选用优良品种是发展蔬菜生产的一项重要措施,应根据当地的气候条件、栽培方式、栽培季节、栽培的目的和用途以及栽培管理水平、消费习惯等合理地选用适当品种,切不可盲目引种,以免造成损失。1 品种的适应性。品种是在一定的生态条件和栽培条件下形成的,每个品种都有一定的适应地区和适宜的栽培条件,因此,在利用品种时,应了解每个品种所适应的地区范围和适宜的栽培条件,然后根据本地区的气候条件因地制宜的选用,切忌将不适合本地区栽培的品种盲目引用,否则会招致不良后果。2 栽培方式和季节。蔬菜的栽培方式多样,每种栽培方式下的小气候环境不尽相同,对品种的要求也不一样,而每个品种都有各自适宜的栽培条件。有的蔬菜品种对环境的要求十分严 The selection of fine varieties is an important measure for the development of vegetable production. Appropriate varieties should be properly selected according to the local climatic conditions, cultivation methods, planting season, purpose and purpose of cultivation, cultivation and management level, and consumption habits, etc. We should not blindly introduce, To avoid loss. 1 varieties of adaptability. Varieties are formed under certain ecological conditions and cultivation conditions, and each species has some suitable regions and suitable cultivation conditions. Therefore, when using varieties, it is necessary to understand the regional range suitable for each variety and the suitable cultivation Conditions, and then according to the climate conditions in the region selected according to local conditions, should not be blindly cited varieties not suitable for cultivation in the region, otherwise it will lead to adverse consequences. 2 cultivation methods and seasons. Vegetables are cultivated in various ways. The microclimate environment under each cultivation mode is different, and the requirements of varieties are also different. Each cultivar has its own suitable cultivation conditions. Some varieties of vegetables on the environment is very strict requirements