Cultivation of Satsuma Mandarin in Vinyl-Greenhouses in Japan

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X

A main objective of growing satsuma mandarin (Citrus unshiu Marc.) in a vinyl-greenhouse is to secure competitiveness of the products in the markets by early shipping of high quality fruits. For early shipping of the products from the vinyl-greenhouses, heating starts in early December and fruits art harvested before the end of July. Although this type of cultivation is profitable under adequate managements, it has a problem caused by unreliability of flowering, which is related to completion of dormancy. To estimate the degree of dormancy completion, a simple method has been employed by the growers to determine contests tion, of carbohydrate. In addition, a benzylamine purine treatment has been developed to promote growth of sprouts and stimulate flower-bud emergence. Further improvements art required to ensure profitability of the cultivation in a vinyl-greenhouse, including reduction of production costs and quality improvement. It costs ¥70 to 100 million to build a one-hectare vinyl-greenhouse, including heating, ventilation and irrigation systems. The fuel required for one season operation is 250 kl, or ¥7.5 million equivalent per ha for the early shipping type. Cost reduction is vital for the future development of this cultivation system.

作成者 Isao IWAGAKI
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
開始ページ 292
終了ページ 299
言語 eng