{"_buckets": {"deposit": "62322282-c312-4df3-a3b1-961d87d2eb49"}, "_deposit": {"id": "2015414", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2015414"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02015414", "sets": ["1642838325522", "1642838412624"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "Critocal Period for Weed Management in Sugarcane Field.", "subitem_1551255648112": "en"}, {"subitem_1551255647225": "\u30b5\u30c8\u30a6\u30ad\u30d3\u683d\u57f9\u306b\u304a\u3051\u308b\u9650\u754c\u9664\u8349\u671f\u9593", "subitem_1551255648112": "ja"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Matin, M.A.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hossain, M.A.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Oya, Kazuhiro", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hossain, A.H.M.D.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Rahman, M.K.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Uddin, S.M.M.", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "\u5927\u5c4b, \u4e00\u5f18", "creatorNameLang": "ja"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186499011": {"attribute_name": "Rights", "attribute_value_mlt": [{"subitem_1522650717957": "ja", "subitem_1522651041219": "\u6c96\u7e04\u8fb2\u696d\u7814\u7a76\u4f1a"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "An experiment was carried out at Muladully farm of North Bengal Sugar mills, Bangladesh during 1990\u20141991 crop season to determine the critical period for weed management in sugarcane. The experiment consisted of nine treatments with three replications and fitted in a randomized complete block design. Variety Isd. 16 was used as a test crop. Nine different weed infestation period was included in this experiment to meet up the needs of the study. Yield and various yield contributing parameters and economic impact of weeding were investigated under different treatments. The lowest number of tillers and millable stalks were obtained from the unweeded control plots (T_1) while the highest tillers and millable cane stalks were from the T_9 treatment where the plots were kept weed free up to 135 DAP. Similar results were also obtained in case of yield per plot. Further, prolonged weed infestation (T_5) during early growth stage of cane reduced tillering, millable stalks production and yield of cane. The treatment T_2 (keeping the land weed free from 45 to 135 DAP) was at par with the T_9 treatment in respect of tillering, millable canes and yield (ton/ha). The highest yield in the T_9 treatment was due to weed free environment in the plot coupled with maximum economic shoot. The percent yield increase due to weeding over control was directly related to the period of infestation. A weed free environment in cane field up to 135 DAP increased the cane yield maximum by 65 percent. Also keeping the land weed free during the early growth stage of cane helped increase recoverable sucrose (%). Economic analysis also revealed that additional yield over control was highest in the T_9 treat-ment. Additional income and net income due to weeding was higher in the T_9 treatment. Also the T_2 treatment gave satisfactory economic return compared with the control. From the results, it is clear that keeping the land weed free from 45 to 135 DAP gave significantly higher yield and maximum economic benefit over the non-weeded check or other treatments. So the critical period for weed management in sugarcane field was found between 45 to 135 DAP for obtaining maximum economic return.", "subitem_description_type": "Other"}, {"subitem_description": "\u3053\u306e\u5b9f\u9a13\u306f\u3001\u30b5\u30c8\u30a6\u30ad\u30d3\uff08a\u53ce\u91cf\uff09\u306b\u5bfe\u3059\u308b\u9650\u754c\u9664\u8349\u671f\u9593\u3092\u6c7a\u5b9a\u3059\u308b\u305f\u3081\u306b1990\uff5e91\u5e74\u3001\u30d0\u30f3\u30b0\u30e9\u30c7\u30b7\u30e5\u56fd\u3001\u30ce\u30fc\u30b9\u3001\u30d9\u30f3\u30ac\u30eb\u88fd\u7cd6\u5de5\u5834\u3001\u30e0\u30e9\u30c9\u30ea\u30fc\u8fb2\u5834\u3067\u5b9f\u65bd\u3057\u305f\u3002\u4f9b\u8a66\u54c1\u7a2e\u3068\u3057\u3066Isd.16\u3092\u4f7f\u3044\u30019\u51e6\u7406\u533a\u30923\u53cd\u5fa9\u3067\u3001\u914d\u7f6e\u306f\u4e71\u584a\u6cd5\u3067\u5b9f\u65bd\u3057\u305f\u3002\u3059\u306a\u308f\u3061\u30019\u7a2e\u985e\u306e\u7570\u306a\u3063\u305f\u9664\u8349\u51e6\u7406\u671f\u9593\uff08infestation period\uff09\u3092\u8a2d\u7f6e\u3057\u3001\u305d\u308c\u305e\u308c\u306b\u5bfe\u3059\u308b\u53ce\u91cf\u3001\u53ce\u7a6b\u69cb\u6210\u8981\u7d20\u53ca\u3073\u9664\u8349\u51e6\u7406\u306e\u7d4c\u6e08\u52b9\u679c\u3092\u691c\u8a0e\u3057\u305f\u3002\u305d\u306e\u7d50\u679c\u3001\u9664\u8349\u3092\u3057\u306a\u304b\u3063\u305f\u7121\u51e6\u7406\u533a\uff08\uff1aT_1\uff09\u3067\u5206\u3051\u3064\u830e\u6570\u53ca\u3073\u539f\u6750\u6599\u830e\u6570\u304c\u6700\u3082\u5c11\u306a\u304f\u306a\u308a\u3001\u690d\u4ed8\u3051\u304b\u3089135\u65e5\u9593\u9664\u8349\u3057\u305f\u533a\uff08\uff1aT_9\uff09\u304c\u6700\u3082\u591a\u304f\u306a\u3063\u305f\u3002\u53ce\u91cf\u306b\u304a\u3044\u3066\u3082\u540c\u69d8\u306b\u306a\u3063\u305f\u3002\u9006\u306b\u3001\u690d\u4ed8\u3051\u304b\u3089135\u65e5\u9593\u653e\u7f6e\u3057\u305f\u533a\uff08\uff1aT_5\uff09\u3067\u306f\u5206\u3051\u3064\u830e\u6570\u3001\u539f\u6750\u6599\u830e\u6570\u3001\u53ca\u3073\u539f\u6750\u6599\u830e\u53ce\u91cf\u306f\u6e1b\u5c11\u3057\u305f\u3002\u9664\u8349\u51e6\u7406\u671f\u9593\u304c45\u304b\u3089135\u65e5\u9593\u3067\u306e\u51e6\u7406\u533a\uff08\uff1aT_2\uff09\u306f\u5206\u3051\u3064\u830e\u6570\u3001\u539f\u6750\u6599\u830e\u6570\u53ca\u3073\u53ce\u91cf\u306b\u304a\u3044\u3066T_9\u3068\u6b86\u3069\u540c\u3058\u3067\u3042\u3063\u305f\u3002T_9\u51e6\u7406\u533a\u306b\u304a\u3051\u308b\u6700\u9ad8\u53ce\u91cf\u306f\u3001\u9664\u8349\u306b\u3088\u308b\u6709\u52b9\u830e\u306e\u5897\u52a0\uff08maximum economic shoot = millable shoot\uff09\u306b\u3088\u308b\u3082\u306e\u3067\u3042\u308b\u3002\u7121\u51e6\u7406\u306b\u5bfe\u3059\u308b\u5897\u53ce\u5272\u5408\u306f\u3001\u9664\u8349\u671f\u9593\u3068\u76f4\u63a5\u7684\u306b\u95a2\u4fc2\u3057\u305f\u3002135\u65e5\u9664\u8349\u51e6\u7406\u533a\uff08\uff1aT_9\uff09\u306f\u3001\u7121\u51e6\u7406\u533a\u3088\u308a\u53ce\u91cf\u306765\uff05\u5897\u52a0\u3057\u3001\u53ef\u88fd\u7cd6\u7387\uff08recoverable sucrose\uff05\uff09\u3082\u5897\u52a0\u3057\u305f\u3002\u7d4c\u6e08\u52b9\u679c\u3082\u307e\u305f\u5897\u53ce\u3092\u53cd\u6620\u3057\u3001T_9\u3067\u512a\u3063\u305f\u3002\u3059\u306a\u308f\u3061\u3001T_9\u3067\u306f\u3001\u8ffd\u52a0\u53ce\u5165\uff08additional income\uff09\u53ca\u3073\u7d14\u53ce\u91cf\u304c\u6700\u3082\u9ad8\u304f\u306a\u3063\u305f\u3002\u307e\u305f\u3001T_2\u3082\u7121\u51e6\u7406\u533a\uff08T_1\uff09\u306b\u6bd4\u8f03\u3057\u3066\u6e80\u8db3\u3059\u3079\u304d\u53ce\u76ca\uff08economic return\uff09\u304c\u898b\u3089\u308c\u305f\u3002\u305d\u3057\u3066\u3001\u7121\u51e6\u7406\u53ca\u3073\u4ed6\u306e\u51e6\u7406\u533a\u306b\u6bd4\u8f03\u3057\u300145\uff5e135 D.A.P\u51e6\u7406\u533a\uff08\uff1aT_2\uff09\u306f\u8457\u3057\u3044\u5897\u91cf\u304c\u5f97\u3089\u308c\u3001\u6700\u9ad8\u7d4c\u6e08\u52b9\u679c\uff08maximum economic benefit\uff09\u304c\u5f97\u3089\u308c\u305f\u3002\u3053\u306e\u3053\u3068\u304b\u3089\u3001\u30b5\u30c8\u30a6\u30ad\u30d3\u683d\u57f9\u306b\u304a\u3051\u308b\u6700\u9ad8\u7d4c\u6e08\u56de\u53ce\u3092\u884c\u306a\u3046\u305f\u3081\u306e\u9650\u754c\u9664\u8349\u671f\u9593\u306f\u300145\uff5e135\u65e5\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u3063\u305f\u3002", "subitem_description_type": "Other"}, {"subitem_description": "\u8ad6\u6587", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": 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"http://hdl.handle.net/20.500.12000/0002015414", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2009-01-29"}, "publish_date": "2009-01-29", "publish_status": "0", "recid": "2015414", "relation": {}, "relation_version_is_last": true, "title": ["Critocal Period for Weed Management in Sugarcane Field."], "weko_shared_id": -1}