Swedish to English Social Sciences History

This comes from a text on the introduction of potatoes in Sweden in the 18th century. Here, the author briefly talks about "odlingsbäddar" and how the ones used for growing potatoes differ from those used for growing tobacco. In NE, odlingsbädd is described as:

odlingsbädd, jord, torv eller annat material för odling av kulturväxter. I växthusodling bör en odlingsbädd vara porös och näringsrik med reglerad tillgång på vatten och växtnäringsämnen. I växthus används ofta sammansatta substrat med t.ex. torv eller stenull.

However, after some googling it also seems to refer to the actual site of the cultivation, which leaves me confused as to how this should be translated. All suggestions are greatly appreciated!