| Project/Area Number |
61560019
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
作物
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| Research Institution | Tokyo University of Agriduture |
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Principal Investigator |
TAKESHI Tanabe Profeoosr, Faculty of Agricurture, Tokyo University of Agriculture, 農学部, 教授 (50078101)
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| Co-Investigator(Kenkyū-buntansha) |
FUJIO Tamai Instructore, Faculty of Agriculture, Tokyo University of Agruculture, 農学部, 講師 (40078176)
YOSHIHARU Motoda Instructor, Facultu of agriculture, Tokyo Univeristy of Ageiculture, 農学部, 講師 (30078175)
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| Project Period (FY) |
1986 – 1987
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| Project Status |
Completed (Fiscal Year 1987)
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| Budget Amount *help |
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1987: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1986: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | direct sowing / well-drained paddy field / root cutting / xeromorphism / fertilizer application to deeper layer / 乾性的生理と形態 / 直播水稲の断根栽培法 / 直播水稲施肥管理改善 / 断根深層施肥 / 生理的ストレス / 断根による水稲の形態的変異 / 直播水稲の耐倒伏性 |
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| Research Abstract |
On the manuring methods for direct sowing culture or rice plant in welldrained paddy field was investigated in relation to manuring time and space of fertilizer application.
Additinal fertilizer application to deeper layer 5 and 15cm depth at 5 cm distance from hill at the panicle formation stage was more effective to the growth and yield. The chatacteristics of light-intercepting of rice plant was improved by the additional fertilizer application to deeper layer, so that percentage of productive clums and percentage of ripened grains were rised.
Physiological effects of the fertilizer application to deeper layer were observed in root growth and activity. It was considered that many new root grew due the root cutting at the fertilizer application time and functioned till later growing period
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