You still think that salades are grown on, as we call it in Holland, full ground? This is how its done now, 5 layers on top of each other and no more dirty grou

You still think that salades are grown on, as we call it in Holland, full ground? This is how its done now, 5 layers on top of each other and no more dirty ground. http://www.food-nutrition.nl/artikelen/groenteteelt-op-een-hoger-plan/ http://www.food-nutrition.nl/artikelen/groenteteelt-op-een-h...