一、有利于充分利用土壤养分不同蔬菜对养分的吸收特点不同,把需氮较多的、需磷较多和需钾较多的蔬菜轮作,或把深根性蔬菜和浅根性蔬菜进行轮作,就能充分利用土壤中各层次的养 First, it is conducive to making full use of soil nutrients Different vegetables have different absorption characteristics of nutrients, requiring more nitrogen, need more phosphorus and more potassium for rotation, or deep-rooted vegetables and shallow-rooted vegetables for rotation Can take full advantage of the soil at all levels of support