| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Outline of Final Research Achievements |
We tried to suppress root-knot nematodes with a modification of cultivation system. We compared occurrence of root-knot nematodes (RKN) among 1) perennial, 2) no-till & annual, 3) tillage & annual cultivation. RKN occurrence was significantly smaller in 1) and 2) than 3). We considered that main causal factor was not the occurrence of antagonists or difference in plant age, but was reduced soil movement by tillage to result in a restricted RKN dissemination. Initiation of ecosystem development, e.g., increase of plant symbionts and decrease of cyanobacteria, were also observed.
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