Effects of long-term fertilisation and growth on micronutrient status in Norway spruce trees

abonos de oligoelementos arbre forestier bore boro boron carence en substance nutritive cinc cobre copper crecimiento croissance cuivre deficiencias nutritivas fer fertilisation fertilizer application forest soils forest trees growth hierro iron manganese manganeso micronutrient fertilizers nutrient deficiencies oligoelementos picea abies suecia suelo forestal sweden trace elements zinc