目前,不少地区加长苗龄,育“带花”“带蕾”苗,认为这是一项增产措施。经多年的实践证明这样做对于大面积种植所需苗是困难极大的,在寒冷地区,尤为突出。因为这样做需要足够的温室面积,能源耗费极大(这里指非“工厂化育苗”而言)。由于苗龄过长,相应的多品种育苗的周期就会加大,往往会顾此失彼,造成了品种失调。而要使 At present, in many areas, increasing the age of seedlings and raising “flowers” and “buds” with seedlings means that this is an increase in production. After many years of practice, this has proved to be extremely difficult for planting large areas of seedlings, especially in cold areas. Because doing so requires sufficient greenhouse area, energy is very costly (in this case not “factory-grown”). As the seedling age is too long, the corresponding multi-species nursery cycle will increase, often take this intolerance, causing the species imbalance. And to make