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.