desktop. In this process, detailed modules are designed by object-oriented UML considering the reusability and maintenance of the system. Moreover, the system introduced in this paper is proved to be more excellent by the qualitative assessment compared with the other researches.

산느타리버섯 원목재배 시 수종별 생육 및 수량특성 (Growth and yield characteristics according to tree species in the log cultivation of Pleurotus pulmonarius)

  • 이재홍;이남길;문윤기;정태성;권순배;박영학;김인종
    • 한국버섯학회지
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    • 제14권3호
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    • pp.105-110
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    • 2016
  • 산느타리버섯의 원목재배 시험결과 플라스틱 콘테이너 상자($50cm{\times}35cm{\times}30cm$)내에 토양매립하였을 경우 '향산' 품종에서는 원목당 수량이 340 g 정도로 톱밥종균 접종과 액체종균 접종에서 큰 차이가 없었고, '호산' 품종에서는 톱밥종균 접종이 원목당 450 g으로 수량이 높았으나 액체종균 접종은 259 g으로 낮게 나타났다. 원목을 비가림하우스내 토양에 매립하였을 경우 미루나무에 비해 가중나무의 수량이 높게 나타났고, 품종에 있어서는 '향산' 품종보다 '호산' 품종의 수량이 더 높게 나타났다. 산느타리버섯의 적정 수종 선발시험에서는 버드나무와 벚나무가 '호산' 품종 및 '향산' 품종 모두에서 수량이 높게 나타났다.

시설재배를 위한 지능정보시스템의 설계 (A Design of Intelligent Information System for Greenhouse Cultivation)

  • 오세종
    • 디지털융복합연구
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    • 제15권2호
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    • pp.183-190
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    • 2017
  • 최근 국내의 시설재배 면적과 시설규모가 증가하는 추세에 있으며 농업에서 차지하는 비중이 점차 커지고 있다. 이에 따라 복합 환경제어기의 설치 및 사용도 늘어나고 있다. 시설 및 장비의 현대화에도 불구하고 시설을 이용한 재배 기술은 아직 유럽 농업국가나 일본에 미치지 못하고 있는 실정이다. 본 연구에서는 ICT (Information & Communication Technology)기술을 활용하여 복합 환경제어기의 효과적인 운영을 지원할 수 있는 지능정보시스템의 설계를 제안하였다. 제안된 시스템은 복합 환경제어기의 데이터를 활용하여 시설 내 환경이 작물 생육에 최적 상태를 유지할 수 있도록 지원하며, 재배자에게 생육단계에 맞추어 영농정보를 능동적으로 제공한다. 또한 생육 모델을 활용하여 미래의 생육 상태를 예측하고, 영농목표 달성을 위한 환경제어 방향을 제시한다.

Actual State and Practical Use of a Factory-like Plant Production System in Japan

  • Tanaka, Isao
    • 한국생물환경조절학회:학술대회논문집
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    • 한국생물환경조절학회 1996년도 국제심포지움 21세기 첨단식물생산시스템의 실용화
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    • pp.63-73
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    • 1996
  • The importance of plant factory which blend agriculture and manufacture has been discussed widely. This company has researched hydroponics technique for cultivation which has been mainly developed in the sites of Okinawa and Hyougo Prefecture. In 1987, we stopped the previous research there, and started a new one far plant factory at the Agricultural Research Center of Chiba Prefecture. In 1989, we built four experimental plant factories (120㎡) at Chiba Oil Factory Refinery in Ichihara-city, developing techniques of cultivation, equipment production and environmental control for cultivation system of tomato, strawberry and leaf vegetables. (omitted)

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친환경농업 경영 여건에 대한 전남지역 친환경 농가의 인식조사 (A Survey on the Perception of Environment-friendly Farmers in Jeonnam Province on the Environment-friendly Agricultural Management)

  • 이춘수;송경환
    • 한국유기농업학회지
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    • 제28권4호
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    • pp.555-577
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    • 2020
  • This study analyzes the management performance and productivity of environmentfriendly farms compared to conventional farms and the trend of changes in price premium rates of environment-friendly agricultural products. And environmentfriendly farms in Jeollanam-do are surveyed for difficulties in management, proper premium rate of environment-friendly agricultural products (WTA), and tasks for promoting sales. According to the analysis results, the management performance and productivity of are low in many items, and the number of items that are on the decline or stagnant in the environment-friendly premium is making it difficult for farmers to manage. According to a farm survey, the most important task is to promote school meals for boosting sales of environment-friendly agricultural products. And 65.5% of the respondents having contract cultivation, nearly half or 41.1% of the respondents said they do not need contract cultivation or want contract cultivation for less than one year, which means that the current contract does not meet the needs of farmers. Finally, the environment-friendly premium rate based on consumer prices is generally lower than the premium rate (WTA) that farmers perceive as appropriate, so it is important to resolve the gap between the actual premium rate and the WTA.

여름철 일시차광이 절화장미 군락에 미치는 영향 (Effect of Temporary Shading on Cut Rose Canopy in Summer)

  • 전희;김진영;김현환;이시영;우영회;김완순;남윤일;김경제
    • 한국생물환경조절학회:학술대회논문집
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    • 한국생물환경조절학회 2001년도 가을 학술발표논문집
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    • pp.151-155
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    • 2001
  • 장미는 광포화점이 50,000 lux 이상으로 광요구도가 매우 큰 화훼작물이다. 따라서 유리와 같은 광투광율이 높은 자재를 피복한 온실에서 색도나 절화의 특성이 우수하여 품질이 향상된다. 그러나 온실에 유입되는 태양에너지가 매우 커서 계절에 따라서는 열집적현상이 나타나 고온과 일소현상과 같은 이유로 식물체가 스트레스를 받기도 한다. 이러한 현상은 장미를 재배하는 시설의 피복자재에 따라 차이가 매우 크다. (중략)

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The Adaptation of Ginseng Production of Semi-arid Environments The Example of British Columbia, Canada

  • Bailey, W.G.
    • 고려인삼학회:학술대회논문집
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    • 고려인삼학회 1990년도 Proceedings of International Symposium on Korean Ginseng, 1990, Seoul, Korea
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    • pp.155-167
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    • 1990
  • Ginseng Is renowned for both its medicinal and herbal uses and successful cultivation of Panax ginseng in Asia and Panax quinquefolium in North America has until recently taken place in the native geographical ranges of the plants. As a consequence of the potential high capital return and anticipated increases in consumer consumption, commercial cultivation of American ginseng now occurs well outside the native range of the plant in North America. In fact, the region of greatest expansion of cultivation is in the semi-arid interior region of British Columbia, Canada. Linked with this expansion is the potential domination of the ginseng industry by agricultural corporations. In the interior of British Columbia, the native deciduous forest environment of eastern North America is simulated with elevated polypropylene shade and a surface covering of straw mulch. The architecture of these environments is designed to permit maximum machinery usage and to minimize labor requirements. Further, with only a four- years growth cycle, plant densities in the gardens are high. In this hot, semi-arid environment, producers believe they have a competitive advantage over other regions in North America because of the low precipitation rates. This helps to minimize atmospheric humidity such that the conditions for fungal disease development are reduced. If soil moisture level become limited, supplemental water can be provided by irrigation. The nature of the radiation and energy balance regimes of the shade and many environments promotes high soil moisture levels. Also, the modified environment redlines soil heating. This can result in an aerial environment for the plant that is stressful and a rooting zone environment that is suloptimal. The challenge of further refining the man modified environment for enhanced plant growth and health still remains. Keywords Panax ginseng, Panax quinquefolium, cultivation, ginseng production.

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Geographic information system-based identification of suitable cultivation sites for wood-cultivated ginseng

  • Beon, Mu Sup;Park, Jun Ho;Kang, Hag Mo;Cho, Sung Jong;Kim, Hyun
    • Journal of Ginseng Research
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    • 제37권4호
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    • pp.491-495
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    • 2013
  • Wood-cultivated ginseng, including roots in its dried form, is produced in forest land without using artificial facilities such as light barriers. To identify suitable sites for the propagation of wood-cultivated ginseng, factor combination technique (FCT) and linear combination technique (LCT) were used with geographic information system and the results were superimposed onto an actual wood-cultivated ginseng plantation. The LCT more extensively searched for suitable sites of cultivation than that by the FCT; further, the LCT probed wide areas considering the predominance of precipitous mountains in Korea. In addition, the LCT showed the much higher degree of overlap with the actual cultivation sites; therefore, the LCT more comprehensively reflects the cultivator's intention for site selection. On the other hand, the inclusion of additional factors for the selection of suitable cultivation sites and experts' opinions may enhance the effectiveness and accuracy of the LCT for site application.