[Gaultheria procumbens. Substrates, winter covering and sowing rate]

bogs buffering capacity cantidad de semilla requerida densidad density eastern europe ericaceae europa oriental europe orientale fertilisation fertilizer application fisiologia vegetal growing media hiver invierno laine lana marais mezclado mixing peat pepiniere ph plant nurseries plant physiology racine roots sowing rates substrat de culture substratos de cultivo tourbe tremedal turba viveros vlies winter wool