| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
|---|
| Outline of Final Research Achievements |
A new spray fertigation system (fog hydroponics) was developed for establishing horticultural crops (leaf lettuce, tomato, strawberry ) production. Fog hydroponics is an aeroponic technique that sprays a very fine foggy nutrient solution with an average droplet diameter between 10-30 μm into the root zone. The growth of leaves and overall yield were increased and increased root biomass and well developed root hair increased the absorption activity of nutrients and water by roots, resulted in an increase in stomatal conductance and photosynthesis rate. This aeroponic system needs less water than any other hydroponic technique and keeps rhizosphere temperature lower than air temperature owing to the release of latent heat by fog evaporation. We considered that fog aeroponics could be helpful and suitable new hydroponic system for growers of ever-bearing strawberry production in warm and lowland horticulture in summer.
|
