Nutrient solution is supplied by the dripping method in general. In most cases, nutrient solution is applied and discharged periodically. This method is mainly employed for the cultivation of ornamental plants. The size of particles is varied. In many cases, nutrient solution is supplied from the bottom.
Nutrient solution is applied by the dripping method.
The rockwool is a fibrous substrate and consists of various types of rocks, primarily diabas or slag melted at high temperature. This culture method was recently introduced to Japan from Europe. Rockwool culture has several types. One of them is the method by which rockwool slabs are wrapped with plastic films and nutrient solution is applied by the dripping method. Another method is to place slabs on a tray without wrapped with films.