Symbio, D-51109 Koeln/ Germany  Bruecker Mauspfad 207                   tel: + 49/ 221/ 897556                     mail: h.boeckem@gmx.de
Fertilisation Vs. Mycorrhiza
•However, mycorrhizae react very sensitively to nitrogen: at high fertilisation levels (as wanted in tree nurseries, etc.) these fungi simply die (viz. AFZ 8, 1992).
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•Previously, in order to protect the existing mycorrhizae, no efficient fertilisation was possible at the same time when mycorrhization took place. In later stages of the cultivation the possibilities of additional fertilisation were highly restricted.