| Project/Area Number |
22380014
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Crop science/Weed science
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SHIMADA Shinji 農研機構, 中央農業研究センター, 主任研究員 (30355309)
TANAKA Tomoyuki 京都大学, 大学院・農学研究科, 准教授 (50224473)
HOMMA Koki 京都大学, 大学院・農学研究科, 講師 (60397560)
KATSURA Keisuke 京都大学, 大学院・農学研究科, 助教 (20432338)
桂 圭祐 京都大学, 農学研究科, 助教 (20432388)
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| Co-Investigator(Renkei-kenkyūsha) |
KAWAMURA Hisanori 滋賀県, 農業技術振興センター, 主任技師
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2013: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2012: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2011: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2010: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
|
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| Keywords | ダイズ / 生育モデル / 転換畑 / 土壌水分 / 収量 / 窒素固定 |
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| Research Abstract |
This study attempted to develop a crop model for soybean that can be applied to predict crop performance under excess soil moisture condition. To a previously published model (Sinclair, 1986), a module of developmental stages was incorporated. For developing a module of crop response to excess water, two series of controlled experiments were conducted. One was for determination of N fixation response to waterlogging as affected by soil temperature and redox potential. Another was for leaf-growth response to excess water that revealed a common pattern of the leaf-growth response under varied temperature condition. The field experiments conducted on a field facilitated with the system for controlling underground water level and a data-set of crop responses in biomass and N accumulation and seed yield was developed. A preliminary model that accounts for reduction of leaf area development due to excess water was applied to the data from the field experiments.
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