Table 1
Mineral contents of wood ash extract and rice straw before and after soaking
Sample Mineral content pH
Na P Ca Mg K
Original solution (g/l) 10.72 0.07 0.82 0.33 40.43 13.40
Solution after soaking (g/l) 4.86 0.06 0.32 0.02 24.84 12.25
Rice straw before soaking (g/kg) 5.46 0.57 13.38 0.01 21.68 –
Rice straw after soaking (g/kg) 14.18 0.54 13.57 0.01 49.98 –