Nitrogen (N) is important for optimal crop growth. It is also important for the creation of chlorophyll, which allows for better photosynthesis.
In optimal cultivation, it is important that the plant is able to absorb enough nitrogen and thus be able to grow at its best.
In case of moderate lack: 0.75 ml per 1 liter.
In case of normal lack: 1 ml per 1 liter.
In case of serious fault: 2 ml per 1 liter.