油梨在国外早在13世纪就已经进行集约化生产,至今已遍布世界五大洲,有37个国家种植,总面积约300万亩,年产果170多万吨。目前无论是种植面积,还是消费量,仍然有增无减。世界油梨生产大国之一的墨西哥,1973年种植面积才只有2万公顷,但到1988年便猛增至9万公顷。短短的15年,种植面积就翻了两番多,平均每年以11.34%的 As far back as the 13th century, it has already been intensively produced. It has spread all over the world on five continents and has grown in 37 countries with a total area of ​​about 3 million mu and an annual output of more than 1.7 million tons. Currently, no matter whether it is acreage or consumption, it is still increasing. In Mexico, one of the world’s largest oil-pear producers, only 20,000 hectares were planted in 1973, but by 1988 it soared to 90,000 hectares. In just 15 years, the acreage has more than tripled, averaging 11.34% a year