1987 Fiscal Year Final Research Report Summary
Studies on the improvement of manuring management if direct sowing culture of rice plant
| 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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| Keywords | direct sowing / well-drained paddy field / root cutting / xeromorphism / fertilizer application to deeper layer / 乾性的生理と形態 |
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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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