http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
밭 토양에서 규산질비료 시용이 토양 환경에 미치는 영향
주진호 ( J. H. Joo ),이승빈 ( S. B. Lee ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2011 강원 농업생명환경연구 Vol.23 No.4
Application of silicate fertilizers is typically practiced to amend soil quality and improve rice productivity at the paddy field in Korea, and their effects are well-established. However, a little research on the effect of silicate fertilizers on soil and crop growth in upland soil was reported. Most of silicate fertilizers applied in Korea is slag-originated silicate fertilizer. Some water soluble silicate fertilizers are manufactured and commercially available. The objective of this study was to assess changes of soil chemical properties in potato-grown plots by applying slag-originated silicate fertilizer and water soluble silicate fertilizer. Field experiment was conducted on a silt loam paddy soil, where four levels of each silicate fertilizer were applied in soil at the rate of 0, 1, 2, 4 times of the recommended levels. Application of slag-originated silicate fertilizer increased soil pH, while no significant pH increase was occurred with the treatment of water soluble silicate fertilizers. Soil pH increased proportionally as slag-originated silicate fertilizer was applied. Available SiO2 contents also increased with the treatment of slag-originated silicate fertilizer. Exchangeable Ca, Mg and available phosphate contents in soil increased with application of slag-originated silicate fertilizer, while no significant increases for exchangeable Ca, Mg and available phosphate contents were shown with the application of soluble silicate fertilizer. Throughout this study, soil application of slag-originated silicate fertilizer enhanced soil chemical properties, while water soluble silicate fertilizer application in soil needs further study to better understand application method, application rate, type of water soluble silicate fertilizer, etc.
유재홍 ( J H Yoo ),심명용 ( M Y Shim ),이전규 ( J K Lee ),이영돈 ( Y D Lee ),주진호 ( J H Joo ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2015 강원 농업생명환경연구 Vol.27 No.3
Organic agriculture is holistic production management systems which promote and enhance agro ecosystem health, including biodiversity, biological cycles, and soil biological activity. The Codex guidelines have been prepared for the purpose of providing an agreed approach for the requirements which underpin production of the labelling and claims for, organically produced foods. These guidelines set out the principles of organic production at farm, preparation, storage, transport, labelling and marketing stages, and provides an indication of accepted permitted inputs for soil fertilizing and conditioning, plant pest and disease control and, food additives and processing aids. Any substances used in an organic farming system for soil fertilization and conditioning, pest and disease control should comply with the relevant national regulations. The permitted substances for organic agriculture according to Environmental friendly Agriculture Promotion Act in Korea are 43 substances for use in soil fertilizing and conditioning and 42 substances for plant pest and disease control.
상토 소독방법에 따른 재사용 상토에서의 묘삼생육특성 및 미생물상 변화
이광재 ( K J Lee ),정혜정 ( H J Jung ),정햇님 ( H N Jeong ),김성일 ( S I Kim ),안문섭 ( M S Ahn ),주진호 ( J H Joo ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2015 강원 농업생명환경연구 Vol.27 No.1
묘삼 안정생산 및 비용절감을 위한 상토 재활용 가능성을 확인하고자 토양훈증제와 고압멸균법을 이용하여 상토를 소독 후, 소독방법에 따른 묘삼 재배 시 상토내 미생물상 변화와 묘삼 생육특성을 비교하였다. 엽장, 엽폭, 근장 및 근경 등 묘삼 생육특성은 증기 및 약제소독 처리구에서 무처리구에 비해 우수한 것으로 나타났으며, 상토 소독처리에 의해 잘록병 및 근부병 발생이 감소함을 확인하였다. 묘삼 재배 전후의 상토 내 미생물상 조사 결과, 세균류는 처리구간에 큰 차이를 나타내지 않았으나, 진균류와 피시움균은 소독 처리한 상 토에서 묘삼 재배 후 각각 0.3 ± 0.2×103 CFU/g medium, 1.6 ± 0.1×103 CFU/g medium 및 0.7 ± 0.1×103 CFU/g medium, 2.4 ± 0.3×103 CFU/g medium으로 조사되었으며, 이는 묘삼 모잘록병 및 근부병 발생율이 무처리구에 비해 낮은 시험결과와 일치하였다. 실험 결과와 같이, 증기 또는 약제를 이용한 상토 소독을 통해 상토 구입비용 절감 및 토양병원균에 의한 인삼 연작피해 경감에 도움이 될 것으로 사료된다. This study was carried out to develop the reuse method of ginseng seedling medium for safe production of ginseng seedling and saving cost. The leaf length, leaf diameter, root length and root diameter of ginseng seedling at the medium sterilized by steam or dazomet were superior to control group. Moreover, disease incidences of damping-off and root rot were decreased at sterilized medium than control, and the densities of fungus and pythium sp. after cultivation of ginseng seedling at the medium sterilized by steam or dazomet were 0.3 ± 0.2×103 CFU/g medium, 1.6 ± 0.1×103 CFU/g medium and 0.7 ± 0.1×103 CFU/g medium, 2.4 ± 0.3×103 CFU/g medium, respectively. These results suggested that sterilization of medium using by steam or chemical could be used as proper method for reuse of ginseng seedling medium.
하홍수,김호겸,고락길,김호섭,송규정,박찬,유상임,주진호,문승현,Ha H. S,Kim H. K,Ko R. K,Kim H. S,Song K. J,Park C,Yoo S. I,Joo J. H,Moon S. H 한국초전도학회 2004 Progress in superconductivity Vol.6 No.1
Ni alloy tape is electropolished to be used as a metal substrate for fabrication of IBAD (ion-Beam Assisted Deposition)-MgO texture template fur HTS coated conductor. Electropolishing is needed to obtain a very smooth surface of Ni alloy tape because the in-plane texture of templates is sensitive to the roughness of metal substrate. The critical current of YBCO coated conductor depends on the texture of YBCO that depends on the texture of the IBAD MgO layer. And so the smoothness of the metal substrate is directly related to the superconducting properties of the coated conductor. In this study, we have prepared a reel-to-reel electropolishing apparatus to polish the Ni alloy tapes for IBAD. Various electropolishing conditions were investigated to improve the surface roughness. Hastelloy tape is continuously electropolished with high polishing current density (0.5 ∼ 2 A/$\textrm{cm}^2$) and fast processing time (1 ∼ 3 min). Polished hastelloy tapes have surface roughness(RMS) of below 1 nm on a 5 ${\times}$ 5 $\mu\m^2$ from AFM and SEM.
강원도에서 토양과 기후 데이터베이스를 이용한 청보리의 재배 적지 구분
김경대 ( K D Kim ),성경일 ( K I Sung ),주진호 ( J H Joo ),김병완 ( B W Kim ),팽경륜 ( J L Peng ),이배훈 ( B H Lee ),잘일가세미네자드 ( J G Nejad ),조무환 ( M H Jo ),임영철 ( Y C Lim ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2013 강원 농업생명환경연구 Vol.25 No.3
본 연구는 토양과 기후 데이터베이스를 이용하여 조사료 재배적지 기준 설정 연구의 일환으로 청보리를 대상으로 강원도에서의 재배가능지역을 추정하였다. 토양요인항목으로는 토양 물리성인 토성, 배수, 경사, 유효토심 및 암반노출, 토양화학성인 토양산도, 토양염류도 및 유기물함량을 선정하고 기준값 및 가중치를 설정하였다. 기후요인항목으로는 1월 일최저온도 평균, 3-5월의 평균온도, 9-12월의 5℃ 이상 일수, 10-5월의 강수일수와 강수량 그리고 3월에서 5월까지의 일조시간을 선정하고 기준값 및 가중치를 설정하였다. 토양요인의 관점에서 강원도에서 청보리의 재배가능지 및 재배최적지는 영동지방의 경우 고성, 속초, 양양, 강릉, 동해 및 삼척이며 주로 경사가 완만한 해안지역에 분포하고 있었다. 영서지방은 철원, 양구, 춘천, 원주, 횡성, 평창 및 정선에 주로 분포하고 있었다. 기후요인의 관점에서 강원도는 대부분이 50점이상이었으며, 재배가능지는 고성, 속초, 양양, 강릉, 동해 및 삼척의 해안지역과 철원, 양구, 춘천, 원주, 횡성, 평창 및 정선 일부 지역이 포함되었다. 이상의 결과로부터 강원도에서 토양과 기후요인을 고려한 청보리의 재배가능지 및 재배최적지는 영동지방의 고성, 속초, 양양, 강릉, 동해 및 삼척의 해안지역을 중심으로 가능하였고, 영서지방의 철원, 양구, 춘천, 원주, 횡성, 평창 및 정선 일부지역에서 재배가능지로 나타나고 있다. 향후 청보리의 재배적지 연구를 위해서는 일조시간에 대한 전자정보의 확보가 이루어진다면, 더욱 정밀한 청보리 재배 적지의 예상이 가능할 것으로 판단된다. As a part of establishing suitability classification for forage production, use of the national soil and climate database was attempted for Whole crop barley (Hordeum vulgare var. hexastichon (L.) Asch.) in Gangwon Province. The soil data base were from Heugtoram of the National Academy of Agricultural Science, and the climate data base were from the National Center for Agro-Meteorology, respectively. Soil physical properties including soil texture, drainage, slope available depth and surface rock contents, and soil chemical properties including soil acidity and salinity, organic matter content were selected as soil factors. The criteria and weighting factors of these elements were scored. Climate factors including average daily minimum temperature in January, average temperature from March to May, the number of days of which average temperature was higher than 5℃ from September to December, the number of days of precipitation and its amount from October to May of the following year, and sunshine hours from March to May were selected, and criteria and weighting factors were scored. The electronic maps were developed with these scores using the national data base of soil and climate. Based on soil scores, the area of Goseong, Sogcho, Yangyang, Gangreung, Donghea and Samcheog in east coastal region with gentle slope were classified as the possible and/or the proper area for Whole crop barley cultivation in Gangwon Province. The lands with gentle or moderate slope of Cheolwon, Yanggu, Chuncheon, Wonju, Hweongseong, Pyungchang and Jeongsun in west side slope of Taebaeg mountains were classified as the possible and/or proper area as well. Based on climate score, the east coastal area of Goseong, Sogcho, Yangyang, Gangreung and Samcheog could be classified as the possible or proper area. Most area located on west side of the Taebaeg mountains were classified as not suitable for Whole crop barley production. In scattered area in Cheolwon, Yanggu, Chuncheon, Wonju, Hweongseong, Pyungchang and Jeongsun, where the scores exceeded 50, the Whole crop barley cultivation should be carefully managed for good production. As a results, based on soil with climate the area of Goseong, Sogcho, Yangyang, Gangreung, Donghea and Samcheog in east coastal region with gentle slope and some area of Cheolwon, Yanggu, Chuncheon, Wonju, Hweongseong, Pyungchang and Jeongsun were classified as the possible and/or the proper area for Whole crop barley cultivation in Gangwon Province. For better application of electronic maps of whole crop barley, acurate study will be possible if a data comfirmed on th shine hours is achieved.