Biomass and nitrogen partitioning in sorghum (Sorghum vulgare L.) as affected by nitrogen fertilization

absorption de substances nutritives assorbimento di elementi nutritivi azote azoto contenido de materia seca crecimiento crescita croissance dry matter content grain granella granos growth nitrogen nutrient transport nutrient uptake nutrition des plantes nutrizione delle piante plant nutrition pot experimentation rendement rendimento rendimiento sorghum bicolor transport des substances nutritives transporte de nutrientes trasporto di elementi nutritivi yields