The recirculated hydroponic system for strawberry nursery production in plant factories

Abstract

Plant factories could be used as a bioreactor for the production of disease free and PGR free (plant growth regulator) daughter plants in strawberry. The recirculated hydroponic system often resulted in growth retarded and physiological disorder in strawberry. The improved recirculated system provided the environment with stable EC and pH value, which enable strawberry plants to grow much vigorous and produce more runners. The concentration of NO3-, K+, Ca2+, Mg+, and SO42- in the solution was measured, and the ion content and consumption in the solution was calculated. A new solution was designed for reducing the frequency of solution renewing and release the plants from suffering the accumulation of certain ion according to the solution analysis. For reducing the labor cost, the cultivation support for easy rooting is also testing.