柑桔低产果园改造的技术要点劣质品种、适龄不结果、大小年结果、病虫害严重等四种类型的劣质低产柑桔园，种植经济效益极低，严重影响果农种果的积极性。因此，必须高换与改造，才能促进柑桔果树正常生长发育，提高产果量，增加果农收入。一、劣质品种柑桔园的高换技术对... Low-yield citrus orchards in the transformation of the technical points Low-quality varieties, age-appropriate results, age-specific results, pests and diseases of four types of low-yield low-yield citrus orchards, planting very low economic benefits, seriously affecting the enthusiasm of fruit growers. Therefore, we must change and transform, in order to promote the normal growth and development of citrus fruit trees, increase fruit yield, increase income of fruit growers. First, low-quality varieties of citrus orchards of high technology for ...