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育苗是蔬菜栽培的重要环节之一,其实质是使蔬菜提前生长发育,达到早收、多产的目的。在我国北方冬春寒冷地区,蔬菜春季保护地育苗(简称寒地蔬菜育苗,下同)具有更重要的意义。 我国蔬菜栽培历史悠久,育苗经验丰富。在长期的生产实践中,我国北方已经形成了一整套的寒地蔬菜育苗技术体系,曾经并正在蔬菜生产中发挥一定的早熟增产作用。但是,生产效果表明,这种现有的蔬菜育苗技术体系的根本性缺点是:凭经验育苗,既难
Nursery is an important part of vegetable cultivation, its essence is to advance the growth of vegetables to achieve early harvest, prolific purpose. In winter and spring cold areas in northern China, vegetable spring protection seedling (referred to as cold vegetable breeding, the same below) is more important. China has a long history of vegetable cultivation, nursery experience. In the long-term production practice, a set of cold-growing vegetable seedling technology system has been formed in the northern part of our country, and some of them have been playing a role of increasing production of precocious seeds in vegetable production. However, the production results show that the basic disadvantage of this existing system of vegetable seedling technology is: nurturing by experience is not only difficult