IPI International Potash Institute
IPI International Potash Institute

Effects of K fertilizer type and dose on black pepper yield and quality traits.

                     
  Table 3. Effects of K fertilizer type and dose on black pepper yield and quality traits.  
  Treatment K-KCl K-polyhalite Fruit shed Fresh/dry pepper Fruit weight Fruit volume Fruit density Piperine  
    kg K2O ha-1 %   g 1,000-1 acorns cm3 1,000-1 acorns g L-1 %  
  T1 270 0 19.9 3.10 56.8 102.1 490 3.98  
  T2 0 0 35.4 4.50 42.1 73.4 435 3.60  
  T3 120 0 25.5 3.46 52.0 91.3 450 3.71  
  T4 60 60 23.3 3.23 53.8 96.1 473 3.87  
  T5 120 120 16.9 2.75 59.5 108.0 530 4.01  
  T6 180 180 16.1 2.69 60.0 109.1 544 4.12  
  LSD0.05     1.5 0.252 0.85 1.54 5.2