{"_buckets": {"deposit": "bd1580bb-feee-48ee-9fa2-00e0a49587b9"}, "_deposit": {"id": "2002829", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2002829"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02002829", "sets": ["1642837918448", "1642838407312"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "\u7409\u7403\u5217\u5cf6\u306e\u30b5\u30c8\u30a6\u30ad\u30d3\u7551\u306b\u304a\u3051\u308b\u96d1\u8349\u306e\u751f\u7406\u30fb\u751f\u614b : \u7b2c 13 \u5831 \u30cf\u30a4\u30ad\u30d3 (Panicum repens L.) \u306e\u9664\u8349\u6642\u671f\u304c\u30b5\u30c8\u30a6\u30ad\u30d3\u306e\u521d\u671f\u751f\u80b2\u306b\u53ca\u307c\u3059\u5f71\u97ff(\u9644\u5c5e\u8fb2\u5834)", "subitem_1551255648112": "ja"}, {"subitem_1551255647225": "Physiological and Ecological Characteristics of Sugarcane Field Weeds in the Ryukyu Islands : 13. Effect of Weeding time of Torpedo grass (Panicum repens L.) on Early Stage of Sugarcane Growth (Agricultural Experiment Station)", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "\u77f3\u5dba, \u884c\u7537", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u30db\u30b5\u30a4\u30f3, M. A.", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u672c\u6751, \u6075\u4e8c", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u8d64\u5dba, \u5149", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u6751\u5c71, \u76db\u4e00", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u53e4\u8b1d, \u745e\u5e78", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "Ishimine, Yukio", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hossain, M. A.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Motomura, Keiji", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Akamine, Hikaru", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Murayama, Seiichi", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Koja, Zuiko", "creatorNameLang": "en"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "\u71b1\u5e2f\u30fb\u4e9c\u71b1\u5e2f\u5730\u57df\u306e\u7551\u5730\u306b\u307f\u3089\u308c\u308b\u30a4\u30cd\u79d1\u591a\u5e74\u751f\u96d1\u8349\u30cf\u30a4\u30ad\u30d3\u306f,\u5730\u4e0b\u830e\u306b\u3088\u3063\u3066\u65fa\u76db\u306b\u7e41\u6b96\u3057,\u7551\u5730\u306b\u7fa4\u843d\u3092\u5f62\u6210\u3059\u308b\u3053\u3068\u304b\u3089,\u8fb2\u4f5c\u7269\u3078\u4e0e\u3048\u308b\u5f71\u97ff\u304c\u5927\u304d\u3044\u3002\u672c\u5831\u3067\u306f,\u30cf\u30a4\u30ad\u30d3\u306e\u9664\u8349\u6642\u671f\u304c\u30b5\u30c8\u30a6\u30ad\u30d3\u306e\u521d\u671f\u751f\u80b2\u306b\u53ca\u307c\u3059\u5f71\u97ff\u306b\u3064\u3044\u3066\u8abf\u3079,\u30b5\u30c8\u30a6\u30ad\u30d3\u7551\u306b\u304a\u3051\u308b\u30cf\u30a4\u30ad\u30d3\u306e\u5408\u7406\u7684\u306a\u9664\u8349\u6642\u671f\u3092\u691c\u8a0e\u3057\u305f\u3002\u5b9f\u9a13\u306f,1/2000a\u30ef\u30b0\u30cd\u30eb\u30dd\u30c3\u30c8\u306e\u4e2d\u592e\u306b\u3044\u305a\u308c\u3082\u4e00\u7bc0\u82d7\u306b\u63c3\u3048\u305f\u30b5\u30c8\u30a6\u30ad\u30d3(\u54c1\u7a2e : F-160)\u3092\u690d\u3048,\u305d\u306e\u56de\u308a\u306b\u4e8c\u7bc0\u82d7\u306b\u8abf\u6574\u3057\u305f\u30cf\u30a4\u30ad\u30d3\u306e\u5730\u4e0b\u830e\u3092\u305d\u308c\u305e\u308c2\u672c\u690d\u3048,4\u672c\u690d\u3048,8\u672c\u690d\u3048\u3057,\u3055\u3089\u306b,\u305d\u308c\u305e\u308c\u3092\u690d\u4ed8\u65e5\u304b\u308930\u65e5\u76ee\u9664\u8349\u533a(30DAP),60\u65e5\u76ee\u9664\u8349\u533a(60DAP),120\u65e5\u76ee\u9664\u8349\u533a(120DAP)\u53ca\u3073\u7121\u9664\u8349\u533a\u306b\u5206\u3051\u5b9f\u65bd\u3057\u305f\u3002\u5bfe\u7167\u533a\u3068\u3057\u3066\u306f\u30b5\u30c8\u30a6\u30ad\u30d3,\u30cf\u30a4\u30ad\u30d3\u305d\u308c\u305e\u308c\u306e\u5358\u690d\u533a\u3092\u8a2d\u3051\u305f\u3002\u8abf\u67fb\u306f,\u690d\u4ed8\u65e5\u304b\u308930\u65e5\u6bce\u306b210\u65e5\u76ee\u307e\u3067\u30b5\u30c8\u30a6\u30ad\u30d3\u306e\u8349\u4e08,\u830e\u9577,\u830e\u5f84,\u5206\u3052\u3064\u6570,\u30cf\u30a4\u30ad\u30d3\u306e\u8349\u4e08,\u5206\u3052\u3064\u6570\u3092\u8a087\u56de\u6e2c\u5b9a\u3057\u305f\u3002\u307e\u305f,\u6700\u7d42\u8abf\u67fb\u65e5\u306e210\u65e5\u76ee\u306b\u306f\u5800\u308a\u53d6\u308a\u8abf\u67fb\u3092\u884c\u3044,\u30b5\u30c8\u30a6\u30ad\u30d3\u306e\u830e\u91cd,\u6839\u91cd,\u8449\u9762\u7a4d,\u30cf\u30a4\u30ad\u30d3\u306e\u5730\u4e0a\u90e8\u91cd,\u6839\u91cd\u3092\u6e2c\u5b9a\u3057,\u3055\u3089\u306b\u9664\u8349\u533a\u306e\u4e2d\u3067,\u6df7\u690d\u3057\u3066\u3044\u305f\u9593\u306b\u5f62\u6210\u3055\u308c\u305f\u30cf\u30a4\u30ad\u30d3\u306e\u5730\u4e0b\u830e\u6b8b\u5b58\u306e\u6709\u7121\u3092\u8abf\u3079\u305f\u3002\u305d\u306e\u7d50\u679c,\u8349\u4e08\u306e\u751f\u9577\u901f\u5ea6\u306e\u6025\u901f\u306a\u5897\u52a0\u306f\u30b5\u30c8\u30a6\u30ad\u30d3\u3067\u306f\u690d\u4ed8\u5f8c60\u0026acd;90\u65e5\u306e\u9593\u306b\u898b\u3089\u308c(Fig.1),\u30cf\u30a4\u30ad\u30d3\u3067\u306f120\u65e5\u307e\u3067\u306e\u9593\u306b\u9ad8\u3044\u5024\u3092\u793a\u3057\u305f(Fig.2)\u3002\u307e\u305f\u4e21\u8005\u3068\u3082150\u65e5\u307e\u3067\u8349\u4e08\u306e\u4f38\u9577\u304c\u9ad8\u304f,\u305d\u306e\u5f8c\u306f\u3086\u308b\u3084\u304b\u306a\u4f38\u9577\u3092\u793a\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u3053\u3068\u304b\u3089,\u4e21\u8005\u9593\u306e\u990a\u5206\u7af6\u5408\u304c\u690d\u4ed8\u5f8c150\u65e5\u307e\u3067\u306e\u671f\u9593\u306b\u8d77\u3053\u308b\u3053\u3068\u304c\u8003\u3048\u3089\u308c\u308b\u3002\u307e\u305f,\u30b5\u30c8\u30a6\u30ad\u30d3\u306e\u5206\u3052\u3064\u306f,\u3044\u305a\u308c\u306e\u533a\u306b\u304a\u3044\u3066\u3082\u9664\u8349\u524d\u306b\u306f\u898b\u3089\u308c\u306a\u304b\u3063\u305f\u304c,\u9664\u8349\u5f8c\u306b\u898b\u3089\u308c\u305f(Fig.3)\u3002\u3057\u305f\u304c\u3063\u3066\u30cf\u30a4\u30ad\u30d3\u304c\u30b5\u30c8\u30a6\u30ad\u30d3\u306e\u5206\u3052\u3064\u3092\u6291\u5236\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u63a8\u5bdf\u3055\u308c\u305f\u3002\u3055\u3089\u306b,\u6700\u7d42\u8abf\u67fb\u306e\u7d50\u679c,\u9664\u8349\u6642\u671f\u304c\u9045\u5ef6\u3059\u308b\u306b\u3057\u305f\u304c\u3063\u3066,\u30b5\u30c8\u30a6\u30ad\u30d3\u306e\u830e\u9577,\u830e\u5f84,\u830e\u91cd,\u6839\u91cd\u306f\u8457\u3057\u304f\u6e1b\u5c11\u3057\u305f(Table 4)\u3002\u307e\u305f,\u7121\u9664\u8349\u533a\u306e\u53ce\u91cf(\u830e\u91cd)\u306f\u30b5\u30c8\u30a6\u30ad\u30d3\u5358\u690d\u533a\u306b\u6bd4\u307970%\u6e1b\u5c11\u3068\u3044\u3046\u5927\u304d\u306a\u6570\u5024\u3092\u793a\u3057\u305f(Fig.4)\u3002\u4e00\u65b9,\u9664\u8349\u5f8c\u306b\u30cf\u30a4\u30ad\u30d3\u306e\u5730\u4e0b\u830e\u304c\u6b8b\u5b58\u3057\u3066\u3044\u308b\u30dd\u30c3\u30c8\u306e\u5272\u5408\u306f,30DAP\u3067\u306f0%,60DAP\u3067\u306f13%,120DAP\u3067\u306f100%\u3067\u3042\u3063\u305f\u3053\u3068\u304b\u3089,\u30cf\u30a4\u30ad\u30d3\u306e\u5730\u4e0b\u830e\u306f\u690d\u4ed8\u65e5\u304b\u308930\u65e5\u4ee5\u964d\u306b\u5f62\u6210\u3055\u308c\u308b\u3068\u8003\u3048\u3089\u308c\u308b\u3002\u3053\u308c\u3089\u306e\u5b9f\u9a13\u306e\u7d50\u679c\u306b\u3088\u308a,\u30b5\u30c8\u30a6\u30ad\u30d3\u306e\u751f\u80b2\u3078\u306e\u5f71\u97ff\u304a\u3088\u3073\u9664\u8349\u52b9\u679c\u3092\u8003\u616e\u3057\u3066\u30cf\u30a4\u30ad\u30d3\u306e\u9664\u8349\u6642\u671f\u3092\u691c\u8a0e\u3059\u308b\u3068,\u30b5\u30c8\u30a6\u30ad\u30d3\u306e\u53ce\u91cf\u5f62\u8cea\u306e\u6e1b\u5c11\u304c30\u65e5\u304b\u3089\u6b21\u7b2c\u306b\u5897\u304860\u65e5\u4ee5\u964d\u5927\u304d\u304f\u306a\u308b\u3053\u3068\u304b\u3089,\u30cf\u30a4\u30ad\u30d32\u672c\u690d\u3048,4\u672c\u690d\u3048,8\u672c\u690d\u3048\u306e\u3044\u305a\u308c\u306e\u533a\u306b\u304a\u3044\u3066\u3082,\u690d\u4ed8\u5f8c30\u304b\u308960\u65e5\u4ee5\u5185\u306e\u9664\u8349\u304c\u9069\u5207\u3068\u601d\u308f\u308c\u308b\u3002", "subitem_description_type": "Other"}, {"subitem_description": "A glass house pot experiment consisted of six treatments. For treatment A, only one cane sett was planted in each pot. For treatment B, one pot was planted one cane sett and two weed cuttings, one pot was planted one cane sett and four weed cuttings, and one pot was planted one cane sett and eight weed cuttings with five replications. Same procedure was done for the treatments C, D and E. For the treatment F, only one weed cutting was planted in each pot. The experiment was carried out from 18th May to 23rd December. 1992,at the experimental farm, College of Agriculture, University of the Ryukyus to study the effect of weeding time of Torpedo grass on early stage of sugarcane growth to determine the proper weeding time of this weed infested sugarcane field. Dark redish soil of pH 5.25-6.74,two-noded sprouted rhizome of Torpedo grass, one-eyed sugarcane sett (F-160), compound fertilizer (N : P : K=2.6 : 2.0 : 2.8), wagner pot (1/2000a), organic phosphorus pesticide were used in the experiment. The results were summarized as follows : 1. Early stage of sugarcane was up to 150 days after planting (DAP) and its elongation rate was increased fastly from 60-90 DAP. On the other hand, Torpedo grass was increased up to 150 DAP, but increasing was occured very sharply up to 120 DAP, it\u0027s tiller increasing rate was highest from 30-60 DAP. So high competition was occured up to 150 DAP between sugarcane and Torpedo grass in absorption of plant nutrient. 2. Before weeding, cane growth was almost stunted and no tiller was come out for the loose mat forming rhizome of the said weed. Early weeding always gave higher plant length and early tillers as the period of weeding was prolonged that is reflected more survaival of tillers and cane formation, ultimately resulted in higher cane yield/unit area. 3. Stalk lenght, stalk diameter, stalk fresh (yield) weight, dry weight of stalk, dry weight of green leaf and dry weight of root were highest in the weed free cane and lowest in the unweeded cane. Weeding showed good effect on the yield parameters of cane. Early weeding increased yield cotributing parameters as the weeding was prolonged that ultimate resulted in higher cane yield/unit area. Torpedo grass decreased 65-80% sugarcane yield compared to pure cane. On the other hand, weeding increased 19-134% yield compared to non-weeded cane, early weeding (30-60 DAP) gave 45-97% higher yield compared to late weeded cane. 4. The visual observation showed no rhizome in the mixed pots which were weeded at 30 DAP, but at 60 DAP weeded pots showed 13% and 120 DAP weeded pots showed 100% of rhizome at final harvest. Therefore, the results demonstrated that growth of sugarcane can be recovered to satisfactory level either by removing weeds from the sugarcane field or by suppressing the weed growth below economic injury level. For successful weed control and getting higher yield in Torpedo grass infested field, sugarcane field must kept free from this weed up to 150 DAP and first removal of weeds may be recomended within 30-60 days after planting in all density of weed infested field such as cane+two weeds, cane+four weeds and cane+eight weeds.", "subitem_description_type": "Other"}, {"subitem_description": "\u7d00\u8981\u8ad6\u6587", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "\u7409\u7403\u5927\u5b66\u8fb2\u5b66\u90e8"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "eng"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/3800"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "0370-4246"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN00250548"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "\u7409\u7403\u5927\u5b66\u8fb2\u5b66\u90e8\u5b66\u8853\u5831\u544a"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus"}]}, "item_1617187056579": {"attribute_name": "Bibliographic Information", "attribute_value_mlt": [{"bibliographicIssueNumber": "40", "bibliographicPageEnd": "152", "bibliographicPageStart": "143"}]}, "item_1617258105262": {"attribute_name": "Resource Type", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_1617265215918": {"attribute_name": "Version Type", "attribute_value_mlt": [{"subitem_1522305645492": "VoR", "subitem_1600292170262": "http://purl.org/coar/version/c_970fb48d4fbd8a85"}]}, "item_1617605131499": {"attribute_name": "File", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "KJ00000161729.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2002829/files/KJ00000161729.pdf"}, "version_id": "a0818c57-98d6-456d-a026-91e1d32f033c"}]}, "item_title": "\u7409\u7403\u5217\u5cf6\u306e\u30b5\u30c8\u30a6\u30ad\u30d3\u7551\u306b\u304a\u3051\u308b\u96d1\u8349\u306e\u751f\u7406\u30fb\u751f\u614b : \u7b2c 13 \u5831 \u30cf\u30a4\u30ad\u30d3 (Panicum repens L.) \u306e\u9664\u8349\u6642\u671f\u304c\u30b5\u30c8\u30a6\u30ad\u30d3\u306e\u521d\u671f\u751f\u80b2\u306b\u53ca\u307c\u3059\u5f71\u97ff(\u9644\u5c5e\u8fb2\u5834)", "item_type_id": "15", "owner": "1", "path": ["1642837918448", "1642838407312"], "permalink_uri": "http://hdl.handle.net/20.500.12000/3800", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-02-14"}, "publish_date": "2008-02-14", "publish_status": "0", "recid": "2002829", "relation": {}, "relation_version_is_last": true, "title": ["\u7409\u7403\u5217\u5cf6\u306e\u30b5\u30c8\u30a6\u30ad\u30d3\u7551\u306b\u304a\u3051\u308b\u96d1\u8349\u306e\u751f\u7406\u30fb\u751f\u614b : \u7b2c 13 \u5831 \u30cf\u30a4\u30ad\u30d3 (Panicum repens L.) \u306e\u9664\u8349\u6642\u671f\u304c\u30b5\u30c8\u30a6\u30ad\u30d3\u306e\u521d\u671f\u751f\u80b2\u306b\u53ca\u307c\u3059\u5f71\u97ff(\u9644\u5c5e\u8fb2\u5834)"], "weko_shared_id": -1}