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一、绿色食品蔬菜品种选择及种子处理1、选择优良品种,实行合理轮作。必须选用高抗多抗病虫的优良品种,要严格实行轮作制度,合理搭配上下茬蔬菜种植制度。轮作的原则和方法:(1)利用当地气候条件或季节差异选择
First, the selection of green food and vegetable seeds and seed treatment 1, select the fine varieties, the implementation of a reasonable rotation. Must use high resistance and resistance to pests and diseases of the fine varieties, we must strictly implement the rotation system, with a reasonable upper and lower crop vegetable cultivation system. The rotation of the principles and methods: (1) the use of local climate conditions or seasonal differences in choice