| Project/Area Number |
60560075
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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 |
土壌・肥料
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| Research Institution | Yamaguchi University |
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Principal Investigator |
MARUMOTO Takuya Assoc. Prof., Fac. of Agriculture, Yamaguchi Univ., 農学部, 助教授 (00035122)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAGI Hiroshi Assoc. Prof., Fac. of Agriculture, Miyazaki Univ., 農学部, 助教授 (90094078)
HIGASHI Toshio Prof., Fac. of Agriculture, Yamaguchi Univ., 農学部, 教授 (70035096)
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| Project Period (FY) |
1985 – 1986
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| Project Status |
Completed (Fiscal Year 1986)
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| Budget Amount *help |
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1986: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1985: ¥1,300,000 (Direct Cost: ¥1,300,000)
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| Keywords | Microbial Biomass / Rhizosphere / ATP / ATP法 / 根圏土壌 |
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| Research Abstract |
The aims of this project were to establish the determination method of microbial biomass C and N and to clear their metabolism in rhizosphere soil of upland crops.
(1985): A close relationship between ATP content by TEA-NRB method and biomass C by chloroform fumigation method was obtained, and the calculation factor of 870 was proposed to convert the ATP content into soil microbial biomass C.
(1986): The determination method of microbial biomass N in rhizosphere soil of upland crops was examined. It was indicated that the chloroform fumigation-incubation method and the direct extraction method of biomass N just after the fumigation were available to measure the biomass in rhizosphere. Changes in biomass C in rhizosphere soil during the growing season of upland rice was measured.
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