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김형갑,김웅주 한국연초학회 1984 한국연초학회지 Vol.6 No.2
This experiment was conducted to investigate the effect of physical and chemical characteristics of lower grade tobacco with treatment of ozone. In ozonization of low grade tobacco, optimum moisture was 20 percentage, and decrease ratio of content of tobacco leaf was 30 percentage in nicotine , 15.9 percentage in total volatile base, 10.5 percentage in petroleum-ether-extract, 29.5 percentage in solanesol, and decrease ratio of cigarette smoke composition was 31 percentage in nicotine, 6.08 percentage in tar.
박영선,박훈,김웅주 한국농화학회 1982 Applied Biological Chemistry (Appl Biol Chem) Vol.25 No.1
In the countrywide NPK simple trials nitrogen content is higher in grain but lower in straw of Tongil than of the local. Potassium content was reverse of nitrogen, Phosphorus content was higher in both parts of Tongil. Phosphorus uptake amount of Tongil was twice of the local. Tongil showed profered uptake of divalent canons (Ca & Mg) than monovalent comparing with the local. Silica uptake ap feared to be lower in Tongil than in the local. Production efficiency(yield/total nitrogen taken up) translocation efficiency(grain N/total N amount) fertilizer use efficiency, absorbed fertilizer efficiency and fertilization efficiency of nitrogen are higher in Tongil than in the local. Translocation efficiency of Phosphorus was higher in Tongil but that of potassium was tower. SCU greatly decreased silica uptake in the local and increased nitrogen fertilizer use efficiency especially in the local.
Study on Determine the Amount of Nitrogen to be Applied at Tillering and Reproductive Stages of Rice
오왕근,박준규,김웅주,Oh, Wang Keon,Park, Jun Kyu,Kim, Ung Ju 한국토양비료학회 1971 한국토양비료학회지 Vol.4 No.2
1. 수도품종(水稻品種), 진흥(振興)을 써서 1969년(年)에 한 농가(農家)포장에서 실시(實施)한 비료시험결과(肥料試驗結果)에 입각(立脚)하여 유효분얼기와 유수형성기(幼穗形成期)에 시비(施肥)할 질소비료량(窒素肥料量)을 결정(決定)하는 한 방법(方法)이 연구(硏究)되었다. 본시험(本試驗)에서는 0.1 ha 당(當) 4kg 상당(相當)의 질소(窒素)가 기비(基肥)로 각처리구(各處理區)에 시비(施肥) 되었다. 2. 유수형성기(幼穗形成期)에 시비(施肥)한 질소(窒素)는 수량(收量)을 현저히 증가시켰고 또 분얼기(分蘖期)에 시비(施肥)해야 할 질소량(窒素量)을 절하(切下)하고 유수형성기(幼穗形成期)에 0.1 ha 당(當) 6.82kg의 질소(窒素)를 시용(施用)했을 때의 수량(收量) 670kg/0.1ha은 분얼기(分蘖期)에 8kg 이상(以上)의 질소(窒素)를 시용(施用)했을 때의 수량(收量) 644kg/0.1ha 보다 높았다. 이러한 사실(事實)은 유수형성기(幼穗形成期)에 주는 추비(追肥)가 얼마나 중요(重要)한 것인가를 시조(施調)해 주는 것이다. 3. 분얼기(分蘖期)과 유수형성기(幼穗形成期)에 주어야 할 질소량(窒素量)은 토양비옥도(土壤肥沃度)에 따라 다른 것이기 때문에 이 양생육기(兩生育期)에 주어야 하는 질소량(窒素量)과 토양분석치(土壤分析値)와의 상관연구(相關硏究)는 필요(必要)한 것으로 그 시행(施行)을 제안(提案)한다. 4. 합리적(合理的) 시비법(施肥法)의 수립을 위하여 각생육기(各生育期)에 시비(施肥) 해야 하는 비료량(肥料量)과 수량구성요소(收量構成要素)와의 관계(關係)에 대(對)한 연구(硏究)는 필요(必要)한 것으로 간주된다. 1. Based upon an fertilizer experiment done in a farmer's field, with a medium maturity variety, Jinheung, (in 1969) a method of determination of nitrogen to be additionally given, at tillering and reproductive stages was studied. In this experiment, four kilograms of nitrogen per 0.1 ha was applied as basal dressing to all experimental treatments at transplanting time. 2. The application of nitrogen at the reproductive stage of paddy increased the yield remarkably and cut down the amount of nitrogen to be given at the tillering stage. The yield of paddy, 670kg/0.1 ha obtained by the application of 6.82kg N/0.1 ha at the reproductive stage far exceeded the yield, 644kg/0.1ha obtained when over 8kg N/0.1ha of N is applied at tillering stage alone. This emphasizes the importance of nitrogen top dressing at the reproductive stage. 3. As the amount of nitrogen to be given at both stages, reproductive and tillering, would be the reflection of soil fertility of the field, a correlative study between the amount of nitrogen to be given at both stages and soil analysis is suggested to be undertaken. 4. A study on the relationship between the amount of fertilizer to be given at stages different growth and yield components is suggested to be undertaken for the purpose of establishing a better fertilizer use technique.
陸昌洙,洪淳達,金雄柱,鄭勳采 충북대학교 엽연초연구소 1983 煙草硏究 Vol.10 No.-
Experiment was conducted to investigate the relation of growth characteristics, nutrient amount absorbed by tobacco plant, chemical components, changes of NH4 -N and NO3-N in the soil, yield, quality and price per 10a. Nc2326 and Burley 21-tobacco plant grew in sandy loam and clay loam by treated different levels of nitrogen, phosphorous and potassium fertilizers. the results were summarized as follows. 1.The plant height, length and width of the largest leaf, fresh weight and dry weight of tobacco leaves and stem of NC2326 and Burley21 were greater in clay loam than those in the sandy loam during growing. 2.The amount of nitrogen and phosphorous in tobacco leaves and stem absorbed by NC 2326 grown in clay loam were increased by 60days after transplanting, and then decreased, and amount absorbed by Burley 21 increased continuously in sandy loam and clay loam till the harvesting time. 3.The contents of potassium, calsium and magnesium in the leaves of NC 2326 and Burley 21 were increased continously during growing period and the amount of patassium uptake was greatest. 4.Total nitrogen, total alkaloid and reducing sugar in the dry leaves of NC 2326 and Burley 21 showed no differences between the plot of sandy loam and clay, but Burley 21 showed higher content of total nitrogen and alkaloid than NC2326. 5.Changes of NH4-N and NO3 -N in soil decreased gradually during growing period. Amount of NH4 -N in the plot of Burley 21 was higher than that in NC 2326 during glowing period. 6.The best yield was shown in the NC 2326 glowing in clay loam soil and quality was highest in the sandy loam. The highest price per 10a, 590, 400, was shown in clay loam with 10-10-20kg/10a fertilization.