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深耕多肥密植栽培における水稲群落の微細気象と productive structure(農学部門)
https://kpu.repo.nii.ac.jp/records/4747
https://kpu.repo.nii.ac.jp/records/4747340264ab-44c9-4932-85c8-17dada662c61
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00000078746.pdf (1.0 MB)
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| Item type | [ELS]紀要論文 / Departmental Bulletin Paper(1) | |||||
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| 公開日 | 2017-02-20 | |||||
| タイトル | ||||||
| タイトル | 深耕多肥密植栽培における水稲群落の微細気象と productive structure(農学部門) | |||||
| 言語 | ja | |||||
| その他（別言語等） | ||||||
| その他のタイトル | Microclimate and productive structure in rice plant communities cultivated with thick spacing, deep tillage and heavy manuring (Agriculture) | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源タイプ | departmental bulletin paper | |||||
| 著者 |
梅景, 修
× 梅景, 修× 野田, 雄司× 渡部, 忠世 |
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| 抄録(日) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 栽植密度, 耕深および施肥量の相違により, 水稲群落における微細気象とproductive structure(生産構造)がどのように変化するかを検討するために, 1961年に中生新千本を用いて実験を行なつた。主な結果は次のとおりである。1)個体の生育経過はすでに報告されているものと傾向を一にする。すなわち, 密植にするほど草丈は低く, 一株当たり茎数は少ない。さらに最高分げつ期, 出穂期に達するのが早い。一方, 深耕条件では有効茎歩合が高く, 根は深い部分にまで分布する。2)深耕多肥密植条件下の水稲群落内の微細気象は概して高温多湿である。3)深耕多肥密植栽培における水稲群落のproductive structureは, 標準栽培のそれと比較して次のような特徴を示す。すなわち, 全乾物重は増加し, また非同化部分にくらべて同化部分の量はやや多いが, 同化部分のうちでは下位における発育が乏しく, その光合成機能は上位葉に依存する体制にある。これは主に植物の相互遮蔽に影響される受光条件の差異によるものと考えられる。4)深耕多肥密植栽培では標準栽培より一穂当たり粒数が少なく, 不稔歩合が高く, 単位面積当たりの収量も少なかつたが, これは成熟期における台風・日照不足などの気象の悪条件によるものと思われる。 | |||||
| 言語 | ja | |||||
| 抄録(英) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | In this experiment conducted in 1961,the authors examined how the microclimate and the productive structure in rice plant communities were influenced by various combinations of plant spacing, depth of tillage and amounts of manure. The rice variety named Nakate-Shinsenbon was used. Main results were summarized as follows : 1) On the individual plant, the vegetative growth, as already reported in the previous papers, generally reduced under the all conditions with thick spacing in spite of degree both of tillage and manure. Moreover, the days from germination to full tiller period and to heading period were both shortened under same conditions. Under the conditions with deep tillage, however, percentages of fertile ears per hill and root length were almost increased. 2) Microclimatic conditions, i. e. temperature and moisture in plant communit es under the condition combining with thick spacing, deep tillage and heavy manuring (plot 7) both exceeded those under the ordinary condition (plot 2). This tendency was observed throughout the whole generative growth periods; especially in August it was most striking. 3) The productive structure of plant communities were such as shown in Figs. 6 and 8,the dry weight of top and of assimilative parts per unit area increase of plant density. But as the density increases, percentages of assimilative parts or vigorous leaf-blades at lower parts of plant somewhat reduced. It might be said that photosynthetic abilities of plants under the conditions with thick spacing mostly depended upon the leaves of upper parts, and the phenomenon was due to the differences in conditions of receiving the light, which was greatly influenced by the mutual shade among the plants. 4) Plants under the ordinary condition were remarkably superior in number of grains per ear and percentages of fertile grains to those of the condition combining with thick spacing, deep tillage and heavy manuring. Consequently, decrease of yield per unit area appeared in latter condition compared with the former ones, and this reduction seemed to be promoted by the typhoon and the clouded weather in ripening stages in this year. | |||||
| 言語 | en | |||||
| 書誌情報 |
ja : 京都府立大學學術報告. 農學 en : The scientific reports of Kyoto Prefectural University. Agriculture 巻 15, p. 57-66, 発行日 1963-09-01 |
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| 雑誌書誌ID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00062275 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 00757373 | |||||
