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世界农业正面临着一个严重问题:自本世纪以来,全世界已有75%的农作物品种绝迹。在欧洲,1900年存在的家畜家禽中,将近半数已绝种。剩下品种中的1/3在20年后也将绝迹。这种恶果恰恰是现代技术进步的副产品;农
World agriculture is facing a serious problem: 75% of the crop varieties in the world have been extinct since this century. In Europe nearly half of the livestock poultry that existed in 1900 was extinct. One-third of the remaining breeds will also disappear in 20 years. This evil effect is precisely a byproduct of modern technological progress; agriculture