实现柑桔周年供应是日本扩大柑桔销售的有效措施之一。主要途径是采用温室栽培、不同成熟期品种搭配和鲜果贮藏。温室用两、三层薄膜复盖,多数利用柴油机加温,也有利用地热交换设备。在加热温室内的柑桔成熟期一般提早3个月,而在不加热时提早采收的时间较短。周年供应选用的品种、品系有极早熟、早熟、中熟和晚熟温州蜜柑,以及夏橙、八朔、伊予等其他晚柑类,可在露地条件下自9月上旬至5月陆续采收。贮藏柑桔常采用现代化的贮藏库、或农家简易库,有时留树贮藏 The annual supply of citrus is one of the effective measures to expand the sales of citrus in Japan. The main approach is to use greenhouse cultivation, with different maturity varieties and fresh fruit storage. Greenhouse with two or three films covered, the majority of the use of diesel heating, but also the use of geothermal exchange equipment. In the heated greenhouse citrus usually mature three months earlier, and when not heated early harvest time is shorter. The annual supply of selected varieties, the strains of very early, early maturing, medium and late ripe Satsuma, and summer orange, Baishuo, Iraq to other late-genus citrus, from the open conditions from early September to May after another harvest. Storage of citrus often use modern storage, or farm simple library, sometimes stay tree storage