The best Side of Soilless cultivation
The substrate solution was then stored at −twenty°C until eventually the ammonium and nitrate contents were being analyzed Together with the San++ Steady-Circulation Analysator (Skalar Analytic GmbH, Erkelenz, Germany). Nitrate resolve was based upon a reaction with hydrazinium sulfate, sulfanilamide and N-(one-naphthyl) ethylenediamine dihydroc