...concentrations should I have? I'm dissolving different amounts of urea in a litre of water. I need to have concentrations that are too high and concentrations that are too low. I need to have 5 different concentrations and pure water. Does anyone know what the optimum concentration is?
And should I water the basil every day (or say every second day) with the solutions? Or will that be too much urea?
Thanks so much
And should I water the basil every day (or say every second day) with the solutions? Or will that be too much urea?
Thanks so much