重庆市果树研究所李隆华研究员对高接换种技术进行改进与创新,系统研究了橘橙7号品种的区域适应性,提出因树制宜低位(中位)适头嫁接及早结丰产技术,并首次探明该品种果实生长发育规律、最佳叶果比、保花保果、配方施肥、控制裂果等技术规范,在大面积生产上示范推广。试验园实现 Researcher Li Longhua of Chongqing Fruit Tree Research Institute improved and innovated the technology of high-yield substitution. The regional adaptability of orange-orange variety 7 was studied systematically. For the first time, it has proved the law of fruit growth and development, the best ratio of leaf-fruit, the flower-preserving and fruit-preserving, the formula fertilization, the control of split fruit and other technical specifications, demonstrating and popularizing in large-scale production. Test Garden to achieve