• Korean Journal of Veterinary Research
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• v.47 no.3
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• pp.315-319
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• 2007

Fibrinopurulent peritonitis and abdominal abscesses associated with Streptococcus (S.) equi subsp. zooepidemicus is reported in a 1-year-old female thoroughbred horse. The horse died after showing 5-day history of the cold, severe abdominal distention, abdominal breathing, hyperthermia, anorexia, and loss of intestinal sound. At necropsy, several liters of turbid yellowish green fluid were seen in the abdominal cavity. Yellowish creamy and fibrinous or bloody materials were presented on the serosa of various abdominal organs that were intensively adhered with each other. Spleen and mesenteric lymph node were remarkably enlarged. Affected lobes of the lung showed severe congestion, hemorrhage and doughy consistency. Histologically, the lung showed hemorrhagic pneumonia with diffuse congestion and edema. Severe diffuse fibrinopurulent peritonitis with Gram-positive bacterial cocci and adjacent fibrosis were showed in the serosa of various abdominal organs such as liver, spleen, stomach, and intestine. And multifocal abscess pouches were presented in the granulation tissue of abdominal viscera. S. equi subsp. zooepidemicus was isolated from the peritoneal swab, abdominal organs, and lung. Hematogenous dissemination of bacteria from hemorrhagic pneumonia is proposed as the route of infection in this case.

• The Journal of the Korea institute of electronic communication sciences
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• v.10 no.5
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• pp.623-628
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• 2015

As the current heating control of the greenhouse is located in specifically designed place, there is an inevitable difference in degrees depending on the latitude in it. Even though it is necessary to maintain the proper temperature in the greenhouse producing vegetables and fruit plants, the difference between ups and downs in the facilities results in the increasing energy consumption to both warm and cool down the facilities. The newest heating method, automatic control system of vertical agitation heater, which manipulates the inner air circulation efficiently, is suggested in this paper. The proposed system utilizes both the upper temperature and the lower temperature, and controls the air circulation fan and heating independently, so that maximizes the efficiency of heating with the minimum energy and implements predictable planning of farm products.

• Journal of Korean Society of Environmental Engineers
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• v.31 no.5
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• pp.346-351
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• 2009

To investigate concentration and characteristics of dioxins in soil at Cheongju city, total 28 soil samples were collected. The total and I-TEQ concentration of 17 PCDDs/DFs ranged from 2.30 to 630.40 pg/g dry weight and from 0.002 to 9.79 pg I-TEQ/g dry weight with averages of 55.42 pg/g and 1.13 pg I-TEQ/g, respectively. These levels are very lower than those of around various incinerators in Korea (from n.d. to 153.23 with average value of 7.36 I-TEQ/g). The correlation between total concentration and TEQ concentration showed significant with 99% confidence interval (p-value < 0.001). The TEQ concentration as land use was high as follows; industrial area> green area> residential and commercial area> farm land. In terms of congener distribution, OCDD which is highly detected in general soil samples, was predominant and showed various fraction (from 23 to 100%). The ratios of PCDF concentration against to PCDD concentration varied as samples (from 0.1 to 2.4).

• Proceedings of the Korean Society of Crop Science Conference
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• 2017.06a
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• pp.226-226
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• 2017

This study was to evaluate methods to high quality food ramie rice cake, thereby increasing farm income. This study investigated the effects of different covering material on stable winter survival management with edible leaf in Ramie(Boehmeria nivea L.). The method of winter survival with covering material were conducted under three condition compose to Non covering, Rice straw cutting covered with 500kg.10a-1, Rice husks covered with 1,000kg.10a-1(covered 4~5 cm thickness in the soil surface). Method of application were standard application(N-P-K-Compost applied at 27-9-27-600kg.10a-1. Compost and fused phosphate applied at 100% of basal fertilizer in March 25. 20% of top dressing were four times application in March 25 - October 5. Planting year were March 15, 2011. Plants were spaced 60 cm apart in rows 25 cm apart with open cultivation. According to non covering < Rice husks covered with 1,000kg.10a-1 < Rice straw cutting covered with 500kg.10a-1 cultivation this order, aerial part as a result were plenty amount of growth. Sprout time and winter survival rates was uncovering control plot compared to 2 - 5 days quickly, 45-57% highly by rice husks and rice straw covering. Green leaf yields is untreated control plot (12,44 kg.10a-1) compared to rice husks covering 7% higher, and rice straw covering increased to 18% of the most.

• The Korean Journal of Community Living Science
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• v.18 no.4
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• pp.655-670
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• 2007

The purpose of this study was to develop a brand naming strategy for rural specialty products of Muju. This study was to apply brand development research to the field. The selected investigation subject, a local farming operation producing a specialty product, was chosen from a New Enterprise Support Project of Farm Women ('06). The selected subject was a farming operation producing bokbunja drink in Muju. The data was derived from 137 female consumers. The major results of this study were as follows. First, the process of brand development strategy was advanced by six steps: Step 1, environment analysis; Step 2, brand case study; Step 3, SWOT analysis (Strength Weakness, Opportunity, Threat factor analysis); Step 4, direction design for brand naming development (Targeting, Brand focus concept extraction); Step 5, brand logo and symbol production; and Step6, Evaluation. Second, to extract brand naming development direction, key concepts in association with natural connection, area features, representative resources, and natural friendship were investigated. Namely, the health function concept was selected on the basis of a consumer recognition investigation where results appeared most highly favorable. Also, it was decided that the direction of brand naming should emphasize a green image and the location name of Muju. Finally, the brand name was decided to be "Saenggichan" bokbunja liquid and the slogan went with "guchondon-native thorn bokbunja from jar maturing."

• Korean Journal of Organic Agriculture
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• v.15 no.4
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• pp.399-411
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• 2007

Korean organic farming has been well developed over the last two decades. It demonstrates that the number of certificated farm for organic agriculture and products have been drastically increased in recent year. However, the organic farmers have thought that organic farming rely only on organic fertilizer and they don't keep organic farming principle in which organic farmer should enhance biological activity and crop rotation. This study was to compare nutrient input, recommendation, cropping system and organic product circulation between the early $20^{th}$ century and beginning of the $21^{st}$ century. The population of Korea has increased 7.3 times more than that of a century ago but cultivated land has been decreased during 100 years. The rice production in 2002 was 4.2 times higher than that of production in 1912. The input of N, P and K in 1907 on the basis of King's suggestion was 95.6kg/ha, 15.9kg/ha and 3.0kg/ha, respectively. Nitrogen came from excreta (40%), green manure (55%) and compost (5%) in the early 20th century. On the other hand, organic farmer input organic resources such as wood chip (30.1%), compost (27.8%), rice straw (14%) and others (25%) these days. In terms of nutrient balance calculated nutrient and absorption by plants, organic rice farmer apply excessive nitrogen and phosphorus to the soil. They was used to put $7{\sim}10$ times more nitrogen than that of a century ago. Nutrient recommendation was similar in N and P between early 20th century and early $21^{st}$ century. Farmers in both century did not rotate crops in the field. Today, organic farmers engaged in more continuous cultivation than in early 20th century. Farmers in the early $20^{th}$ century produced locally, consumed locally the agricultural products, but organic farmers in the $21^{st}$ century produce the organic product in the local farmland and consumed in the large city and also a lot of foreign organic products have been imported in recent year.

• Journal of The Korean Society of Grassland and Forage Science
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• v.7 no.1
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• pp.55-62
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• 1987

These experiments were conducted at the upland of Livestock Farm, Seoul National University, Suweon to determine the growth characteristics, winter-hardiness and forage yield of selected southern and northern-types of winter rye (Secale cereale L.) in comparison with the Korean native rye over two seasons, 1977-78 and 1980-8 1. During the 1977-78 season, most southern-type rye varieties except Explorer and Abruzzi headed 2 to 6 days earlier than the Korean native rye and 6 to 10 days earlier than northerntype rye varieties Rymin and Puma, while in 1980-81 southern-type rye varieties headed 5 to 7 days earlier than the Korean native rye, therefore, the Korean native rye seemed to be medium in maturity. There were no significant differences in winter-hardiness among different rye varieties with the exception of the lowest winter survivals of Wintergrazer 70, Explorer and triticale, and Gator, Explorer and Florida Black during the 1977-78 and 1980-8 1 seasons, respectively. Southern-type rye varieties tended to yield more forage than northern-type and the Korean native rye varieties when harvest was made in the later part of April. During 1977-78 season, Vita-Graze, Elbon and Athens Abruzzi rye varieties produced significantly more forage than the Korean native rye, but in 1980-81 Wrens Abruzzi rye produced significantly more forage than the Korean native rye. Based on the results of the two seasons, southern-type rye varieties,Vita-Graze, Athens Abruzzi, Elbon and Wrens Abruzzi could be recommended as a source of green forage for livestock in April in middle-northern parts of Korea.

• Journal of Mushroom
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• v.12 no.1
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• pp.63-66
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• 2014

The karyotype of F. velutipes Korean cultivar, Fv 3-6, was compared with those of Japanese cultivars, Fv 0-1, Fv 1-5, Fv 11-1, by CHEF gel electrophoresis. The Korean cultivar, Fv 3-6, showed the difference from the three Japanese cultivars in number and size of chromosomes; the Fv 3-6 had two and one more chromosomes then Fv 0-1 and Fv 11-4, and Fv 1-5 had, respectively. The karyotyping by CHEF gel electrophoresis is quite suitable to define new Korean cultivars against Japanese cultivars.

• Magazine of the Korean Society of Agricultural Engineers
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• v.16 no.2
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• pp.3430-3437
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• 1974

.It is very importaut to know the water consumption of crops in planning irrigation works and practicing suitable soil moisture management. For the purpose of making it clear that how much water be consumed to cultivate the Chinese cabbage, Chamber method has been applied. Main equipments in the transpiration chamber are flowers, manometer and electric thermograph. The chamber made of vynyl plate has a small entrance at the base and an exit at the top, and the ventilation in the chamber was carried out by a flower through the entrance and exit. Air-flow adjusted by an orifice manometer enters the chamber from the outside over the crop canopy through the pipe like a chimney and finally goes out to the outside. Two sets which consist of a pair of dry and wet bulb made by thermistor are installed in the entrance and exit tube, and record air temperature automatically. Evapotranspiration amount is computed from the air-flow quantity and difference in absolute humidity between at the entrance and exit of the chamber by the following equation: ET=(X2-X1)${\times}$Q where ET=evapotranspiration amount X1=absolute humidity at the entrance(g/㎥) X2=absolute humidity at the exit(g/㎥) Q=air-flow quantity(㎥) This study was carried out at the upland farm of the Institute of Agriculture Engimeering and Utilization, Suwon, Korea. from 1971 to 1973. The results obtained in this experiment are as follows: 1. The total amount of evapotranspiration of Chinese Cabbage that is cultivated in autumn is 408.1mm during growth period. 2. Chinese cabbage rapidly grows up in the second ten days of September, 40th to 50th days after seeding. At the same time, the maximum amount of evaportranspiration of Chinese cabbage is 61.6mm/10 days 3. The correlation between Pan-evaporation and evapotranspiration is high, coefficient of correlation r=0.88**, and can be shown as The following regression equation: ET=0.913E+20.273 4. Evapotranspiration is closely related with meteorological factors: r=0.85**, for insolation, r=0.76** for air temperature, respectively. 5. The percentage of evapotranspiration amount, at the beginning of growth stage, gradually increases in proportion as the Chinese Cabbage grows but is largely affected by meteorological factors after the green cover formation. 6. By Blaney and Griddle formula, evaportranspiration coefficient "K" are within from 0,85 to 1.27.

• Journal of Biosystems Engineering
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• v.38 no.4
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• pp.223-227
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• 2013

Purpose: The objectives of this study were to develop a general purpose baler system that is appropriate for the domestic forage cultivation environment and operated by the medium size tractor for production of bale silage made of green forage crops, and to test its performance. Methods: In a first experiment, the time of formation per one bale and densities of bales that are produced from bale system, were measured. In a second experiment, power requirement was measured by a power measurement system manufactured during bale system work. Results: The power measurement system was constructed with strain-gage sensors to measure torque of a PTO axle and proximity sensor to measure rotating speed of a PTO axle. Thus, the power requirement was calculated by PTO torque and PTO rotating speed. For evaluation of bale quality, the samples of bales were analyzed for contents of moisture, ADF, NDF and TDN. Conclusions: If the results of this study will be utilized, the coefficient of utilization of agricultural machinery will be increased by the operation of a medium size tractor that is a major disseminated tractor in farm, and it will contribute tremendously to make a forage production base for livestock farms.