content: Nutrients have a big impact on your harvest, but so does types of light. Someone with more know-how can correct me on this if im wrong, but the plant needs different types of light (seasons) during its vegetative vs reproductive (flowering) states. Cool/Blue light (430 to 450 nm) will encourage vegetative growth (roots, stalk) whereas Warm/Red light (640 to 680 nm) will encourage stem/flower/fruit production. There are also other factors like light intensity, and duration to take into account as well.