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Vegetable Horticulture Lab (Matsudo)
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A lab that grows vegetables in practice to study how light, temperature, and nutrient solution affect their growth.
AboutAbout the lab
Verifying vegetable-growing techniques through theory.
The ultimate goal of the Vegetable Horticulture Lab is to develop and establish the techniques required for vegetable cultivation.
Its research centers on actually growing vegetables and examining, from physiological and ecological perspectives, how they respond.
The lab investigates aboveground environmental factors such as light, day length, air temperature, and CO2 concentration, as well as belowground factors such as soil temperature and nutrient solution concentration.
Key terms
- Hydroponics
- A cultivation method that grows vegetables in a nutrient solution instead of soil
- Nutrient solution
- A liquid in which nutrients are dissolved in water. In soilless cultivation, it is supplied to the roots to grow plants
- Plant factory
- An indoor facility that grows vegetables with fine control of light, temperature, and other conditions. Fully controlled types do not rely on natural light
- Plug seedlings
- Seedlings grown in small divided cells filled with growing medium. They can be pulled out with the root ball intact and transplanted
NewsLab news
View More ↗ResearchResearch themes
With the ultimate goal of developing and establishing the techniques required for vegetable cultivation, the lab works to clarify the underlying theory. While determining how environmental factors such as light and temperature affect vegetables, it focuses on developing new hydroponic systems and optimizing seedling production.
*Illustrative imageFactory-style production of horticultural plants
Aiming at the practical use of fully controlled plant factories that rely on artificial light sources, the lab has studied the development of light sources, optimal light intensity and lighting methods, CO2 concentration, temperatures during the light and dark periods, and the composition and concentration of the nutrient solution.
*Illustrative imageSeedling production and storage
Plug seedlings have a small volume of growing medium and only a short window of time suitable for transplanting. Taking the utilization efficiency of seedling production facilities into account as well, the lab is studying storage methods for plug seedlings, such as low-temperature storage.
*Illustrative imageHydroponics and nutrient solution management for vegetables
The lab studies nutrient solution management in the hydroponic culture of leafy vegetables. It focuses on a management approach that splits the supply into an initial solution and later additional fertilization, and on a low-concentration quantitative management method, in which the initial concentration is kept extremely low and fertilizer is supplied in measured amounts. The aim is to produce vegetables with low nitrate content in a way that is gentle on the environment.
MembersFaculty
Members of the Vegetable Horticulture Lab are faculty, graduate students, and undergraduates working on graduation theses.
- Associate ProfessorMasafumi Johkan
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Vegetable cultivation” Anandarup Chakraborty / CC BY-SA 4.0 (cropped)
- Factory-style production of horticultural plants: “Vertical plant inside New” Ilnar A. Salakhiev / CC BY 3.0 (cropped)
- Seedling production and storage: “5904Farm Ready Seedling Facility East West Seed Philippines 28” Judgefloro / CC0 (cropped)
- Hydroponics and nutrient solution management for vegetables: “Leafy Greens Hydroponics” Ryan Somma / CC BY-SA 2.0 (cropped)
- Related lab (果樹園芸学研究室): “Pear Orchard at Castle Fruit Farm - geograph.org.uk - 8152442” Jonathan Billinger / CC BY-SA 2.0 (cropped)
- Related lab (植物環境工学研究室): “IFarm.fi Vertical farm Finland” ifarm.fi / CC BY-SA 4.0 (cropped)
- Related lab (植物環境工学研究室): “Small greenhouse with grapevines escaping” W.carter / CC0 (cropped)
- Related lab (植物病学研究室): “Fruits and Vegetables (20210128-ARS-LSC-0306)” USDAgov / Public domain (cropped)
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