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淘金时代的加利福尼亚,被人们视为只是盛产牛奶和蜂蜜的地方。1855年,一位旅游者更是断言:加利福尼亚谷地,只能勉强为少数居民提供面包,若要满足众多人口的粮食需求,它的土地就无法胜任了,谁知时至今日,加利福尼亚竟然成了美国的“沙拉大锅”。它生产差不多占全国半数以上的水果、核桃和菜蔬。19世纪人们未看见:正是从那时起,科学进入了农业。这一进程改变了美国社会结构,尤以加州为甚。
California in the Gold Rush era was seen as just a place for milk and honey. In 1855, a tourist asserted further: In the valley of California, only a few residents can barely provide bread, and if the grain needs of many people are met, its land can not be qualified. Who knows nowadays, California has actually become America’s “salad cauldron.” It produces almost half of the country’s fruits, walnuts and vegetables. The 19th century saw no one: It was from that time on that science entered agriculture. This process has changed the structure of American society, especially in California.