Effect of rates of nitrogen (nitrocalcium) and potassium (potassium chloride) on production and on some qualitative characteristics of tomato fruits (Lycopersicon esculentum Mill) cultivar Santa Clara, pruned and grown under high planting density

application rates azote calidad crop yield densidade de plantio dose d'application espacement espaciamiento lycopersicon esculentum nitrogen poda potasio potassio potassium productividad productivity pruning quality rendement des cultures rendimiento de cultivos spacing taille tomate tomatoes variedade