Journal of the Japanese Society of Agricultural Technology Management
Online ISSN : 2424-2403
Print ISSN : 1341-0156
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Volume 19, Issue 4
Displaying 1-4 of 4 articles from this issue
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  • The Modification of Planting Unit in Multi-Row Semi-Automatic Transplanter for Vegetable Seedling
    Koji YAMAURA, Noriaki TAKATA, Kazuo NAITO
    Article type: Article
    2013 Volume 19 Issue 4 Pages 119-124
    Published: March 15, 2013
    Released on J-STAGE: April 11, 2019
    DOIhttps://doi.org/10.20809/seisan.19.4_119
    JOURNAL FREE ACCESS
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    Semi-automatic transplanter (multi-row type for vegetable seedling) was developed by authors in 2003, and commercialized. In this study, we modified planting unit of the transplanter to improve accuracy, and investigated its performance. Results were as follows. The reformed transplanting unit was characterized by being handled with newly installed hinge lever instead of conventional hook method for opening and shutting of transplanting cups. Transplanting experiments in lettuce field were performed on the conditions that surface harnesses of ridge were both 22.7 kPa and 48.1 kPa, soil pulverization rate was 61.8 %, and soil water content by volume was 29.1 % (0〜5cm in depth) . The success rate of transplanting by the reformed unit was 98.8〜100 %, which was higher than by the conventional unit 66.3〜99.8 % , and also the transplanting depth became more stable.
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  • The Poverty Alleviation and the Development Factor of the Farm Village Microfinance Organization in China : A Case Study about Yan Chi Micro-Finance Center in NingXia
    Haitao LIU, Kenji TANIGUCHI, Wei ZHENG, Yoshihito ITOHARA
    Article type: Article
    2013 Volume 19 Issue 4 Pages 125-133
    Published: March 15, 2013
    Released on J-STAGE: April 11, 2019
    DOIhttps://doi.org/10.20809/seisan.19.4_125
    JOURNAL FREE ACCESS
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    The study is about micro-finance institutions with the function of poverty alleviation in China. The objective is to figure out how these micro-finance institutions eventually achieve sustainable operations. We have summarized the findings as followed after thorough research in Yan Chi Micro-Finance Center in Ningxia. First, Micro-credit risk that was caused by the information asymmetry would be potentially greatly reduced by combining financial service with production activities and living. Second, it is an effective way to lower operating expenses that via restructuring decentralized farmers to relatively bigger-scale transaction units which are more relevant to their organizational forms.
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  • Changes in Sugar, Amino Acid, Ascorbic Acid, and β-Carotene Contents in a Fruit of 'Prince' Melon at Different Harvest Times
    Kensuke KONDO, Kazufumi ZUSHI, Takahiro WAJIMA, Takehito SHIRAMIZU, Ta ...
    Article type: Article
    2013 Volume 19 Issue 4 Pages 135-141
    Published: March 15, 2013
    Released on J-STAGE: April 11, 2019
    DOIhttps://doi.org/10.20809/seisan.19.4_135
    JOURNAL FREE ACCESS
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    To gain basic knowledge for the production of stable-quality 'Prince' melon, the influence of harvest time on fruit content was investigated in 2005 and 2006. Soluble solid concentration and sucrose, fructose, glucose, and alanine contents were stable in melon fruits harvested in 2005; however, contents in melon fruits harvested in 2006 differed, suggesting a tendency for variation according to year. In addition, the contents of ascorbic acid and β-carotene varied by harvest season for both years. Furthermore, contents of ascorbic acid and β-carotene in fruit harvested in 2006 were less than in melons harvested in 2005, suggesting the influence of weather conditions during cultivation.
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  • A Study on Mobile Phone Dependence and Diet Behavior among High School Students
    Yoshie KOMEYAMA, Akira ISHIDA, Hisako MATSUMOTO, Shigeki YOKOYAMA
    Article type: Article
    2013 Volume 19 Issue 4 Pages 143-149
    Published: March 15, 2013
    Released on J-STAGE: April 11, 2019
    DOIhttps://doi.org/10.20809/seisan.19.4_143
    JOURNAL FREE ACCESS
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    This article clarifies the impact of mobile phone dependence on diet behavior of high school students using individual survey data conducted by Benesse Educational Development Center in 2004. The quantitative results from factor analysis, chi-square test and covariance structure analysis, reveal that both using cell-phone and psychological dependence on mobile phone contribute to diet problem. Moreover it is found that unstable relationships with friends result in increasing psychological dependence on mobile phone to a large extent, suggesting that forging self-identity is likely to be an effective measure to prevent high school students from heavily depending on mobile phone. The study also concludes that the impact of mobile phone dependence have a slightly higher impact on girls than boys.
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