[Research report 1998. The collaboration project IJVF [Institutt for Jord- og Vannfag] - Norsk Hydro ASA. Effect of fertilizing on crop yield and mineral content]

absorption de substances nutritives amendement du sol cereal crops contenido mineral crop yield cultivos de cereales enmiendas del suelo fertilidad del suelo inorganic fertilizers lolium mineral content noruega norway nutrient uptake nutrition des plantes oligoelementos papa plant nutrition pomme de terre potatoes rendement des cultures rendimiento de cultivos soil amendments soil fertility trace elements triticum