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蔬菜轮作是在同一块地上，按照一定年限，轮换栽培几种性质不同的蔬菜。它是合理利用土壤肥力、减轻病虫害、提高劳动生产率的有效措施。在安排蔬菜轮作时，须掌握以下原则：一、要以不同科的蔬菜进行轮作同科蔬菜有同样的病虫害发生与危害，采取不同科蔬菜进行轮作，可使病菌
Vegetable rotation is in the same piece of land, according to a certain number of years, different types of vegetables rotation cultivation. It is an effective measure to make rational use of soil fertility, reduce pests and diseases and improve labor productivity. When arranging vegetable rotation, we must grasp the following principles: 1. It is necessary to carry out the same pest and disease occurrence and endangerment of Vegetables in the same section with different sections of vegetables. Taking different sections of vegetables for rotation allows the bacteria