{"created":"2023-06-20T16:35:38.049303+00:00","id":5012,"links":{},"metadata":{"_buckets":{"deposit":"6ef2d9a7-a4ba-4b36-b3ad-5ad1d1774acd"},"_deposit":{"created_by":3,"id":"5012","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"5012"},"status":"published"},"_oai":{"id":"oai:kindai.repo.nii.ac.jp:00005012","sets":["14:923:1379:1439","21:3039:3040:3062"]},"author_link":["6990","6991","6989"],"item_2_biblio_info_21":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1986-01-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"19","bibliographicPageEnd":"8","bibliographicPageStart":"1","bibliographic_titles":[{"bibliographic_title":"近畿大学農学部紀要"},{"bibliographic_title":"Memoirs of the Faculty of Agriculture of Kinki University","bibliographic_titleLang":"en"}]}]},"item_2_description_33":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"[Author abstract]We used [15N] ammonium sulfate as a tracer to investigate nitrogen uptake from applied fertilizers by corn plants and weeds, and studied the effects of competitive weed plants on the growth and yield of corn. 1) Weeds in the corn field rapidly increased in their growth rate about one month after the corn was sown, and until the corn reached knee height, the weeds intercepted up to 80% of the amount of basal-dressed nitrogen. The yield of corn was about 35% that in a well-weeded field. 2) Interception of nitrogen by weeds lowered not only the recovery of basal-dressing nitrogen, but also the uptake of soil and topdressing nitrogen by the corn plants. 3) The most harmful weed was large crabgrass, Digitaria adsndens Henr., which competed with corn plants for the nitrogen. [著者抄録]この報文は,トウモロコシの競合雑草が,施肥窒素の収奪を通してトウモロコシ収量に影響するしくみを,^<15>N標識肥料を用いて直接調査したものである.結果の大要は以下の通りである.(1)競合雑草の生育は,トウモロコシの生産初期には小さく,播種後,約1ケ月頃から急増した.したがって,生育初期に除草されずに膝高期まで放置された雑草は,基肥窒素をトウモロコシよりも優先的に吸収し,施用した基肥窒素の約80%を収奪するとともに,乾物生産においても,トウモロコシに被害を与えた.(2)初期除草が行われると,その後の雑草発生量は僅かとなり,基肥窒素の雑草による収奪が軽減され,トウモロコシは高収を確保した.(3)競合雑草は,トウモロコシの基肥窒素の利用率を低下させるのみならず,追肥窒素および土壌窒素の吸収も低下させた.(4)施肥窒素の収奪力の大きい雑草種は,メヒシバであって,この草種が養分吸収における強雑草であることが判った.","subitem_description_type":"Abstract"}]},"item_2_description_41":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_2_publisher_14":{"attribute_name":"出版者 名前","attribute_value_mlt":[{"subitem_publisher":"近畿大学農学部"}]},"item_2_source_id_22":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"04538889","subitem_source_identifier_type":"ISSN"}]},"item_2_text_7":{"attribute_name":"著者(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Okumura, Toshikatsu"},{"subitem_text_language":"en","subitem_text_value":"Takeuchi, Shiro"},{"subitem_text_language":"en","subitem_text_value":"Sugino, Mamoru"}]},"item_2_text_8":{"attribute_name":"著者 所属","attribute_value_mlt":[{"subitem_text_value":"近畿大学農学部農学科作物学研究室"},{"subitem_text_value":"近畿大学農学部農学科作物学研究室"},{"subitem_text_value":"近畿大学農学部農学科植物生理学研究室"}]},"item_2_text_9":{"attribute_name":"著者所属(翻訳)","attribute_value_mlt":[{"subitem_text_value":"Laboratory of Crop Science, Department of Agriculture, Faculty of Agriculture, Kinki University"},{"subitem_text_value":"Laboratory of Crop Science, Department of Agriculture, Faculty of Agriculture, Kinki University"},{"subitem_text_value":"Laboratory of Plant Physiology, Department of Agriculture, Faculty of Agriculture, Kinki University"}]},"item_2_version_type_12":{"attribute_name":"版","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_be7fb7dd8ff6fe43","subitem_version_type":"NA"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"奥村,  俊勝"},{"creatorName":"オクムラ, トシカツ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"竹内,  史郎"},{"creatorName":"タケウチ, シロウ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"杉野,  守"},{"creatorName":"スギノ, マモル","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-02-18"}],"displaytype":"detail","filename":"AN00064044-19860315-0001.pdf","filesize":[{"value":"1.8 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"AN00064044-19860315-0001.pdf","url":"https://kindai.repo.nii.ac.jp/record/5012/files/AN00064044-19860315-0001.pdf"},"version_id":"54fb16eb-ea21-4be9-a40e-680f6efc9193"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_thumbnail":{"attribute_name":"サムネイル","attribute_value_mlt":[{"subitem_thumbnail":[{"thumbnail_label":"AN00064044-19860315-0001.jpeg","thumbnail_url":"/api/files/6ef2d9a7-a4ba-4b36-b3ad-5ad1d1774acd/AN00064044-19860315-0001.jpeg?versionId=9aa9d8f9-8106-4f5e-b974-e5715886b1bc"}]}]},"item_title":"トウモロコシと雑草の施肥窒素に対する競合","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"トウモロコシと雑草の施肥窒素に対する競合"},{"subitem_title":"Competition between Corn Plants and Weeds for Uptake of Nitrogen Fertilizer","subitem_title_language":"en"}]},"item_type_id":"2","owner":"3","path":["1439","3062"],"pubdate":{"attribute_name":"公開日","attribute_value":"2008-01-31"},"publish_date":"2008-01-31","publish_status":"0","recid":"5012","relation_version_is_last":true,"title":["トウモロコシと雑草の施肥窒素に対する競合"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-06-20T19:31:41.346225+00:00"}