• The Journal of the Korea Contents Association
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• v.21 no.11
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• pp.490-502
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• 2021

Horticultural facility farmers subscribe to crop accident insurance and insurance products secured by horticultural facilities in preparation for possible risks in the facility. Insurance is purchased to prepare for natural disasters such as typhoons, hail, frostbite, heavy rain, and strong wind damage covered by the product. In order to find out the effect of risk perception, which is a subjective perception of the risks of a given situation, on horticultural facility farmers' intention to purchase horticultural facility insurance products, the risk perception and insurance purchase intention were analyzed. A t-test was conducted to determine the impact relationship between farm size, insurance coverage, and risk perception, and multiple regression analysis was conducted to verify the effect of personal characteristics and behavioral factors such as subjective perception, reference group, media exposure, and compensation understanding. In addition, a three-step regression analysis by Baron & Kenny was conducted to confirm the mediating role of personal characteristics and behavioral factors in the relationship between risk perception and insurance purchase intention. As a result of the study, although there was no difference in farm size, it was analyzed that policy holders had a higher degree of risk perception than non-subscribers, and that compensation understanding had the greatest influence and subjective knowledge had the smallest influence. In addition, these four factors were verified to have a mediating effect on the relationship between risk perception and insurance purchase intention. These results are expected to provide practical help to the development and marketing activities of horticultural facility insurance products.

• Journal of Animal Environmental Science
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• v.20 no.4
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• pp.161-166
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• 2014

We conducted investigations of the information and welfare of cattle in Korea. The livestock housing of conventional cattle farms and organic cattle farms were open side wall type with winch curtain and used litter floor. The stocking density of conventional (ranging from $10head/m^2$ to $12.5head/m^2$) and organic cattle farms (ranging from $10head/m^2$ to $16.7head/m^2$) met the demand for conventional or organic standards, respectively. The galvanized plate and sunlight plate were used as the roof material in all of farms. Especially, additional areas were provided to produce forage or to improve animal welfare in organic cattle farms. Thus we believe that present data contribute to develop the animal welfare certification for cattle and to improve animal welfare in Korea.

• Korean Journal of Organic Agriculture
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• v.21 no.4
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• pp.617-627
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• 2013

This study was conducted to survey the current pest occurrence and grower's pest management practices, and to investigate biodiversity including birds, snakes, rodents, and amphibians in organic pear orchards. From the questionnaires and field survey of 22 organic orchards in 2010, the materials such as lime sulphur, plant extracts and their mixtures with microorganisms, and oils were preferred over insecticides. Scab, mealybugs, woollybugs and barkminers were the major pests for organic pear growers. Environment-friendly fungicides and insecticides were applied 9 to 10 and 5 to 6 times respectively. Incidence and severity of scab on Niitaka pear fruits in organic orchards was higher than in conventional ones. Whereas for mealybugs there was no significant difference between organic and conventional orchards. Pear fruits in organic orchards were significantly smaller than those of non-organic orchards. For the biodiversity of amphibians, snakes, pheasants, and rodents, there was no significant difference between organic and conventional orchards, but Rufous turtle doves were monitored more in organic areas than in conventional ones.

• Environmental and Resource Economics Review
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• v.15 no.1
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• pp.1-26
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• 2006

This paper explores the relatilonship between state level environmental regulations and stocking and location decisions in the U.S livestock and poultry industry (beef, chicken, dairy and hogs), Rather than conduct this analysis on a species by species basis, the overall size of the livestock industry(expressed in animal units) and the size of Industry found on large, medium and small operations by state (48) and over time (29 years), which is panel data analysis, Generally, regulations seem to be induced by the structural change of industry; when industry creates externalities, regulators try to address them with policy tools to internalize them, Written regulatory stringency may not effect behavioral change; rather the state's willingness to enforce regulations seems to have a measurable influence. However, in the presence of rapid structural change, industry location is affected by written regulatory stringency. Policy enforcement activity was shown to influence inventory decisions in general and larger operations were found to be more sensitive to willingness to enforce than smaller operations.

• Korean Journal of Organic Agriculture
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• v.18 no.2
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• pp.257-269
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• 2010

To investigate the possibility of discrimination between organic and non-organic rice using stable isotope nitrogen of natural abundance, organic rice of 17 samples and non-organic rice of 13 samples grown at adjoining organic rice field were collected in 2008. Rice was grinded into brown rice, milled rice and hull, and samples were analysed for nitrogen and $\delta^{15}N$ at NICEM. Authors also made inquiries about N source for both farmers who conduct organic- and non-organic rice cultivation. In order to know whether the $\delta^{15}N$ can be used in discrimination between organic and non-organic rice, discriminant analysis were made with SPSS and logistic method. 1. Organic farmers used manure, rice bran, used mushroom culture, fermented fertilizer (company products), and oil cake, but non-organic farmers applied compound fertilizer. Rice straws were remained in organic rice field while moved out in non-organic field. 2. There were difference in $\delta^{15}N$ among organic rice and its byproduct(7.760????% in hull, 6.720????% in rice), but significant difference was not found between them. And the trend was same between province. Non-organic rice showed similar results. 3. Significant difference of $\delta^{15}N$ were found between organic rice and non-organic rice (p<0.01) and between hull of organic rice and that of non-organic rice hull (p<0.05). $\delta^{15}N$ seemed to be useful criteria for discrimination of organic and non-organic rice. 4. When applied discrimination analysis of SPSS and logistic, there were significant difference between organic rice, non-organic rice and its byproducts except brown rice and hull in SPSS method. Hull can be used as the most useful component for unknown sample prediction with 83.3% probability.

• Korean Journal of Agricultural Science
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• v.8 no.2
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• pp.203-211
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• 1981

Mechanization of rice transplanting operation is very important project not only to solve the labor shortage problem at the so-called labor demand peak seasons of the rice transplanting, but also to reduce the production cost of rice by reducing the labor requirements. For these reasons this study was carried out to find the basic data for encourage the project of mechanization of rice transplanting. 381 sample farms were surveyed with questionaries and interviewed with a considerable number of relative personels about the operation, selecting and ownership trend of the rice transplanter. Collected data was analized by computer of Chungnam National University computer center applied to frequencies, cross- tabulation, $x^2$-test. The analized results of this survey are summarized as follows; 1. About 76.09% of the farmers interviewed was individual ownership of rice transplanter but about 52.27% of the farmers who wanted to purchase it in 2 or 3 years supported the cooperative ownership and utilization. This fact suggested that cooperative system of village level should be thoroghly studied. 2. The 93.33% of respondents gave the answer that the yield of rice was not affected by the planting methods between machine and manual. 3. The farmers who had a rice transplanter owned 4- row type rice transplanter with mat type seedling but the 25% of the farmers wanted to purchase it in 2 or 3 years wanted to own a 4 row type rice transplanter with band type seedling. Therefore the introduction of the 4-row type rice transplanter with band type seedling to rural area should be considered again. 4. The percent of farmers who wanted the cooperative system of village level was 49.57-57.83% of the farmers who had it already and wanted to own it in near future. It was strengthened by this fact that seedling nursely work was technically supported by the governmental level.

• Current Research on Agriculture and Life Sciences
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• v.9
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• pp.37-49
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• 1991

This study was conducted to estimate the effects of year, age of dam at calving, farm and lactation period on milk yield with the data of 4,008 cows' records which were collected at 32 farms by Korea Animal Improvement Association from 1985 to 1989. The results obtained in this study are summarized as follows: 1. The average performance of the dairy cattle in the study were $5,959.23{\pm}2,113.03kg$ in actual milk yield, $49.19{\pm}22.77$ months in age of dam at calving, $27.11{\pm}5.13$ months in age at first calving and $255.11{\pm}79.68$ days in lactation period. 2. The percentages of variance component for different sources were 29.39% for the residuals, 1.91% for years, 4.86% for age at calving, 8.89% for farms and 54.94% for lactation period. 3. The overall mean of least-square estimate on the milk yield was 6,229.31kg. In the effects of year, the least-square means of milk yield were estimated 6,000.76kg in 1985-1987, 6,028.11kg in 1988 and 6,659.07kg in 1989. 4. The least-square means of calving age on the milk yield were estimated 5,456.01kg in less than 24 months, 6,565.48kg in 61-66 months which were the highest least-square means. This effects were gradually increased until the 61-66months and gradually decreased after the 61-66months, with highly significant differences among different months of age at calving(p<0.01). 5. In the effects of farm, the least-square means of milk yield were estimated 4,959.50 kg in the lowest farm and 7,497.07kg in the highest farm. Among the milk yield of each farm the effects showed highly significant difference(p<0.01). 6. The least-square means of milk yield in the effects of lactation period were gradually increased with the lapse of the lactation period. Among the lactation period the effects showed highly significant difference(p<0.01).

• Journal of Agricultural Extension & Community Development
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• v.9 no.1
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• pp.131-145
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• 2002

국제연합에서는 $15{\sim}24$세의 젊은이를 청소년이라고 정의하고 있는데 그 중에서도 특히 농촌청소년은 미래 농촌발전의 핵심주체라 할 것이다. 일반적으로 농촌청소년은 그들 부모세대보다 더 높은 교육수준과 도전의식 그리고 더 높은 창의성을 지니고 있기 때문이다. 더욱이 그들은 미래가 자신의 장래와 직접적으로 연결되어 있기 때문에 장기적인 전망, 미래의 비전에 관심이 크다. 청소년에 대한 교육은 민주사회의 미래에서 한 사회가 할 수 있는 가장 중요한 투자 중의 하나라고 인식되며 현재 진행되고 있는 고도의 경쟁적인 시장경제로의 진입에서 청소년의 사회경제적 비전을 향상시키기 위해서는 교육과 훈련의 질적 양적 향상이 최우선시 되어야 할 것이다. 세계무역기구 출범 이후 농산물 수출국가와 선진국에서의 소득균형은 일반적으로 향상되었으나 순식량 수입국가나 개발도상국가에서는 소득균형이 더 악화되고 농업영역의 쇠퇴를 초래하고 있는 부작용이 국제연합 식량농업기구 등의 분석이다. 더욱이 식량안전상황은 농산물의 급격한 수입으로 여전히 불안하고 농가 판매의 지속적인 악화, 농촌과 도시간의 소득격차가 큰 것으로 나타났다. 특히 인간의 건강과 환경에 유해한 유전자조작 농산물 (GMO)의 교역은 소비자의 식품안전과 잠재적 위해 때문에 합당한 조치가 요구되고 있는 실정이다. 이러한 상황에서 농업교육, 연구 그리고 지도, 특히 아시아의 주요작물 영역에 대한 더 많은 투자가 필요하며 많은 아시아국가들에서 우선적으로 요구되는 농촌 청소년교육은 빈곤퇴치, 식량의 안정적 공급 및 식품의 안전 그리고 지속적이고 균형있는 농촌개발 등이다. 이를 위한 정부와 국민, 특히 농촌 청소년들의 연결망을 통해 함께 협력해야 빈곤퇴치와 식량의 안정적 공급 및 식품의 안전 등 농촌의 사회경제적 발전이 가능할 것이다. 이 연구에서는 아시아지역 농촌사회 및 식량농업의 발전을 위한 청소년 연결망을 예시적으로 검토하고 미래사회에서의 협력을 위한 접근을 탐색하였다.국제연합에서는 $15{\sim}24$세의 젊은이를 청소년이라고 정의하고 있는데 그 중에서도 특히 농촌청소년은 미래 농촌발전의 핵심주체라 할 것이다. 일반적으로 농촌청소년은 그들 부모세대보다 더 높은 교육수준과 도전의식 그리고 더 높은 창의성을 지니고 있기 때문이다. 더욱이 그들은 미래가 자신의 장래와 직접적으로 연결되어 있기 때문에 장기적인 전망, 미래의 비전에 관심이 크다. 청소년에 대한 교육은 민주사회의 미래에서 한 사회가 할 수 있는 가장 중요한 투자 중의 하나라고 인식되며 현재 진행되고 있는 고도의 경쟁적인 시장경제로의 진입에서 청소년의 사회경제적 비전을 향상시키기 위해서는 교육과 훈련의 질적 양적 향상이 최우선시 되어야 할 것이다. 세계무역기구 출범 이후 농산물 수출국가와 선진국에서의 소득균형은 일반적으로 향상되었으나 순식량 수입국가나 개발도상국가에서는 소득균형이 더 악화되고 농업영역의 쇠퇴를 초래하고 있는 부작용이 국제연합 식량농업기구 등의 분석이다. 더욱이 식량안전상황은 농산물의 급격한 수입으로 여전히 불안하고 농가 판매의 지속적인 악화, 농촌과 도시간의 소득격차가 큰 것으로 나타났다. 특히 인간의 건강과 환경에 유해한 유전자조작 농산물 (GMO)의 교역은 소비자의 식품안전과 잠재적 위해 때문에 합당한 조치가 요구되고 있는 실정이다. 이러한 상황에서 농업교육, 연구 그리고 지도, 특히 아시아의 주요작물 영역에 대한 더 많은 투자가 필요하며 많은 아시아국가들에서 우선적으로 요구되는 농촌 청소년교육은 빈곤퇴치, 식량의 안정적 공급 및 식품의 안전 그리고 지속적이고 균형있는 농촌개발 등이다. 이를 위한 정부와 국민, 특히 농촌 청소년들의 연결망을 통해 함께 협력해야 빈곤퇴치와 식량의 안정적 공급 및 식품의 안전 등 농촌의 사회경제적 발전이 가능할 것이다. 이 연구에서는 아시아지역 농촌사회 및 식량농업의 발전을 위한 청소년 연결망을 예시적으로 검토하고 미래사회에서의 협력을 위한 접근을 탐색하였다.

• Korean Journal of Soil Science and Fertilizer
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• v.45 no.6
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• pp.1004-1008
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• 2012

The importance of environment-friendly agriculture is being magnified as a new growth engine industry in pursuit of low carbon, green growth policies. Since 2010, the Korean government has been promoting the supply of customized fertilizers which were manufactured based on chemical properties of agricultural soils. This aims focused to improve the efficiency of fertilizer used and to protect the agricultural environment. In order to provide technical supports for pushing ahead with the environment-friendly agriculture policies, we have estimated the effects of customized fertilization (CF) on growth and yield of rice and fertilizer reduction compared to conventional fertilization (farm practice fertilization) and single-element fertilization. In rice plant growth and rice yield, no statistically significant difference between the three fertilization treatments was observed. The fertilizer reduction rate with CF compared to conventional fertilization of investigated farms was on average 17%, which covered 6% through 33%. With split ratio, CF 70 reduced the amounts of fertilizer ingredient by 5% compare to CF 50. This paper shows that the customized fertilizer application reduced the amounts of fertilizer used in rice cultivation without decrease of yields.

• Journal of Life Science
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• v.27 no.6
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• pp.702-707
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• 2017

Insects and their extract have been traditionally used as medicinal resources in Asia. Recently, Gryllus bimaculatus and the larva of Tenebrio molitor, Protaetia brevitarsis, and Allomyrina dichotoma were enlisted as general food ingredients by Korean Ministry of Food and Drug Safety. As the interest in these insects is growing, the detailed investigation is needed for the standardization of suitable and safe rearing techniques. This survey was conducted via personal interviews about edible insect rearing farms in Korea. The basic feed is fermented oak sawdust for P. brevitarsis and A. dichotoma and wheat bran for T. molitor. The various feed additives are blended with each farm's own recipes. The overall growth condition, including sawdust fermentation method, feeding period, and rearing density, varies among the investigated farms. It seems that weight of last instar larva was correlated with the rearing density and duration of the larval period. The heavy metal contents were analyzed after 48 hour starvation and they were very small amount or not detected in investigated insects. We believe that the present data will contribute to develop and standardize the safe rearing techniques of edible insects in Korea.