{"created":"2023-06-20T14:39:13.143920+00:00","id":720,"links":{},"metadata":{"_buckets":{"deposit":"36b4f3cf-7106-4c4a-8dea-cba0f271f7da"},"_deposit":{"created_by":14,"id":"720","owners":[14],"pid":{"revision_id":0,"type":"depid","value":"720"},"status":"published"},"_oai":{"id":"oai:chikyu.repo.nii.ac.jp:00000720","sets":["88:90:154:160"]},"author_link":["22","706","647","654","707","627","23","662","648","663"],"item_10009_date_11":{"attribute_name":"出版年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2011-01","subitem_date_issued_type":"Issued"}]},"item_10009_description_19":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_10009_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"ザンビア南部州のトウモロコシの生産性に作期移動が及ぼす影響を2008/09年，2009/10年に評価した。いずれの地点でも作期を遅くすることで収量の低下が年次を超え認められ，平均で19％低下し，その低下程度と播種直後30日間の気温また風速の間で密接な関係があった。農家が選択する植付時期が最適であることが示された。\n","subitem_description_type":"Abstract"},{"subitem_description":"Optimal planting date is essential to attain high maize (Zea mays L.) productivity despite environmental variation in low-input agriculture in Zambia. Local farmers generally plant maize as soon as possible after the rainy season begins, but there is no scientific evidence that this timing is optimal for attaining high productivity using local practices. To test this, we grew maize at three planting dates (normal timing, then 10 and 20 days later) in six fields of Zambia's Southern Province in the 2008/09 and 2009/10 growing seasons. Grain yield was reduced by delayed planting, by an average of 19% for all years and locations combined. The reduction resulted from decreased biomass production and harvest index. The yield was closely correlated with the mean air temperature and wind speed during the 30 days after planting; cooler and windier conditions increased the magnitude of the yield reduction due to delayed planting. These results support the early planting used by local farmers.","subitem_description_type":"Abstract"}]},"item_10009_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"和文のものは、英文の報告の内容を要約したものとなっている","subitem_description_type":"Other"}]},"item_10009_end_page_10":{"attribute_name":"終了ページ","attribute_value_mlt":[{"subitem_end_page":"英145　和265"}]},"item_10009_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"総合地球環境学研究所"}]},"item_10009_record_name_7":{"attribute_name":"図書名","attribute_value_mlt":[{"subitem_source_title":"2010年度　レジリアンスプロジェクト報告書"}]},"item_10009_relation_13":{"attribute_name":"ISBN","attribute_value_mlt":[{"subitem_relation_type":"isPartOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"978-4-902325-56-0","subitem_relation_type_select":"ISBN"}}]},"item_10009_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"レジリアンス・プロジェクト"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.chikyu.ac.jp/resilience/index.html","subitem_relation_type_select":"URI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"総合地球環境学研究所"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.chikyu.ac.jp/","subitem_relation_type_select":"URI"}}]},"item_10009_start_page_9":{"attribute_name":"開始ページ","attribute_value_mlt":[{"subitem_start_page":"英136　和265"}]},"item_10009_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"下野, 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Zambia","subitem_title_language":"en"}]},"item_type_id":"10009","owner":"14","path":["160"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-11-17"},"publish_date":"2016-11-17","publish_status":"0","recid":"720","relation_version_is_last":true,"title":["ザンビア南部州のトウモロコシの生産性に作期移動が及ぼす影響"],"weko_creator_id":"14","weko_shared_id":-1},"updated":"2023-06-20T16:55:28.804553+00:00"}