Does anyone know of a textbook or has knowledge on hydroponics that
provides information such as the basic conditions that are applied
to plants grown hydroponically? Info is for an A level student looking
at what factors could be varied in an experiment.( general I know but
info is for A level student). Sunflower is to be the test plant e.g.
recommended Temp, nutrients -levels and types.
What salts are dissolved in the solution? Is flow rate important?
Any assistance would be appreciated?