Substrate cultivation refers to the use of solid mechanisms fixed as a root system, through the watering of nutrient solution or the use of solid fertilizer, so that the crops absorb more nutrients as well as oxygen and other nutrients, is now more commonly used in a soilless cultivation technology.

Open rockwool cultivation refers to planting vegetables in rockwool, and then the nutrient solution is dripped into the rockwool planting mat through drip irrigation. This allows for the absorption of sufficient nutrients. If there are excess nutrients, they can also flow out of the bottom of the planting mat and drain outside, which is both convenient and scientific.