The best Side of Soilless cultivation
The substrate solution was then stored at −20°C right until the ammonium and nitrate contents ended up analyzed With all the San++ Continual-Movement Analysator (Skalar Analytic GmbH, Erkelenz, Germany). Nitrate perseverance was according to a response with hydrazinium sulfate, sulfanilamide and N-(one-naphthyl) ethylenediamine dihydrochloride w