Chemical and biological properties of A horizon silt loam, Bt horizon clay loam, deionized water control, dilute aerated compost tea (ACTc), concentrated aerated compost tea (ACTd), and 30-10-7 synthetic fertilizer treatment. Means with (SE) listed below are from three replicates.
| Parameter | pH | Ca2+ | Mg2+ | K+ | Na+ | P | C | N | C/N | NH4+ | NO3− | DON | MBN | RES | PMN |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (1:1) | (mg kg−1) | (mg kg−1) | (mg kg−1) | (mg kg−1) | (mg kg−1) | (%) | (%) | (ratio) | (mg kg−1) | (mg kg−1) | (mg kg−1) | (mg kg−1) | (mg kg−1 d−1) | (mg kg−1 d−1) | |
| A horizon soil | 6.20 | 1230 | 571 | 120 | 45.3 | 4.91 | 2.58 | 0.261 | 10.3 | 3.12 | 8.62 | 2.81 | 47.8 | 41.1 | 0.240 |
| (0.2) | (32) | (8) | (4) | (6) | (1.0) | (0.3) | (0.03) | (0) | (0.8) | (0.7) | (0.2) | (3) | (1) | (0.02) | |
| Bt horizon soil | 8.01 | 1922 | 319 | 200 | 48.8 | 1.62 | 1.87 | 0.073 | 26.8 | 0.502 | 0.803 | 1.22 | 20.7 | 10.5 | 0.042 |
| (0.3) | (18) | (5) | (1) | (2) | (1.1) | (0.1) | (0.01) | (1) | (0.61) | (0.41) | (0.4) | (5) | (2) | (0.08) | |
| water treatment | 7.52 | 1153 | 225 | 126 | 48.1 | 0.601 | 0.50 | 0.001 | 512 | 1.21 | 0.501 | 1.21 | 0.002 | 0.103 | 5.28 |
| (0.4) | (13) | (9) | (22) | (2) | (0.4) | (0.2) | (0.01) | (11) | (0.1) | (0.01) | (0.0) | (0.03) | (0.01) | (0.3) | |
| ACTd treatment | 7.57 | 1886 | 509 | 154 | 48.8 | 2.21 | 5.14 | 0.903 | 5.91 | 5.32 | 0.911 | 1.62 | 13.2 | 0.101 | 15.2 |
| (0.1) | (38) | (9) | (9) | (3) | (2.1) | (0.7) | (0.20) | (0.6) | (0.1) | (0.31) | (0.7) | (1) | (0.04) | (6) | |
| ACTc treatment | 4.88 | 1893 | 534 | 164 | 42.2 | 4.83 | 84.1 | 8.16 | 10.3 | 7.20 | 8.32 | 5.21 | 132 | 5.31 | 21.7 |
| (0.0) | (9) | (3) | (3) | (5) | (2.1) | (1) | (0.1) | (0) | (0.2) | (0.2) | (0.1) | (4) | (1.1) | (2) | |
| fertilizer treatment | 4.91 | 1401 | 528 | 117 | 42.2 | 4.82 | 36.4 | 29.7 | 1.22 | 4.91 | 4.10 | 4.53 | 148 | 9.52 | 11.2 |
| (0.1) | (276) | (10) | (6) | (10) | (2.2) | (1) | (1) | (0.1) | (1.1) | (0.2) | (0.9) | (45) | (4.2) | (6) |
Abbreviations: aerated compost tea (ACT), calcium (Ca), magnesium (Mg), potassium (K), sodium (Na), Bray P1 phosphorus (P), organic carbon (C), total nitrogen (N), ammonium (NH4+), nitrate (NO3−), dissolved organic N (DON), microbial biomass N (MBN), Solvita test respiration (RES), and potential N mineralization (PMN).