• 제목/요약/키워드: application experiment

검색결과 4,638건 처리시간 0.027초

황함유 비료가 콩의 종실수량과 성분함량에 미치는 영향 (Effect of Sulfer Containing Fertilizers on Grain Yield and Chemical Composition of Soybean)

  • 채재석;김영두;박태일;장영선;박근용
    • 한국작물학회지
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    • 제38권2호
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    • pp.183-188
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    • 1993
  • 신개간 토양을 성토한 호남작물시험장 전작포장에서 석회시용 유무와 유신근비료 시용을 달리하여 콩의 생육, 수량 및 종실 성분 함량에 미치는 영향을 조사한 바 그 결과를 요약하면 다음과 같다. 1. 신개간지 적황색 식량토 (pH 4.9)에서 토양산도를 중화량으로 교정하면 종실수량에서 32%의 증수효과를 보였다. 2. 토양산도 교정에 따른 유산근 비료의 수량증수효과는 과인산석회 31%, 유안 11%, 석고 3%의 순이었으며 교정치 않았을 경우에는 고토석회 47%, 과인산석회 22%, 석고 15%의 순이었다. 3. 종실의 단백질 함량은 석회무시용구보다 석회시용구에서 많았으며 함황비료의 시용효과도 인정되었으나, 지방함량은 큰 차이를 인정 할수 없었다. 4. 석회 시용구에서 유산근 비료의 효과가 큰 것은 과인산석회와 유안이었으며 개량제로는 석고가 좋았고, 석회무시용구에서는 고토석회와 과인산석회가 우수하였다.

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아토피 피부염에 대한 화피(樺皮), 만형자(蔓荊子), 선학초(仙鶴草) 함유 외용제의 임상 효과 (Clinical Efficacy of External Application Containing Betula platyphyllae Cortex, Viticis Fructus, Agrimoniae herba in Atopic Dermatitis)

  • 홍지희;정현아
    • 한방안이비인후피부과학회지
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    • 제27권1호
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    • pp.1-16
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    • 2014
  • Objectives : The aim of this study is to examine the effect of external application containing herbal extracts (Betula platyphyllae Cortex, Viticis Fructus, Agrimoniae herba) to patients with atopic dermatitis. Methods : Twenty patients (experiment group) were treated with the external application containing herbal extracts (Betula platyphyllae Cortex, Viticis Fructus, Agrimoniae herba) and other twenty patients (control group) were treated with normal external application that doesn't contain herbal extracts for 2weeks. We observed comparisons between experiment and control group after 1week, 2weeks. Degrees of severity of atopic dermatitis were measured by SCORAD index (Scoring of Atopic Dermatitis Index). Statistical significance was achieved if the probability was less than 5% (p<0.05). Results : 1. After 1week of external application treatment, SCORAD Index in experiment group was significantly decreased comparing with control group, which is a marginally significant result between two groups. But after 2weeks the experiment group showed no statistically significant result. 2. After 1week of external application treatment, Intensity Criteria (Erythema, Edema/papulation, Total) in experiment group was significantly decreased comparing with control group, which is a statistically significant result between two groups. But after 2weeks the experiment group showed no statistically significant result. 3. After 1week and 2weeks of external application treatment, comparison of changes in Subjective Symptoms (Pruritus, Insomnia) indicated that the experiment group showed no statistically significant result. 4. After 1week of external application treatment, Total Quality of life through Skindex-29 in experiment group was significantly decreased comparing with control group, which is a marginally significant result between two groups. But after 2weeks the experiment group showed no statistically significant result. Conclusions : As a result of applying the external application containing herbal extracts to patients with atopic dermatitis and watching the progress, we can speculate that the external application containing herbal extracts has especially short-term therapeutical effects in mitigating the symptoms of Atopic Dermatitis. Thus, it is concluded and considered that the external application containing herbal extracts can be used by atopic patients effectively with almost no side-effect.

계분퇴비 시용시 고랭지 배추에 대한 질소 시비량 결정 (Determination of Nitrogen Application Level for Chinese Cabbage with Application of Poultry Manure Compost in Highland)

  • 이춘수;신관용;이정태;이계준;안재훈
    • 한국토양비료학회지
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    • 제36권5호
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    • pp.280-289
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    • 2003
  • 표고 750 m인 고랭지 사질양토에서 계분퇴비(N 2.0%, $P_2O_5$ 3.5%)를 $6Mg\;ha^{-1}$ 시용한 조건에서 여름배추에 대한 질소 시비 추천모델의 설정과 추천모델에 의한 질소 비료의 절감량을 구명하기 위하여 질소 시비수준을 달리하여 포장시험을 수행하였다. 계분퇴비 시용 시 최고수량 생산을 위한 질소 최고시비량은 $291kg\;ha^{-1}$이었으며 안전한 적정 질소시비량은 $174kg\;ha^{-1}$로 나타났다. 이러한 질소 시비수준은 계분퇴비 무시용 시의 최고시비량인 $335kg\;ha^{-1}$에 비하여 각각 0.87 및 0.60배에 해당한다. 산출된 시비배율을 현행 평난지 조건의 시비추천식에 대입하여 고랭지조건에 적합한 새로운 시비추천식을 도출해 낼 수 있었다. 고랭지 배추재배지의 평균 유기물 함량인 $33g\;kg^{-1}$을 적용해 보면, 계분퇴비 시용 시 질소 시비량은 최고 $215kg\;ha^{-1}$, 최저 $129kg\;ha^{-1}$로 현행 시비량에 비해 최고 59.7%, 최저 32.8%의 절감이 가능한 것으로 판단되었다. 계분퇴비 시용 시 최고수량을 생산한 질소 시비구에서는 계분퇴비 무시용구에 비하여 결구기와 수확기 토양의 유효인산 함량과 수확기 배추 경엽의 질소, 인산 및 칼리 함량과 이들의 흡수량이 증가하는 경향을 보였으며, 특히 질소 이용률을 10% 이상 높일 수 있었다.

질소 기아현상에 관한 반론적 연구 (Influence of fresh rice straw application on growth characteristics of tobacco(Nicotiana tabacum L.))

  • 이부경
    • 한국연초학회지
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    • 제12권2호
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    • pp.85-90
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    • 1990
  • Pot experiment was conducted to find out the effect of decomposing degree of rice straw on growth characteristics of flue-cured tobacco, NC82. Tobacco growth was hindered by fresh straw of rice application. Generally, it was known that if organic matter of high Carbon/Nitrogen ratio had applied in soil, there was temporary nitrogen deficiency in plant caused by soil microorganism utilized nitrogen contained organic matter. In pot experiment, it was supposed that tobacco growth hindered by fresh straw of rice application was not nitrogen deficiency by soil microorganism, but gas toxicity by fresh straw of rice application.

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벼 건답직파 재배시 볏짚처리 및 질소분시가 질소 흡수에 미치는 영향 (Effect of Rice Straw Treatment and Nitrogen Split Application on Nitrogen Uptake by Direct Seeding on Dry Paddy Rice)

  • 이경보;김선관;강종국;이덕배;김종구
    • 한국토양비료학회지
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    • 제30권4호
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    • pp.309-313
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    • 1997
  • 벼 건답직파 재배시 볏짚 시용과 질소 분시에 따른 벼 질소 흡수 양상을 검토하고자 호남평야지인 전북통에서 동진벼를 공시하여 포장 시험한 결과를 요약하면 다음과 같다. 1. 건답기간중 토양질소의 변화 양상을 보면 요소태질소는 파종후 7일이후에는 검출되지 않았으나, $NH_4-N$는 파종후 7일, $NO_3-N$는 파종후 25일에 최대값을 나타냈다. 2. 토양 깊이 70cm에서 채취된 토양 용액중 $NO_3-N$의 농도는 질소분시가 적은 기비중점인 구에서 파종후 생육초기에 감소되는 양이 많았으며, 볏짚을 처리함 으로써 표토로부터 심토로 이동되는 양을 감소시킬수 있었다. 3. 수확기 질소흡수량은 볏짚시용시 질소3회 분시구에서 가장 많았으며, 시비질소에 의한 질소이용률은 20%였으나, 볏짚 시용으로 27%까지 향상 시킬수 있었다. 4. 질소 분시에 따른 수량은 관행 5070 kg/ha, 질소 전량 기비구 4970 kg/ha, 2회 분시구 5110 kg/ha, 3회 분시구 5150 kg/ha로 관행에 비하여 근소한 차이로 증가 되었다.

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논 토양에서 질소비종이 CH4 배출에 미치는 영향 (Effects of Application of Nitrogen Fertilizers on Methane Emission in a Paddy Soil)

  • 이경보;이덕배;김종구;이상복;김재덕;한상수
    • 한국토양비료학회지
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    • 제33권3호
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    • pp.212-219
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    • 2000
  • 논 토양에서 $CH_4$ 배출에 대한 질소비료의 영향을 조사하기 위해 요소, 황산암모늄, 완효성비료(LCU)를 시용한후 시기별 $CH_4$ 배출양상 및 용존 $CH_4$ 함량을 조사한 결과를 요약하면 다음과 같다. 볏짚시용구에서는 벼 생육초기부터 $CH_4$ 배출이 많았으나 간단관개로 인하여 $CH_4$ 배출을 줄일수가 있었다. 벼 생육시기에 따른 $CH_4$ 배출양상은 출수기 무렵에 $CH_4$ flux가 높은 경향이었다. 볏짚 무시용에 비하여 볏짚시용구에서 $CH_4$ 함량이 높았으며 용존 $CH_4$ 함량은 토심 5cm에서 가장 높았으며, 질소 비종별 용존 $CH_4$ 함량은 황산암모늄구에서 가장 낮았다. $CH_4$ 배출계수($g\;m^{-2}day^{-1}$)는 요소구가 0.192, 황산암모늄구는 0.165, 완효성비료(LCU)구는 0.179이었으며 볏짚 시용구에서는 요소구가 0.265, 황산암모늄구는 0.207, 완효성비료(LCU)구는 0.318로서 황산암모늄 시용구에서 가장낮았다.

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교육을 위한 BIM 적용 실험 연구 - 초등학교 설계를 중심으로 - (The Experiment of BIM application for Design Education - In the Elementary School Project -)

  • 김용일
    • 교육시설 논문지
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    • 제21권5호
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    • pp.23-29
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    • 2014
  • It is evident that the education of architecture is being transformed under the influence of technological, environmental, social, and financial challenges. BIM application for design education is innovative responses that are expected to provide the high ground for the AEC industry. So the purpose of this paper introduces that application of BIM for design education of students is efficiency and effectiveness through an actual experiment by elementary school project. The results by actual experiment elaborate the role of BIM in architectural education and its appropriate place in the curriculum. Also they state that increasingly complex nature of professional world that is reliant on design teams, joint development efforts, and more complex design projects makes obsolete the designer who is trained as solo artist engaging in competitive and individual pursuits.

Enzyme and Microbial Activities in Paddy Soil Amended Continuously with Different Fertilizer Systems

  • Gadagi, Ravi;Park, Chang-Young;Im, Geon-Jae;Lee, Dong-Chang;Chung, Jong-Bae;Singvilay, Olayvanh;Sa, Tong-Min
    • 한국환경농학회지
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    • 제20권5호
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    • pp.325-329
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    • 2001
  • Soil enzyme and microbial activities are affected by fertilizer and compost applications and can be used as sensitive indicators of ecological stability. Microbial population and soil enzymes viz., dehydrogenase, urease, acid phosphatase and aryl-sulphatase were determined in the long-term fertilizer and compost applied paddy soil. Soil samples were collected from the four treatments (control, compost, NPK and compost+NPK). Long-term NPK+compost application significantly increased activities of urease, dehydrogenase and acid phosphatase than all other treatments. The compost application enhanced activities of urease, dehydrogenase and acid phosphatase than the NPK application. However, arylsulfatase activity was not significantly different between compost and fertilizer application. The highest microbial population was recorded in the NPK+compost treatment. The compost application also resulted in higher microbial population than the NPK application. The above results indicate that ecological stability could be maintained by application of compost alone or with NPK.

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Effect of Rice Bran and Wood Charcoal on Soil Properties and Yield of Continuous Cropping of Red Pepper

  • Won, J.G.;Jang, K.S.;Hwang, J.E.;Kwon, O.H.;Jeon, S.G.;Park, S.G.;Park, K.C.;Suh, Y.J.
    • 한국유기농업학회지
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    • 제19권spc호
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    • pp.218-221
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    • 2011
  • To improve the soil properties of physical and microbial community rice bran and wood charcoal were applied in the continuously cultivated plastic film house soil. Soil physical properties were improved by application of rice bran and charcoal compared to chemical fertilizer application (control) by 8~14% in bulk density and 5~9% in soil porosity. Changes in the biological ratio indexes of fatty acids in the soils were detected depending on the inputted materials. Especially in application of rice bran including mixture with charcoal, much more fungi and less bacteria were detected and the ratio of fungi to bacteria was increased, suggesting the more organic carbon metabolically active in these treatments. The high ratio of aerobe to anaerobe suggested the better aerobic conditions were in the soil inputted wood charcoal. From these results, it is important and possible to select some materials for the organic pepper cultivation, which may improve the poor condition soil.