Want to engage in soilless culture, can soilless culture technology be operated in the field now? Why does Shouguang only engage in sightseeing and not promote it on a large scale? If you know, please. ... Technically speaking, there is no problem in field operation, mainly the cost, and it is ok for places where land is scarce. However, when faced with numerous competitions and cheap logistics costs, high costs and poor market prices determine that most soilless culture and greenhouses can only be face projects of local governments. Thank you!