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Influence of percolation patterns on growth and yield of rice plants and uptake of cadmium from polluted paddy fields using soil dressing models
https://doi.org/10.15113/00009504
https://doi.org/10.15113/00009504f19b3777-794b-4488-9b9c-778ec59a4c08
| 名前 / ファイル | ライセンス | アクション |
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本文1 (4.9 MB)
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本文2 (2.1 MB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||
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| 公開日 | 2011-12-08 | |||||||
| タイトル | ||||||||
| タイトル | Influence of percolation patterns on growth and yield of rice plants and uptake of cadmium from polluted paddy fields using soil dressing models | |||||||
| その他の言語のタイトル | ||||||||
| その他のタイトル | 客土を持つカドミウム汚染水田における浸透型の稲の生育収量及びカドミウム吸収に及ぼす影響 | |||||||
| 著者 |
PAUL, Shyamal Kumar
× PAUL, Shyamal Kumar
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| 著者(機関) | ||||||||
| 値 | The United Graduate School of Agricultural Sciences, Iwate University | |||||||
| アクセス権 | ||||||||
| アクセス権 | open access | |||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Percolation pattern | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Soil dressing | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Cadmium soil | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Cadmium accumulation in rice | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Growth and yield of plants | |||||||
| Abstract | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | We investigated that influence of percolation patterns on growth and yield of rice plants and uptake of cadmium from polluted paddy flelds using soil dressing models. The experiment was conducted in the green house with open and closed system percolation models (M-1,M-2,M-3,M-4,MI5,M-6,MI7,M-8,M-9andM-10). Those models were consisted of stratified soil layers and two different percolation systems (open and closed system percolation) and operated by 12.5cm (M-1 to M-6),15cm (M-7 to M-8) and 20cm (M-9 to M-10) soil dressing with stratifled polluted paddy fields. The stratifled paddy field models were constructed in an iron box (30x50x70 cm)with three layers of soil; those were plow layer(layer I; 0-12.5 cm), plowsole (layer II; 12.5-22.5cm), and subsoil(layer III,22.5-65cm)and constructed with Andosol or alluvial(layer I),Cd-polluted soil or Cd-polluted soil with alluvial (layer II) and gravel or Cd-polluted soil with gravel(III layer). In open system percolation models was planed in plowsole and subsoil but in the closed system percolation models, soil layers were planed under saturated condidon. The two percolation systems were applied to paddy field models by controlling the ground water level at 57.5 cm and 12.5 cm for the open system and closed system model, espectively, usinga subsurface drainage pipe. In open system percolation, the pressure head of the plowsole and subsoil were negative but inclosed system showed positive pressure. In the open system percolation models, plowsole and subsoil temperature almost similar to the air temperature but in closed system percolation models were higher than the air temperature. The soil redox(Eh)value in plow layer of both percolations was about-190 mV. But in the plowsole and subsoil were in oxidative condition(650mV) in open system percolation models. On the other hand, in the plowsole and subsoil were in reducdon state(-200mV) in closed system percolation models. The average SPAD values in closed system percolation models were lower than the open system percolation models. In the harvesting period, the 14th leaf was dry about 78% in closed system percolation but 43% in open system percolation models; this result indicated that the difference of photosynthesis ability of rice plants in two systems during ripening time. Moreover, the plant length, number of stem, number and weight of pamicles, number and weight of grains were lower in open system percolation models than the closed system percolation models. Accumuladon of cadmium in roots of each soil layer, stem and leaves and rice grain were higher in open system percolation than the closed system percolation models. In soil oxidation state, the insoluble cadmium metal in soil leading to soluble form with presence of oxygen which can be easily uptake by rice plants. As above mentioned, it was recogmized that percolation pattern in fluenced on the growth and yields of rice plants and uptake of cadmium. | |||||||
| 出版者 | ||||||||
| 出版者 | 岩手大学 | |||||||
| 登録日 | ||||||||
| 日付 | 2011-12-08 | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||
| 資源タイプ | doctoral thesis | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| ID登録 | ||||||||
| ID登録 | 10.15113/00009504 | |||||||
| ID登録タイプ | JaLC | |||||||
| physicalSize | ||||||||
| 値 | xi, 111p | |||||||
| 書誌情報 | p. 1-111, 発行日 2011 | |||||||
| 学位の区分 | ||||||||
| 値 | 博士 | |||||||
| 学位授与番号 | ||||||||
| 学位授与番号 | 甲第550号 | |||||||
| 学位の分野 | ||||||||
| 値 | 農学 | |||||||
| 学位名 | ||||||||
| 学位名 | 博士（農学） | |||||||
| 学位授与年月日 | ||||||||
| 学位授与年月日 | 2011-09-26 | |||||||
| 学位授与機関 | ||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||
| 学位授与機関識別子 | 11201 | |||||||
| 学位授与機関名 | 岩手大学 | |||||||
