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Przeprowadzono dwuletnie badania nad zastosowaniem aparatów z porowatymi kubkami ceramicznymi do oznaczeń stężenia azotu azotanowego w roztworze glebowym oraz wymycia N-NO₃ spod użytków zielonych. Stwierdzono, że stężenie N-NO₃ oraz straty azotu przez wymycie kształtują, na lekkiej glebie mineralnej, uwilgotnienie i odczyn gleby oraz dawka i forma nawozu azotowego. Dostatek wody w glebie zmniejsza...
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