1974年瑞典容器苗已占造林比重的40％。容器苗种类很多,塑料弹形容器是其中之一。弹形容器以六十七个为一盘,二十二厘米宽,三十五厘米长,八厘米高,装满营养土和播种后总重三公斤。一个集装架能装六十个育苗盘,一台拖拉机一次运一百二十盘苗。造林工人的腰带上有两个挂扣,苗盘能妥贴地挂在上面。不整地。手工栽植的工具是 1974 Swedish container seedlings have accounted for 40% of the proportion of afforestation. Container seedlings a lot of plastic bullet-shaped container is one of them. Sixty-seven shells, 22 centimeters wide, 35 centimeters long, and 8 centimeters high were filled with nutrient soil and a total weight of three kilograms after sowing. A pallet can hold 60 nursery plates, a tractor shipped 120 plates at a time. There are two hanging buckles on the belt of afforestation workers, and the seedling tray can be properly attached to it. Not in place. Hand-planted tools are