Plum tree nutrition: effects of phosphorus, liming and some other elements on vigour, yield, fruit weight and fruit quality of "Mallard" plum (Prunus domestica L.) grown on a virgin, acid soil

abonos absorption de substances nutritives amendement calcique arbre fruitier calcio calcium calidad ciruela crop yield engrais enmiendas calizas fertilizers fosforo fruit trees liming materials magnesio magnesium noruega norway nutrient uptake peso phosphore phosphorus plums poids potasio potassium prune prunus domestica quality rendement des cultures rendimiento de cultivos weight