三元复合肥料是我国化工研究部门工人和科技人员,遵照毛主席“独立自主,自立更生”的方针,试制生产的一种含有氮、磷、钾养分为主的新型化学肥料。据我国近几年来的试验表明,它对多种作物具有增产效果。在国外已被广泛施用。1975—1977年我们与上海化工研究院、中国农科院柑桔所、广西柑桔所、广东国营杨村柑桔场协作,在柑桔上进行了三种类型的复肥效果的对比试验。 Ternary compound fertilizer is a new kind of chemical fertilizers containing nitrogen, phosphorus and potassium in trial production and production in accordance with the principle of “independent and self-reliance” by Chairman Mao’s workers and scientific and technical personnel in China’s chemical research department. According to the tests conducted in recent years in our country, it has been shown to increase the yield of various crops. In foreign countries have been widely used. From 1975 to 1977, we collaborated with Shanghai Institute of Chemical Industry, Chinese Academy of Agricultural Sciences Citrus, Guangxi Citrus, Guangdong State-owned Yangcun Citrus Farm to conduct three types of compound fertilizer test on citrus.