概念 Concepts 轮作 Crop rotation: 在同一块田地上有顺序地轮换种植不同作物的种植方式 The practice of growing different crop each successive season (year on a given acreage in a planed sequence概 念 Concepts 轮作 Crop rotation： 在同一块田地上有顺序地轮换种植不同作物的种植方式。 The practice of growing different crop each successive season (year) on a given acreage in a planed sequence