| Project/Area Number |
24580092
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Plant nutrition/Soil science
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| Research Institution | Toyohashi University of Technology |
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Principal Investigator |
SAIGUSA Masahiko 豊橋技術科学大学, 先端農業・バイオリサーチセンター, 特任教授 (10005655)
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| Co-Investigator(Kenkyū-buntansha) |
KUMAZAKI Tadashi 豊橋技術科学大学, 先端農業・バイオリサーチセンター, 特任助教 (90531541)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 重窒素トレーサー法 / 硝酸態窒素 / 養液組成 / リン酸集積 / 植物工場 / 炭酸ガス施肥 / 光合成環境 / ＬＥＤ / 肥料 / センサー / LED / 溶液組成 / 林産過剰 |
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| Outline of Final Research Achievements |
The nutritional status and nutritional management of horticulture were studied, and the results obtained are as follows.
①Excessive accumulation of NO3-,P,K,Mg and deficiency of Mn,Fe,Cu,Zn were revealed in the greenhouse soil.②The excessive P problem of soil and the excessive NO3- accumulation of vegetable were amended by using the polysilicon iron and by using new seed tape respectively.③NO3- content of vegetables grown in artificial light plant factory were beyond the EU regulation value. By reducing both total N content and NO3- ratio of marketing hydroponics liquid, NO3- content of vegetables were well controlled. ④ByN-15 tracer method, vegetables was revealed to utilize NH4+, equal or more than NO3-.⑤The three major elements in the horticulture is clarified to be N-K-Ca, but not N-P-K.⑥By an integrated environmental control cultivation with CO2 fertilization and December transplanting, the yield of big ball tomatoes reached to 50.6t per 10a for the first time in Japan.
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