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Barkwaste as a growing medium for plants


, : Barkwaste as a growing medium for plants. Acta Horticulturae (37): 2013-2022

Physical and chemical analyses are presented for fresh and composted bark substrate derived from 9 hardwood tree species. Dracaena terminalis grew faster initially in the composted bark than in a mixture of pine needle litter and peat, but later growth was retarded due to N deficiency. It appeared that the organic N present in the bark was not transformed into mineral N. In a second trial with D. terminalis and Monstera deliciosa 1 or 2 kg of NH4NO3/m3 was added to composted bark.

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