• 한국작물학회:학술대회논문집
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• 한국작물학회 2001년도 추계 학술대회지
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• pp.72-90
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• 2001

Environment agriculture carried out from 1999 in Daeho reclaimed saline area, located in central east cost of Choongnam Korea, resulted in dramatic reduction of amount of nitrogen fertilizer and application times and amount of pesticides. The ecological status of Daeho reclaimed saline area was considered to still very sound from the results of ecological survey on flora and fauna. However, it was desirable to adapt precision agriculture for production of high eating quality of rice and preservation of Daeho ecosystem. Especially, precise application of nitrogen and phosphorus fertilizer was recommendable for prevention of water pollution in environment rice cultivation by duck or mud snail or crab. The bioefficacy of Scirpus maritimus and Echinochloa crus-galli in paddy field of environment rice cultivation by duck or mud snail or crab in Daeho reclaimed saline area was revealed very low. Therefor, it was concluded that the pre-measures of reduction of natural weed population were necessary for successful environment agriculture. The most desirable and ideal environmentally sound agriculture in Daeho reclaimed saline area was performance of crop rotation, introduction of legume crops and green manure crops, and also, simultaneous management of crop production and animal husbandry for smooth flow of energy cycle within the closed Daeho ecosystem.

• Journal of Ginseng Research
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• 제43권4호
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• pp.508-516
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• 2019

Background: Ginsenosides are not only the principal bioactive components but also the important indexes to the quality assessment of Panax ginseng Meyer. Their contents in cultivated ginseng vary with the growth environment and age. The present study aimed at evaluating the significant difference between 36 cultivated ginseng of different cultivation areas and ages based on the simultaneously determined contents of 14 ginsenosides. Methods: A high-performance liquid chromatography (HPLC) coupled with triple quadrupole mass spectrometer (MS) method was developed and used in the multiple reaction-monitoring (MRM) mode (HPLC-MRM/MS) for the quantitative analysis of ginsenosides. Multivariate statistical analysis, such as principal component analysis and partial least squares-discriminant analysis, was applied to discriminate ginseng samples of various cultivation areas and ages and to discover the differentially accumulated ginsenoside markers. Results: The developed HPLC-MRM/MS method was validated to be precise, accurate, stable, sensitive, and repeatable for the simultaneous determination of 14 ginsenosides. It was found that the 3- and 5-yr-old ginseng samples were differentiated distinctly by all means of multivariate statistical analysis, whereas the 4-yr-old samples exhibited similarity to either 3- or 5-yr-old samples in the contents of ginsenosides. Among the 14 detected ginsenosides, Rg1, Rb1, Rb2, Rc, 20(S)-Rf, 20(S)-Rh1, and Rb3 were identified as potential markers for the differentiation of cultivation ages. In addition, the 5-yr-old samples were able to be classified in cultivation area based on the contents of ginsenosides, whereas the 3- and 4-yr-old samples showed little differences in cultivation area. Conclusion: This study demonstrated that the HPLC-MRM/MS method combined with multivariate statistical analysis provides deep insight into the accumulation characteristics of ginsenosides and could be used to differentiate ginseng that are cultivated in different areas and ages.

• 스마트미디어저널
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• 제6권4호
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• pp.58-64
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• 2017

현대 사회는 급속한 세계인구의 증가, 농촌 인구의 고령화, 산업화로 인한 농작물 재배 지역의 감소, 농촌 지역의 수익 구조의 불량 등으로 농부들의 탈농촌화 등으로 먹거리 문제 해결이 중요한 화두로 떠오르고 있다. 최근 농촌의 수익을 증대시키기 위해서 스마트 팜(Smart Farm) 분야의 연구가 활발하게 이루어지고 있다. 기존의 스마트 팜 연구는 주로 온실의 농작물의 재배 환경을 모니터링 하여 온실의 조도, 습도, 토양 등이 불량해지면 재배 환경인자를 제어하는 시스템을 자동으로 가동시켜 농작물의 재배 환경을 최적의 상태로 유지하는 데 중점을 두어 연구되고 있다. 즉, 실내에서 재배하는 농작물에 중점을 두어 연구가 이루어지고 있으며 실외에서 재배되는 농작물의 재배환경에 적용되는 연구는 많이 이루어지지 않았다. 본 논문에서는 과수원에서 자라는 과수의 수확 시기를 정확하게 예측하여 최상의 품질로 과일이 수확되게 지원하고 수확이 불량한 지역을 빅데이터 분석을 통해 모니터링하여 불량 지역의 수확성을 향상시키기 위해서 집중 관리할 수 있은 기능을 제공하는 아키텍처를 제안한다. 수확에 관련된 인자는 과일 색상 정보와 과일 무게 정보를 사용하며 실시간으로 수집되는 수확 상관인자 데이터를 Apache Spark 엔진을 이용하여 분석하도록 제안한다. Apache Spark 엔진은 대용량 배치성 데이터 분석 뿐만 아니라 실시간 데이터 분석에서도 우수한 성능을 보인다. 서비스를 수신하는 사용자 디바이스는 PC User 와 Smart Phone User를 지원한다. 센싱 데이터 수신 장치는 센싱되는 데이터를 수신한 후 서버로 전송하는 단순한 처리만 필요하므로 Arduino를 적용하였다. 과일의 수확시기를 조절하여 좋은 품질의 과일을 생산하려면 수확이 불량한 지역을 판단하여 불량지역을 집중 관리해야 한다. 본 논문에서는 빅 데이터 분석 기법을 이용해서 과일 수확의 불량지역을 판단하는 아키텍처 모델을 제안한다.

• 한국산림과학회지
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• 제107권3호
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• pp.316-323
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• 2018

본 연구는 고사리, 곰취, 산마늘 등 주요 산채류에 대한 재배공정을 조사하여 소득분석을 실시함으로써 향후 임산물에 대한 손실보상 기준 및 임업경영진단 등에 필요한 기초자료를 제공하기 위하여 실시하였다. 조사결과 품목별 재배형태는 크게 노지재배와 산지재배로 구분되었다. 품목별 단위면적당($3.3m^2$) 연간 평균소득은 고사리 노지재배는 6.5천원, 고사리 산지재배는 3.2천원, 곰취 노지재배는 20.4천원, 산마늘 노지재배는 20.9천원, 산마늘 산지재배는 7.3천원 등으로 나타났다. 특히, 최근 소비자 수요가 크게 증가하고 있는 산마늘과 곰취의 노지재배 단위면적당($3.3m^2$) 연간 평균소득은 고사리에 비해서 매우 높은 것으로 분석되었다. 이러한 원인은 고사리 재배 시 경영비(토지임차료, 고용노동비)의 투입비중이 타 품목에 비해 매우 높기 때문이다. 연간 평균소득이 높은 곰취와 산마늘의 경우 종묘 및 종근 구입 등 초기 투자비용이 경영비의 평균 40% 이상을 차지하고 있어 향후 농산촌지역의 소득원 및 재배 활성화를 위해서는 이에 대한 정부의 적절한 지원이 필요할 것으로 판단된다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.86-86
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• 2022

• 생약학회지
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• 제22권2호
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• pp.134-141
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• 1991

In an effort to make it possible to cultivate Coptis japonica in Korea, the environmental and ecological conditions allowing the wild growth and distribution of Coptis sp. in Japan were investigated. The environmental conditions of the culture yard and the culture methods of C. japonica were also investigated. From these studies, it was concluded that the cultivation of C. japonica requires a well-drained sandy soil, $pH\;4.5{\sim}5.5$, which is facing North or Northwest. The area suitable for the cultivation of C. japonica should have rainfall of $1,000{\sim}1,500mm$ per year, be covered with snow for $30{\sim}60$ days in the winter, and be blocked $40{\sim}70%$, of the sun shine. These findings suggest that in korea the cultivation of C. japonica may be possible in the areas ranging from Sock-cho to Kang-neung, Mt. Odae, Mt. Taebaek and Mt. Sobaek where is chill and much moisturous in summer.

• 한국초지조사료학회지
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• 제8권1호
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• pp.47-54
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• 1988

The growth characteristics and yield per unit area of two cultivation systems of forage, corn (Zea mays L.) monoculture and corn-cowpea (Vigna sinesis King) inter-cropping were compared and obtained follow results. 1. The two cultivation systems were not significantly different in leaf length, leaf width and length of internode with harvesting time. 2. The weight of stalk and leaves of a plant were decreased with maturity, while weight of ear was markedly increased. The patterns of relative ratio of each components was essentially same in each cultivation system. In corn monocrop., the percentages of stalk, leaf and ear at final harvesting stage were 22.9, 13.7 and 63.4, respectively. 3. Dry matter yield per unit area (33kgIlOa) of intercropped corn at yellow stage was similar to that of monocropped corn ( l,482.8kg/ 10a vs 1 ,SO8.9kg/ 10a). At ripe stage, however, the DM yield of intercrop. was higher than that of monocrop. (1,810.4kg/lOa vs 1,660.4 kg/ 1 Oa). 4. The same pattern was observed in organic matter yield.

• 한국농공학회:학술대회논문집
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• 한국농공학회 1998년도 학술발표회 발표논문집
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• pp.217-223
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• 1998

This study was performed to figure out water consumption of the twisted sweet pepper in a greenhouse. Obtained results are as follows; 1. The ambient temperature was nearly same as the normal year, while the average air temperature and the relative humidity in the green house were little bit higher than those of the outside condition. The transparency of the greenhouse roof was approximately 50%. The total amount of rainfall during the irrigation period was 1,040㎜ which is 350㎜ higher than 1997 during the same period. 2. In case of pot cultivation, as the saturation ratio was increased, the aeaf area and plant height and yield were also increased. The yield from the field cultivation was higher than the average yield from the pot cultivations which are treated by three levels of saturation ratio. 3. The variation of daily consumptive use of the twisted sweet pepper was very large in it's range. In case of the pot cultivation, as the saturation was increased, the daily and the total consumptive use were increased. 4. The daily consumptive use was strongly correlated with the ambient temperature, while it was weakly correlated with the relative humidity and solar radiation. 5. There were close correlation between plant environment; leaf area, plant height and yield, and consumptive use. As the saturation ratio was increased, the correlation between those plant factors and consumptive use was getting stronger.

• Mycobiology
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• 제51권5호
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• pp.354-359
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• 2023

Tricholoma matsutake has been the most valuable ectomycorrhizal fungi in Asia because of its unique flavor and taste. However, due to the difficulty of artificial cultivation, the cultivation of T. matsutake has relied on natural growth in forests. To cultivate the T. matsutake artificially, microorganisms in fairy rings were introduced. In this study, we isolated 30 fungal species of microfungi from the soil of fairy rings. Among them, one single fungal strain showed a promoting effect on the growth of T. matsutake. The growth effect was confirmed by measuring the growth area of T. matsutake and enzyme activities including a-amylase, cellulase, and b-glucosidase. In comparison with control, microfungal metabolite increased the growth area of T. matsutake by 213% and the enzyme activity of T. matsutake by 110-200%. The isolated fungal strain was identified as Penicillium citreonigrum by BLAST on the NCBI database. The Discovery of this microfungal strain is expected to contribute to artificial cultivation of T. matsutake.

• 한국관개배수논문집
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• 제8권2호
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• pp.45-54
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• 2001

A plenty of wastes by greenhouse cultivation affect soil and water pollution much more than those by rice cultivation in paddy field. The greenhouse on paddy field has been increased dramatically, however their physical information such as the location an