| 
      
        | Treatments | NP    fertilization/pot | Amendment    1/pot | Amendment    2/pot |  
        | 1 | 0.5g    DAP and 0.5 g urea |  |  |  
        | 2 | 0.5g    DAP and 0.5 g urea | 19.6    g biochar |  |  
        | 3 | 0.5g    DAP and 0.5 g urea | 34.3    g compost |  |  
        | 4 | 0.5g    DAP and 0.5 g urea | 9.8    g biochar | 17.2    g compost |  | 
  
    | Where; NP stands for the fertilizers of nitrogen and phosphorus. | 
  
    | Table 2: Treatments considered under gram per area of pot basis. |