2011 Fiscal Year Final Research Report
How much negative impact does surplus nitrogen in the agricultural land give to environment?
| Project/Area Number |
22780224
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Irrigation, drainage and rural engineering/Rural planning
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| Research Institution | Hirosaki University (2011)
Toyo Junior College of Food Technology (2010) |
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Principal Investigator |
ENDO Akira 弘前大学, 農学生命科学部, 助教 (70450278)
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| Project Period (FY) |
2010 – 2011
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| Keywords | 物質循環 / 土壌物理 / 地域環境保全 |
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| Research Abstract |
In the agricultural land such as paddy field, upland field, orchard land and pasture land, the authors analyzed the behavior of inorganic nitrogen in soil pore water during a year of cropped and non-cropped season. In these agricultural lands, the nitrate nitrogen which discharged from 90 cm depth during a year was calculated. From the results of this analysis, it became possible to calculate the nitrate nitrogen concentration of soil pore water which does not exceed 10 mg L^<-1>.
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