【摘要】 农牧结合生态工程是一个复杂的农业生态、经济和技术系统工程。它是由种植业、养殖业和生物技术三个系统组成，其关键是建立一个以“四、三、二、一”为主要内容的高效节粮型畜牧生态工程。它要求用最少的自然资源，在最短的周期内，生产最多的优质农、牧产品，获取最高的经济效益，达到或维持最佳的生态平衡。更多还原

【Abstract】 An agriculture and animal husbandry combined engineering is a complex system consisting of ecological,economic and technical aspects.It is made up of three systems:plantation, animal husbandry and biological technology.What is critical is critical is to establish an efficient grain-saving animal ecological project focusing on "four, three, two and one".It is required to yield most and best agricultural and animal products, obtain highest economic returns, and reach or maintain an optimal ecological balance in a shortest period with least natural resources.更多还原