{"_buckets": {"deposit": "1a618f56-4de9-4f9d-a8a8-5e5872f2f3f5"}, "_deposit": {"id": "28483", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "28483"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00028483"}, "item_7_alternative_title_1": {"attribute_name": "\u305d\u306e\u4ed6\u306e\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_alternative_title": "\u767a\u5149\u5206\u5149\u6cd5\u306b\u3088\u308b\u30b1\u30eb\u30c0\u30fc\u30eb\u5206\u89e3\u6db2\u306e15N\u6fc3\u5ea6\u5206\u6790"}]}, "item_7_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2004-08", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "1", "bibliographicPageEnd": "40", "bibliographicPageStart": "33", "bibliographicVolumeNumber": "57", "bibliographic_titles": [{"bibliographic_title": "\u65b0\u6f5f\u5927\u5b66\u8fb2\u5b66\u90e8\u7814\u7a76\u5831\u544a"}, {"bibliographic_title": "\u65b0\u6f5f\u5927\u5b66\u8fb2\u5b66\u90e8\u7814\u7a76\u5831\u544a", "bibliographic_titleLang": "en"}]}]}, "item_7_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "Direct analysis of 15N abundance of Kjeldahl digested solution by emission spectrometry was established. Plant sample is digested by Kjeldahl digestion method using H2SO4 and H2O2, and an aliquot of digested solution including ammonium nitrogen (about 2\u03bcgN) is directly taken into a Pyrex glass tube with the outer diameter 4mm. After water in the Pyrex tubes is evaporated, the glass tubes are evacuated by the vacuum system for discharge tube preparation and sealed with oxidation reagent (CuO) and water absorbent (heated CaO at 950\u2103). The sealed tubes are heated at 560\u2103\u3000for 30 min in a muffle furnace to oxidize ammonium into N2 gas. The 15N abundance can be measured by emission spectrometry (JASCO N-150 analyzer). This procedure is the simplest and accurate method for the determination of 15N abundance of total N in the samples.\u30b1\u30eb\u30c0\u30fc\u30eb\u5206\u89e3\u6db2\u3092\u76f4\u63a5\u30d1\u30a4\u30ec\u30c3\u30af\u30b9\u30ac\u30e9\u30b9\u7ba1\u306b\u5c0e\u5165\u3057\u3066\u653e\u96fb\u7ba1\u3092\u4f5c\u6210\u3057\u3001\u767a\u5149\u5206\u5149\u6cd5\u306b\u3088\u308a15N\u6fc3\u5ea6\u3092\u6e2c\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u305f\u3002\u690d\u7269\u8a66\u6599\u3092\u786b\u9178-\u904e\u9178\u5316\u6c34\u7d20\u3092\u7528\u3044\u3066\u30b1\u30eb\u30c0\u30fc\u30eb\u5206\u89e3\u3057\u3001\u4e00\u5b9a\u91cf\u306b\u5b9a\u5bb9\u5f8c\u3001\u30a4\u30f3\u30c9\u30d5\u30a7\u30ce\u30fc\u30eb\u6cd5\u3067\u30a2\u30f3\u30e2\u30cb\u30a6\u30e0\u6fc3\u5ea6\u3092\u6e2c\u5b9a\u3057\u305f\u3002\u6e2c\u5b9a\u5f8c\u3001\u7a92\u7d20\u3068\u3057\u3066\u7d042\u03bcg\u7a0b\u5ea6\u3092\u542b\u3080\u5206\u89e3\u6db2\u3092\u76f4\u63a5\u7247\u5074\u3092\u9589\u3058\u305f\u5916\u5f844mm\u306e\u30d1\u30a4\u30ec\u30c3\u30af\u30b9\u30ac\u30e9\u30b9\u7ba1\u306b\u5165\u308c\u3001\u6c34\u3092\u6e1b\u5727\u9664\u53bb\u3057\u305f\u5f8c\u3001\u9178\u5316\u5264(\u7dda\u72b6\u9178\u5316\u9285)\u3068\u6c34\u5438\u53ce\u5264(950\u2103\u3067\u52a0\u71b1\u3057\u305f\u9178\u5316\u30ab\u30eb\u30b7\u30a6\u30e0)\u3092\u5165\u308c\u3066\u3001\u771f\u7a7a\u5c01\u5370\u3057\u305f\u5f8c\u3001560\u2103\u306730\u5206\u9593\u52a0\u71b1\u3057\u3066\u3001\u30a2\u30f3\u30e2\u30cb\u30a2\u3092\u7a92\u7d20\u30ac\u30b9\u5909\u3048\u305f\u300215N\u6fc3\u5ea6\u306f\u3001\u767a\u5149\u5206\u5149\u6cd5(JASCO 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