Treatments | N% | P% | K% | Ca% | Mg% | Na% | Mn% | Fe% | Cu% | Zn% |
Un-manure | 0.02b | 1.06c | 0.01b | 0.05a | 0.01a | 0.01a | 2.77a | 4.41a | 0.20a | 0.89a |
Biochar | 0.05ab | 1.87b | 0.02ab | 0.07a | 0.01a | 0.01a | 4.02a | 4.02a | 0.53a | 1.41a |
Compost | 0.05ab | 2.33a | 0.04a | 0.08a | 0.01a | 0.01a | 4.84a | 4.85a | 0.50a | 1.24a |
Biochar + Compost | 0.07a | 2.55a | 0.03ab | 0.09a | 0.01a | 0.04a | 6.54a | 6.54a | 0.57a | 1.94a |