[The fertilization of the grain sorghum]

abonado fraccionado abonos de oligoelementos abonos npk absorption de substances nutritives amendement calcique application rates disponibilidad de nutrientes dose d'application engrais npk enmiendas calizas guarico liming materials micronutrient fertilizers npk fertilizers nutrient availability nutrient uptake rendement rendimiento soil soil texture sol sorghum bicolor split dressings suelo textura del suelo texture du sol yields