Heavy metals incidence in the application of inorganic fertilizers and pesticides to rice farming soils

abonos arroz cadmio cadmium cinc cobalt cobalto cobre copper copper sulphate cuivre engrais espagne farming systems fer fertilizers fongicide fungicidas fungicides heavy metals herbicidas herbicide herbicides hierro iron lead manganese manganeso metales pesados molinate molinato nickel paddy soil pesticide pesticides plaguicidas plomb plomo pollution rice riz soil sol spain suelo sulfate de cuivre sulfato de cobre superfosfato superphosphate thiobencarb thiobencarbe tiobencarb urea uree zinc