IPI International Potash Institute
IPI International Potash Institute

Table 2. Fertilization treatments applied in both locations.

         
  Table 2. Fertilization treatments applied in both locations.  
  Treatment N-P2O5-K2O Fertilization  
    kg/ha  
  Control 0 0  
  N 170-0-0 810 ammonium sulphate  
  NP 170-170-0 810 ammonium sulphate + 350 superphosphate  
  NPK1 170-170-170 1,000 compound fertilizer (17-17-17)  
  NPK2 170-170-340 1,000 compound fertilizer (17-17-17) + 340 of potassium sulphate  
  NPK3 170-170-510 1,000 compound fertilizer (17-17-17) + 680 of potassium sulphate  
  Note: In addition to these nutrients, 100 kg N/ha was applied at the tillering/elongation stage in all treatments.