Distribution of microelements in the soil-forming substrates of Slovakia, 1: Mean content of microelements in substrates [Czechoslovakia, B, Cu, Mn, Mo, Zn]

agentes nocivos bore boro boron chemistry chimie chimie du sol cinc classification des sols cobre contaminantes contaminantes industriales copper cuivre elemento primario del suelo elements energia energie energy energy sources facteur nuisible heavy metals industrial pollutants injurious factors manganese manganeso metal metales metales pesados metals molibdeno molybdenum natural resources nutrientes nutrients oligoelementos pedogenese polluant polluant industriel pollutants recursos recursos naturales resources ressource ressource naturelle semimetales semimetals soil chemistry soil classification soil genesis soil parent materials substance nutritive trace elements transition elements zinc