求翻译：请输入您需要翻译的文本！20世纪中后期人类依靠石油、化肥、农药、塑料薄膜和机械工业技术装备，创造了农业增产的奇迹，同时也带来了环境污染、食品安全、生物多样性减少、资源衰竭等影响地球人类可持续发展的严重问题。面对农业生态环境日益恶化的现实，人们开始思考和重新审视农业将如何发展，寻求各种各样可持续发展的替代农业模式。可持续农业在不同的国家和地区以及不同的时代有不同的解释，至今还没有一个完整而又被人们所广泛接受的定义。是什么意思？

Rely on oil, fertilizers, pesticides, plastic film and mechanical industrial technology and equipment in the late 20th century, mankind has created the miracle of agricultural production, has also brought environmental pollution, food safety, reduction of biodiversity, resource failure affecting the

In the mid to late 20th century Human dependence on oil, fertilizer, pesticides, plastic sheeting and mechanical industrial equipment, agricultural production has created a miracle and, at the same time, the environmental pollution, food security, biodiversity, resource exhaustion, affecting the Ear

Late in the 20th century humans rely on oil, chemical fertilizers, pesticides, of plastic film and mechanical industrial equipment, creating