• Title/Summary/Keyword: 무의 농촌

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An Imputation for Nonresponses in the Survey on the Rural Living Indicators (농촌생활지표조사에서 무응답 대체 : 사례)

  • Cho, Young-Sook;Chun, Young-Min;Hwang, Dae-Yong
    • The Korean Journal of Applied Statistics
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    • v.21 no.1
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    • pp.95-107
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    • 2008
  • Survey on the rural living indicators was the statistic approved from National Statistical Office and the survey executed by rural resources development institute. This study was used the raw data of survey on the rural living indicators in 2005. After editing procedure for raw data, we were studied 1,582 households which is acquired through elimination of case included nonresponses, and imputed a nonresponses of 15 item selected from 146 item. The imputation methods and efficiency of imputation for simulation was adapted differently from type of data. For continuous data, we imputed the nonresponses with mean imputation, regression imputation, adjusted grey-based k-NN imputation(DU, DW, WU, WW) and compared the results with RMSE. For categorical data, we imputed the nonresponses with mode method, probability imputation, conditional mode method, conditional probability method, hot-deck imputation, and compared the results with Accuracy. By the results, regression imputation and adjusted grey-based k-NN imputation appropriated for continuous data and hot-deck imputation appropriated for categorical data.

Effects of Early Planting and Polyethylene Mulch on Soil for Early Maturing Soybean in Kyeonggi Area (경기지역에서 대두콩에 대한 피복재배효과)

  • Song, Su-Hyeun;Kim, Sung-Ki;Park, Kyeong-Yeol;Kim, Byeong-Hyeon;Ree, Dong-Woo
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.32 no.1
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    • pp.112-118
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    • 1987
  • This study was carried out to investigate the effects of early planting and polyethylene film (P.E) mulch on early maturing soybean of Korean native cultivar Kyeonggi No. 114 in the Kyeonggi area. It was planted four times at the ten days interval from April I to April 30 in 1985 and 1986. The average soil temperature was 1-5$^{\circ}C$ higher under the polyethylene film mulch condition than the conventional cultural practice condition. Soil moisture content also was higher under P.E mulch condition. Days to emergence was shortened 5-16 days and days to flowering was shortened 3-5 days. The fresh pod yield was increased 12% more at the planting date of April 1 and April 10. Income was increased 70, 83, more at the planting date of April 1 and April 10 under the polyethylene mm mulch conditions.

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Varietal Differences on Growth Characteristics of Direct-sown Rice under No-tillage Paddy Field (남부지방의 벼 무경운 직파재배에서 품종간 생육특성 비교)

  • Hong, Kwang-Pyo;Kim, Jang-Yong;Kang, Dong-Ju;Shin, Won-Kyo;Choe, Zhin-Ryong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.41 no.5
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    • pp.551-557
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    • 1996
  • In order to establish a labour-saved and environment friendly paddy rice system in southern Korea, no-tillage paddy system was proposed and investigated from 1992 to 1993. Basically this system includes a complete return of crop residules into the soil, and zero-tillage. In an effort to minimize labour requirement in rice farming, several cultivars were directly sown and grown under the system and the characteristics of the growth and yield potential of the cultivars were compared with those grown in an ordinary paddy soil. Joryeongbyeo, Dongjinbyeo, Daeyabyeo and Calose rices showed high level of seedling establishment in the no-tillage padddy system. However, the value was significantly lower than in those of the cultivars direct-sown in an ordinary tillage paddy condition. The rice direct-sown and grown under the no-tillage paddy system showed significantly decreased number of tillers per square meter and plant height, but increased ripened grains. The lodging-related characteristics of rice plant, such as band breaking weight, the length of top 3rd ∼4th internodes, the height of weight center, and lodging index, were observed positive aspects in cultivars such as Hwasungbyeo, Hwayongbyeo, Joryeongbyeo, Calose and Calose 76 and being considered adaptable to direct-sown under the no-tillage paddy system.

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Studies on the Improvement of RiceCultivation in the Ill-drained Paddy Field II. The Effects of Fertilizations and Planting Densities on Growth and Yield of Ricein the Underchannel Drainage (습답도작기술향상에 관한 연구 제2보 지하수가 시비량과 재배밀도를 달리한 수도의 생육 및 수량에 미치는 영향)

  • Goo, Y.S.;Nho, S.P.;Whang, C.J.;Nha, J.S.;Lee, J.B.;Jung, J.Y.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.21 no.1
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    • pp.43-51
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    • 1976
  • Marine deposite soil was studied to evaluate morohological changes of paddy rice under subdrainage control. The content of organic and inorganic mate rial were low at high temperature in the mid-summer. This soil lacked air and accumulated more H$_2$ S. Thus rice root was rotted with high infection of virus and insect and yield was relatively low.

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Elderly women's Health Care Experience at Doctorless Farm Willages (무의 농촌지역 여성노인의 건강관리 경험)

  • Kim, Young-Hee;Han, Young-Ran
    • Women's Health Nursing
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    • v.9 no.4
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    • pp.467-478
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    • 2003
  • Purpose: This study investigated elderly women's health care at doctorless farm villages based on information-about the perception and management of their health. Method: Grounded theory method as mapped out by Strauss and Corbin-was used to record and transcribe open-ended interviews. The data from these interviews were analyzed. Result: We found 18 categories and 28 sub-categories. In data analysis, the core phenomenon was named "movement in pain". Causal condition as essential prerequisites were aging symptoms, bad state of health, comfortable life to live alone, longevity, deficiency of health care resources, and sub-categories of the phenomena revealed acceptance of discomfort, enduring pain, continuity of movability. Elderly women's health-related activities included enduring as it is, movement consciously, applying resources, difficult in using health medical institutions. Family support, economic level, disease condition, support system of community were influenced to their health-related activities. Consequently, the results indicated that they wanted to accept given life, expected easy death. held out remaining life. Conclusion: This study revealed that the most important factor of elderly women's health care was "movement in pain". On the basis of this study, we needed to develop diverse nursing implementation plans for maintaining and improving' movability without pain'.

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