[Growth and nutrients accumulation of the fruit of the guava tree (Psidium guajava) in the Municipality Mara. Estimate of the fertilization needs by restitution]

absorption de substances nutritives analyse de tissus besoin nutritionnel crop yield disponibilidad de nutrientes espesor fertilisation fertilizer application floraison flowering maturation necesidades de nutrientes nutrient availability nutrient uptake nutritional requirements periodo vegetativo peso poids psidium guajava rendement des cultures rendimiento de cultivos soil sol sprouting suelo thickness tissue analysis vegetative period weight zulia (venezuela)