[Use of sewage sludge treated with calcium oxide]

abonos agricultural chemicals agricultural lime agronomic characters amendement du sol analisis analyse analyse chimique analysis avenas avoine barley calcium oxide cebada cereales cereals chaux agricole chemical analysis chemicophysical properties crops cruciferas forrajeras cultivos cultivos de grano economic plants engrais engrais npk engrais organique enmiendas del suelo escandinavia europa europe feed crops feed crucifers feed roots fertilizantes npk fertilizers grain crops hortalizas (plantas) inorganic compounds irrigation mangolds methode methods noruega norway npk fertilizers oats orge oxides oxyde oxyde de calcium papa ph plantas plantas feculentas plantas forrajeras plante plante de culture plante racine plants pomme de terre potatoes productividad productivity produit agrochimique profitability remolacha forrajera rendement rendimiento rentabilidad riego root crops root vegetables rutabaga rutabagas sales salts scandinavia scandinavie sel soil soil amendments sol starch crops suelo vegetable crops yields