Meliorant on väetis, mille abil parandatakse mulla või kasvusubstraadi füüsikalisi ja keemilisi omadusi, samuti bioloogilist seisundit, ning mis soodustab taimede kasvu või parandab saagi kvaliteeti.
The most appropriate place for carrying out plant-health checks is the place of production. In respect of Community products, these checks must therefore be made mandatory at the place of production and should extend to all relevant plants and plant products grown, produced, used or otherwise present there, and to the growing medium used there.
