• Analysis of the potato crop nutrient status in Costa Rica, on the basis of existing information 

      Fallas Corrales, Róger Armando; Bertsch Hernández, Floria (2014-07-04)
      An analysis of the potato leaf nutrient concentration in Costa Rica was made, from the results of foliar analyses conducted during the years 2006-2012 at the Soil and Foliar Laboratory of the Agronomic Research Center, ...
    • Nivel crítico de zinc en suelos de Costa Rica 

      Molina Rojas, Eloy Alberto; Bornemisza Steiner, Elemer (2005-11-01)
      Se determinó el nivel crítico de Zn disponible en 4 órdenes de suelos de Costa Rica (Ultisoles, Vertisoles, Inceptisoles y Andisoles, 25 de cada uno), con 5 soluciones extractoras: Olsen Modificado (OM), Mehlich 3 (M3), ...