Table 1.
Influence of fulvic acids (FA) on exchangeable calcium, magnesium, organic–inorganic degree compound and organic–inorganic composite after maize harvested (mean ± standard error; n = 4).
| Treatments g/kg |
Ca meq/L | Mg meq/L | Organic–Inorganic Degree Compound (%) | Organic–Inorganic Composite (g/kg) |
|---|---|---|---|---|
| Control | 240.1 ± 5.10 a | 26.7 ± 4.34 a | 32.55 ± 1.32 a | 1.09 ± 0.02 a |
| PDSF | 226.4 ± 22.6 a,b | 23.4 ± 0.25 a | 28.84 ± 1.24 a,b | 1.02 ± 0.01 b |
| MDLF | 248.3 ± 6.43 a | 21.1 ± 0.70 a | 26.77 ± 1.26 b | 1.08 ± 0.09 a |
| PDLF | 189.5 ± 17.25 b | 25.9 ± 0.83 a | 26.74 ± 1.40 b | 1.09 ± 0.01 a |
Data are mean of (n = 4). Means followed by different letters (a, b) are significantly different from each other at (p < 0.05). Values are meant ± standard error, nd 3. Heavy fraction carbon (HFC), light fraction carbon (LFC), PDSF plant-derived (Solid), mineral-derived (Liquid), and plant-derived (liquid) fulvic acids (FA).