　ワセウンシュウの高うねマルチ栽培は成園状態で，樹高が1.5m程度と慣行栽培に比べて低いが，密植によって10ａ当たり収量は慣行栽培と同程度が確保される。高うねマルチ栽培では収穫の際に脚立が不要で，腕上げ等の身体に負担の大きい作業が減少して，軽作業化が図られ収穫時間が短縮できる。高うねマルチ栽培の10ａ当たり労働時間は露地栽培より13％，マルチ栽培より21％短縮する。経営費は露地栽培よりも60,000円，マルチ栽培より30,000円程度高くなるが，それぞれ 1kg当たり50円，30円高い単価で販売することで同等の農業所得を確保できる。

　Labor Saving and Profitability Realized by High Ridge Multi-Cultivation of Wase Satsuma Mandarins. MATSUMOTO Kazunori, Kosaku USHIJIMA, Daijiro YAHATA and Takurou SUYAMA (Fukuoka Agricultural Research Center, Chikushino, Fukuoka 8188549, Japan) Bull. Fukuoka Agric. Res. Cent. 25:71-75 (2006)

　Wase Satsuma mandarin trees in a mature orchard stand about 1.5 meters high making them shorter than conventional tangerine trees. However, thanks to close planting, the amount of the fruit produced per 10a is about the same as that from a conventional mangerine orchard.　The merits associated with high ridge cultivation are that it eliminates the need for steps and saves pickers the labor of stretching and lifting their arms high. This method makes the entire work process lighter. Additionally, picking work load can be reduced by 13% compared to field cultivation and 21% to multi-cultivation per 10a.　Operational costs increase by 60,000 yen and 30,000 yen compared to field cultivation and multi-cultivation respectively. However, the fruit can be sold 50 and 30 yen more per kilogram which can be translated as equal agricultural income.