Maior topics 1.农牧结合的概念和意义 The concept and importance of mixed farming 2.农牧结合的效率与模式 Efficiency and patterns of mixed farming systems 3.农牧结合种植制度的设计 Cropping systems Design in mixed farming systemsMajor topics 1. 农 牧 结 合 的 概 念 和 意 义 The concept and importance of mixed farming 2. 农牧结合的效率与模式 Efficiency and patterns of mixed farming systems 3. 农牧结合种植制度的设计 Cropping systems Design in mixed farming systems