Septoria spp.: use of different dosages and timing for optimal control [Septoria tritici, Septoria nodorum, split application, time of application]

agricultural warning services application rates avertissement agricole computador computers cultivos de invierno culture d'hiver danemark denmark dinamarca dose d'application erysiphe graminis fongicide fungicidas fungicides modele modelos models ordinateur puccinia recondita puccinia striiformis septoria triticum aestivum winter crops