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世界上種植(zhi)的油(you)(you)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)有(you)6種，以原產我國(guo)的三(san)年(nian)(nian)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)和(he)千(qian)(qian)年(nian)(nian)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)為普遍(bian)。油(you)(you)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)屬大(da)戟科，落葉喬木。三(san)年(nian)(nian)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)學(xue)名油(you)(you)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)，長(chang)得(de)快，結(jie)果早，產量高，盛果期可達20年(nian)(nian)～30年(nian)(nian)。千(qian)(qian)年(nian)(nian)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)學(xue)名木油(you)(you)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)，因(yin)果皮有(you)皺(zhou)紋，又稱(cheng)龜背桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)，寓意長(chang)命百歲(sui)。千(qian)(qian)年(nian)(nian)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)比三(san)年(nian)(nian)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)高大(da)，有(you)10多(duo)米，樹齡較(jiao)(jiao)長(chang)。中國(guo)較(jiao)(jiao)大(da)的一株油(you)(you)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)樹，在福建省漳浦縣(xian)石榴公社。這株千(qian)(qian)年(nian)(nian)生(sheng)的油(you)(you)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)樹，樹高36 米，冠幅(fu)36.5 米，平均(jun)每年(nian)(nian)結(jie)果2000 多(duo)斤(jin)，可榨(zha)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)油(you)(you)100多(duo)斤(jin)，素有(you) “油(you)(you)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)王”之(zhi)稱(cheng)。油(you)(you)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)種子榨(zha)出(chu)的油(you)(you)叫桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)油(you)(you)；木油(you)(you)桐(tong)(tong)(tong)(tong)(tong)(tong)(tong)種子榨(zha)出(chu)的油(you)(you)叫木油(you)(you)，質量稍(shao)遜。

新鄉(xiang)速生法桐(tong)苗廠(chang)家(jia)就介紹這(zhe)么(me)多了，如(ru)還有什么(me)想知道的，來電咨詢(xun)。