IPI International Potash Institute
IPI International Potash Institute

Description of the soybean experiment evaluating nutrient mobility in the soil

                     
  Table 3. Description of the soybean experiment evaluating nutrient mobility in the soil (after Vale, 2016).  
  Treatment   Liming   Base fertilizer   Additional fertilization  
  Timing A month before sowing   On sowing   First trifoliate (V1)   First flower (V6)  
    Heavy harrow   Onto furrow   Top soil  
  KCl   Dolomite limestone
(2.5 Mg ha-1)
  MAP
(200 kg ha-1)
  KCl
(70 kg K2O ha-1)
  KCl
(70 kg K2O ha-1)
 
  Polyhalite       Polyhalite
(eq. to 70 kg K2O ha-1)
  Polyhalite
(eq. to 70 kg K2O ha-1)