1.6: Dry matter partitioning in relation to carbohydrate availability

azote azufre betula carbohidratos carbohydrates carence du sol contenido de materia seca crecimiento croissance deficiencias del suelo disponibilidad de nutrientes dry matter content fosforo glucide growth magnesio magnesium manganese manganeso nitrogen nutrient availability nutrientes nutrients phosphore phosphorus potasio potassium racine relaciones fuente sumidero relation source puits roots soil deficiencies soufre source sink relations stems substance nutritive sulphur tallo tige