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Title :Growth, Yield and Quality of Turmeric (Curcuma longa L.) Cultivated on Dark-red Soil, Gray Soil and Red Soil in Okinawa, Japan
Authors :Hossain, Md. Amzad
Ishimine, Yukio
Issue Date :Sep-2005
Abstract :We evaluated growth, yield and quality of turmeric (Curcuma longa L.) cultivated in pots with dark-red soil (pH 5.2), gray soil (pH 7.4) and red soil (pH 4.4) in Okinawa, Japan. The soils were collected from the 50-cm deep layer of the fields. We did not use any chemicals or organic fertilizers. Turmeric cultivated on dark-red soil had the highest plant height, root biomass and shoot biomass as compared with that cultivated on other soil types. Turmeric on dark-red soil had the highest yield with favorable color of the deep yellow and high curcumin content (0.20%). Protein content of turmeric in dark-red soil was 5.2%, which was around 40% higher than that in other soil types. Turmeric cultivated on dark-red and gray soils had a fat content 71% higher than that in red soil. The content of Ca, K and Mg was the highest when turmeric was cultivated on gray soil, and Fe was the highest when cultivated on dark-red soil. To gain a high yield and high contents of curcumin, fat, protein and Fe, we should cultivate turmeric in dark-red soil in Okinawa. We could not recognize the specific soil factor (s) required for high yielding and high quality of turmeric; however, it seems that a proper combination of soil factors, nutrients and/or pH level may be necessary to gain a high yield and high quality.
Type Local :雑誌掲載論文
ISSN :1343-943X
Publisher :The Crop Science Society of Japan
URI :http://hdl.handle.net/20.500.12000/4875
Citation :Plant Production Science Vol.8 no.4 p.482 -486
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Agriculture)

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