"The effect of nitrogen surplus in fertilizing rates applied to echinacea purpurea (l.) Moench. on the production of its active substances"@en . . "11" . "12220" . . "The effect of nitrogen surplus in fertilizing rates applied to echinacea purpurea (l.) Moench. on the production of its active substances"@en . "4"^^ . "RIV:J06/98:122200100!RIV/1998/MSM/MSM8F60" . "Pa\u0161ek, Josef" . "0"^^ . . . . "Ledvina, Rostislav" . "44" . "Kol\u00E1\u0159, Ladislav" . "[38071E2D28F0]" . . "Rostlinn\u00E1 v\u00FDroba" . "Vliv nadbytku dus\u00EDku ve v\u00FD\u017Eiv\u011B Echinacea purpurea (L.) Moench. na tvorbu jej\u00EDch \u00FA\u010Dinn\u00FDch l\u00E1tek" . . . "RIV:J06/98:122200100" . "3"^^ . . . "Ku\u017Eel, Stanislav" . "489;495" . "0370-663X" . . "788455" . "Vliv nadbytku dus\u00EDku ve v\u00FD\u017Eiv\u011B Echinacea purpurea (L.) Moench. na tvorbu jej\u00EDch \u00FA\u010Dinn\u00FDch l\u00E1tek" .