Bulletin of the Faculty of Agriculture, Yamaguchi University

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Bulletin of the Faculty of Agriculture, Yamaguchi University Volume 9
published_at 1958

Report on the Soil Survey for Citrus Culture in Oosima-tyo, Yamaguti Prefecture

大島町柑橘栽培適地土壌調査報告 : （大島郡学術調査報告 13）
Ishibashi Hajime
About This Article
Descriptions
Oosima, the 3rd largest island in the Inland Sea, has a favourable climate for the growth of citrus. The citrus fruit produced in Oosima is very good in quality, and is always sold at higher prices than the citrus fruit from other areas. The Oosima Town officials have planed to extend the areas of citrus cultivation. This soil survey was conducted to serve the Town's extension plan. The soil profiles, etc. were surveyed in the areas. Then the mechanical analy-sis and the chemical analysis of the surface soil as well as the subsoil were con-ducted in the laboratory of Yamaguti University Based on the results obtained, several suggessions were given on the improve-ment of each soil unit, and the methods for manuring to get good production of citrus fruit were also studied.
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