鉴于现代农业能耗大、环境污染多等问题,70年代以来,西方学术界一直在企图找出一条替代的路子。有机农业、生态农业,生物农业、再生农业、超石油农业等自然农业口号应运而生、层出不穷。这些口号的共同主张是不使用化肥、农药、除草剂等化学合成品,属低投入、自给自足经济。其结果是环境有所改善,但产量则大幅度下降。因 In view of the problems of large energy consumption and environmental pollution in modern agriculture, since the 1970s, western academia has been trying to find an alternative path. Organic agriculture, eco-agriculture, bio-agriculture, renewable agriculture, super-oil agriculture and other natural agricultural slogans came into being, one after another. The common view of these slogans is not to use chemical compounds such as chemical fertilizers, pesticides and herbicides, which are low-input and self-sufficient economies. As a result, the environment has improved but output has dropped significantly. because