• KOREAN JOURNAL OF CROP SCIENCE
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• v.38 no.2
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• pp.183-188
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• 1993

This experiment was conducted to investigate the effect of sulfur containing fertilizers on growth, yield and nutritive quality of soybean as affected by lime application at reclaimed soil. Lime application for neutralization requirements showed the effect of increased grain yield about 32% compared to the non application at newly opened land of red and yellow soil. In case of lime application, the sulfur containing fertilizers combined with super phosphate, ammonium sulfate, and gypsum increased the grain yield by 31%, 11%, and 3%, respectively. When lime was not applied, magnesium carbonate application increased the yield by 47%, super phosphate by 22%, and gypsum by 15%. The protein content of grain was higher at lime application than those of non lime application and was increased by the application of sulfur containing fertilizer. But lipid content was not affected by lime or sulfur application. From the above results obtained it was concluded that sulfur fertilizer effect under lime application was significant when combined with super phosphate or ammonium sulfate application. Magnesium carbonate or super phosphate application was the best combination with sulfur-containing fertilizer.

• Journal of the Korea Organic Resources Recycling Association
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• v.27 no.2
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• pp.19-30
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• 2019

Objective of this study was to develop an organic fertilizer utilizing domestic livestock horn meal and to investigate the application effect of rice and eggplant. The possibility of utilization of livestock horn meal as an organic resource to replace imported expeller cake fertilizer was examined. In order to select domestic organic resources with high nitrogen content, 8 kinds of organic matter such as chicken manure, fish meal, soybean meal, sesame meal, perilla meal, blood meal, livestock horn meal, and beer sludge were analyzed and organic resources with high nitrogen content were selected. In addition, the conditions for the production of organic fertilizers that can be used in organic agriculture were established by mixing of the rice husk biochar and the rice bran as the supplements with the raw materials for mixing ratios. The content of total nitrogen (T-N) in the livestock horn meal was 12.0 %, which was the next low in 13.5 % blood meal. The content of total nitrogen was 5.9 ~ 7.9 % in fish meal and oil cakes. Total nitrogen content of non-antibiotic chicken manure for organic farming was 3 % and nitrogen content in beer sludge was 3.5 %. Organic fertilizer was produced by using biochar, rice bran as a main ingredient of non-antibiotic chicken manure, livestock horn meal and beer sludge. Compared to nitrogen content (4.0 to 4.2 %) of imported expeller cake fertilizer (ECF), the nitrogen content of organic fertilizer utilizing domestic livestock horn meal is as high as 7.5 %. The developed organic fertilizer is met as Zn 400 mg/kg, Cu 120 mg/kg the quality of organic agricultural materials such as or less. To investigate the effect of fertilizer application on the crops, prototypes of developed organic fertilizer were used for the experiment under selected conditions. As a result of application the developed organic livestock horn meal fertilizer (LHMF) for cultivation of the rice and eggplant, the application quantity of the developed organic LHMF 100 % was decreased by 40 % compared to that of the mixed expeller cake fertilizer (MECF). The application of LHMF, which refers to the application rate corresponding to the nitrogen fertilization recommended by the soil test, was reduced by 40% compared to the application rate of MECF, but the same results were obtained in crop growth and yield. The selection of a new high concentration nitrogen source utilizing domestic organic resources and the development of organic fertilizer is the starting point of the research for substitution of imported ECF using domestic local resources at the present time that the spread of eco-friendly agriculture is becoming increasingly important. If it is expanded in the future, it is expected to contribute to the stable production of eco-friendly agricultural products.

• Journal of Korea Society of Industrial Information Systems
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• v.12 no.5
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• pp.47-53
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• 2007

On account of supporting the full spectrum of content types in enterprises, customers recognize the problems of the conventional way, that is, point solutions for content management. And then they increase the requirement for ECM (Enterprise Content Management) solutions. In this paper, we survey the spectrum of enterprise content, the components, core value, the market landscape, and application cases of ECM, in order to suggesting the prospective customers the approach for enterprise-wide content management.

• Journal of Information Processing Systems
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• v.10 no.4
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• pp.543-554
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• 2014

It is difficult for mobile learners to maintain a high level of concentration when learning content for more than an hour while they are on the move. Despite the attention span issue, many m-learning systems still provide their mobile learners with the same content once used in e-learning systems. This has called for an investigation to identify the suitable characteristics of the m-learning environment. With this in mind, we have conducted a survey in hopes of determining the requirements for developing more suitable m-learning content. Based on the results of the survey, we have developed a content model comprised of two types: a segment type and a supplement type. In addition, we have implemented a prototype system of the content model for Apple iPhones and Android smartphones in order to investigate a feasibility study of the model application.

• Korean Journal of Environmental Agriculture
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• v.15 no.3
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• pp.383-390
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• 1996

This experiment was conducted to investigate the influence of nitrogen fertilizer forms, fertilizer and herbicide application rates on growth of radish. The nitrate content and nitrate reductase activity of radish were analyzed along with the growing stage. Nitrate nitrogen was more efficient than ammonium nitrogen for radish. With increasing the fertilizer application rate, accumulated of nitrate content was increased. The amount of nitrate nitrogen was highest at 25days after seeding in petioles, and $32{\sim}39days$ after seeding in root. Nitrate content was decreased as sampling date was delayed, whereas the content increased in the root at early growing stage and then decreased. The nitrate cotent increased in the order of petioles, roots, and leaf blades and nitrate reductase activity increased petioles, leaf blades, and roots. The higher nitrogen fertilizer and herbicide application increased nitrate nitrogen accumulation in radish as compaired with control treatment and nitrate reductase activity showed similar trend.

• Korean Journal of Medicinal Crop Science
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• v.27 no.1
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• pp.1-8
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• 2019

Background: This study was conducted to investigate the effects of fertilization with the application of mixed organic matter after cultivating green manure crops on the growth and saponin content of Codonopsis lanceolata Trautv. Methods and Results: Five type of cultivation of green manure crops were done: hairy vetch as a single seedling crop (HV), hairy vetch and rye as a mixture of seedling (HV/R), additional fertilization with mixed organic matter after cultivation of a seedling mixture (HV/R/MO), chemical fertilizer (CF), and a non-treated control (NT). The total nitrogen content was the highest in the HV/R/MO treatment, followed by the HV, CF, HV/R and NT treatments, respectively. Nitrogen fixation was higher in the single seedling treatment with hairy vetch (HV) than in the treatment with a mixture of hairy vetch and rye seedling (HV/R). Moreover, the growth of C. lanceolata was greatly increased by the application of additional fertilizer after treatment with the mixture of hairy vetch and rye seedlings. The HV/R/MO treatment produced the highest total lancemaside content among the treatments, followed by HV, HV/R, CF, and NT, respectively. Conclusions: It was verified that C. lanceolata experienced superior growth with the application of mixed organic matter as additional fertilizer after the cultivation of green manure crops, and the content of its major saponins, lancemasides were also increased by this treatment.

• Journal of Convergence for Information Technology
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• v.11 no.2
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• pp.188-193
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• 2021

In this study, the moisture content of the face skin was changed according to the number of skin applications for female college students under 25 years of age. Moisture contents were measured using a skin moisture meter (skin oil and moisture meter, PRC, China). Skin used 500ml of Innisfree's blueberry rebalancing skin as a clinical trial material. Both the forehead, eyes, cheeks, and chin had a higher moisture content after one layer of application than before and after one layer of application, and after ten layers of application, it can be seen that the moisture content is higher. As a result, when applying basic products after washing your face, the first step is to increase the number of skins, and then apply basic products such as lotion and moisturizing cream to increase the moisture content.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.45 no.6
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• pp.387-391
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• 2000

Barley straw is a good source of organic matter for next crop growth following barley. This study was conducted to investigate effects of barley straw application methods (application, removal, or incineration) on growth and yield in soybean cultivation following barley. A soybean variety, Eunhakong, was sown on 12 June with drill-seeder attached to tractor after tillage. Barley straw application resulted in increase in organic matter content compared to removal and incineration of barley straw, and soil physical properties such as water content and porosity, were improved by application and incineration of barley straw. Weed occurrence was deterred by 44% in barley straw application and by 31% in barley straw incineration compared with removal of barley straw. Number and dry weight of soybean nodules were move abundant in barley straw application than the other treatments at 4 and R2 stages. Barley straw application had less for dry weight than barley straw removal but greater than incineration of barley straw about 30 days after seeding. However barley straw application caused greater top dry weight 90 days after seeding. Root dry weight was not affected by barley straw application method at all growth stage. There're no significant differences in soybean yield among barley straw application methods.

• Korean Journal of Soil Science and Fertilizer
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• v.17 no.4
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• pp.356-362
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• 1984

A field experiment was carried out to investigate the sulfur effects on yield, growth and nutritive qualities of soybean in the different fertilizer application methods. Ammonium sulfate and super-phosphate were applied to the soil with levels of 0, 2, 4, and 6Kg S/10a and potassium sulfate, ammonium sulfate and thiourea were applied by foliar application with 2KgS/10a. The results obtained were as follows; 1. Grain and dry matter yield of soybean were increased by the increase of sulfur application and sulfur application showed positive effect on yield components. 2. Sulfur application increased the sulfur content and decreased N/S ratio in grain of soybean. 3. Protein content was increased by raising sulfur application up to 4Kg S/10a. Sulfur application influenced on amino acid composition of soybean protein. Cysteine and methionine contents were increased by sulfur application. 4. Lipid content of soybean grain and inorganic ion absorption by soybean plant were not influenced significantly by sulfur application. 5. In application effects, there was no significant difference among sulfur fertilizers, but foliar application was more effective than soil application.

• Journal of Applied Biological Chemistry
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• v.58 no.4
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• pp.303-309
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• 2015

${\gamma}$-Aminobutyric acid (GABA) content in fermented plant products and their main plant materials (aerial part of Acanthopanax sessiliflorus, fruit of Crataegus pinnatifida, and whole plant of Morus alba) was determined by high-performance liquid chromatography. GABA was quantified using a reverse-phase column with a gradient elution program (water:acetonitrile =90:10 to 0:100 for 40 min). UV detection was conducted at 280 nm. GABA content was measured in fermented plant products (15.07 mg/g), aerial part of A. sessiliflorus (4.49 mg/g), fruit of C. pinnatifida (10.59 mg/g), and whole plant of M. alba (2.31 mg/g). The presence of GABA in fermented plant products, including A. sessiliflorus, C. pinnatifida, and M. alba is important in industrial application for health supplements.