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W doświadczeniu prowadzonym w fitotronie badano reakcję 21 dniowych roślin ogórka na wysokie zaopatrzenie w azot podczas wzrostu w warunkach 70 i 30% ppw piasku. Uzyskane wyniki wykazały, że azot w stężeniu 24 mmol-dm-3 (9 mmol większym niż w pożywce Hoaglanda) zwiększa WSł, g, E i Pn a także zawartość niektórych cukrów prostych (ryboza, glukoza, fruktoza), dwucukrów (sacharoza, trehaloza), proliny...
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