Yield and nutrient uptake by lettuce as affected by lime and by mineral and organic fertilization in a Psammaquent soil

abonos fosfatados abonos nitrogenados abonos potasicos absorption de substances nutritives alface chaulage crop yield encalado engrais potassique fertilizante fosfatado fertilizante nitrogenado lactuca sativa liming nitrogen fertilizers nutrient uptake phosphate fertilizers potash fertilizers rendement des cultures rendimento rendimiento de cultivos soil types type de sol