A lot of farming techniques have been abandoned because they were too labour-intensive.很多耕作方式因其劳动过于密集而被淘汰。They believe that modern farming techniques encourage an excessive reliance on harmful chemicals.他们认为现代农业技术鼓励过多使用有害的化学物质。Several people will be demonstrating traditional farming techniques.几个人将演示传统的农耕技术。