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概述油桐(Aleurites montana)由于它生产高质量的干性油,在马拉威地区从1931年就已经开始引种。福斯特(1962年)早就报道过油桐对无机肥料(硫酸铵)或有机肥料(油饼)中的氮素的反应。沈德氏(1953年)在该地区证实过氮素的经济价值。其他林业工作者也曾记载过三年桐(Aleurites fordiiHe.)对氮素的反应(1947、1948、1953、1954、1955、1969……)。在马拉威的桐林中,偶然有一次发现,在使用氮素的基础上,油桐对过磷酸盐中磷的
Overview Aleurites montana has been introduced since 1931 in the Malawi region because it produces high quality dry oils. Foster (1962) has long reported on the response of tung oil to nitrogen in inorganic fertilizers (ammonium sulfate) or organic fertilizers (cakes). Shen De Shi (1953) confirmed the economic value of nitrogen in the area. Other forestry workers have also documented the three-year response of Aleurites fordii Hee to nitrogen (1947, 1948, 1953, 1954, 1955, 1969, ...). In the Tonglin of Malawi, accidentally, once found that the use of nitrogen, based on the tungstophosphorus phosphate