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BU5塑料大棚,首先在纬度高、苗木生长期短的瑞典、芬兰等北欧国家得到推广应用。在日本,塑料大棚的发展最初是从改变愎盖材料出发,即从塑料薄膜代替油纸使用。在50年代初,日本逐渐推广应用,但主要应用于培育瓜菜苗等。到60年代,巴西、南非、日本等国的育苗,大多采用集约
BU5 plastic greenhouse, first in latitude, short seedling growth in Sweden, Finland and other Nordic countries have been promoted. In Japan, the development of plastic greenhouses initially started with the change of cap material, ie from the use of plastic film instead of oil paper. In the early 1950s, Japan gradually promote the use, but mainly used to cultivate vegetables and other vegetables. By the 1960s, most of the nurseries in Brazil, South Africa and Japan were intensive