LOL yes, it is.
I once was talking to a commercial grower friend. Now, this guy has 120 acres under shade. That means they plant and harvest about 30 acres each year. I was mentioning that his labor costs must be massive since he had to disinfect every piece of equipment as he moved it to a new location. He verified that indeed it was. The bring in large livestock watering tubs and fill them with bleach water to disinfect posts, netting, and hardware for the shade.
Then, he looked at me and said that this was not at all the expensive part.
So I asked...
He then told me the expensive part was buying new farms!
Remember, with replant failure in commercial or other dense plantings, they canrnot afford to plant the same ground twice. In fact, the ginseng growers associations keep a registry of farm ground to verify if the land has had ginseng grown there at any point prior.
As a result, these guys tie up lots of land. They grow their own straw (and be sure it is VERY clean), they lease out for potatoes and other herbal crops too until theyhave it conditioned and ready to plant their ginseng crop. They then tend that crop for 4 years on average before harvesting it...and then moving to new ground.