effect of chemotaxis and hydrotaxis of soil microbes on nitrogen cycle during water saving irrigation

Research Project

Project/Area Number	20780173
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Irrigation, drainage and rural engineering/Rural planning
Research Institution	Nagoya Institute of Technology
Principal Investigator	SUETSUGU Atsushi Nagoya Institute of Technology, 工学(系)研究科(研究院), 研究員 (50398335)
Project Period (FY)	2008 – 2009
Project Status	Completed (Fiscal Year 2010)
Budget Amount *help	¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000) Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000) Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000) Fiscal Year 2008: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords	土壌物理 / 土壌圏現象 / 窒素循環 / 微生物 / 分子生態 / 砂漠化
Research Abstract	We calculated the distribution of water by using mathematical model implemented with drip irrigation and pitcher irrigation. Based on the calculation, condition of irrigation was evaluated by varying the strength and interval of irrigation. Then, we designed the sterilized Hele-Shaw soil column and prepared the small-scale water supplying equipment. With the Hele-Shaw soil column, chemotaxis and hydrotaxis of microbial community in soil before and after water saving irrigation were evaluated.