Table 4.
Concentrations of metalaxyl and its Enantiomers as well as the metabolite in the Cameroonian soil after the respective incubation intervals
| Fungicide/Day | Mean Concentration (μG/100g Of Dry Soil) | |||
|---|---|---|---|---|
|
| ||||
| Metalaxyl | R-Metalaxyl | S-Metalaxyl | Acid Metabolite | |
| F-Metalaxyl | ||||
|
| ||||
| 0 | 170 (100%) | 86 (100%) | 86 (100%) | < 0.05 (0%) |
| 14 | 100 (59%) | 52 (60%) | 50 (58%) | 11 (6.5%) |
| 30 | 85 (49%) | 45 (52%) | 40 (47%) | 6.5 (3.8%) |
| 75 | 29 (17%) | 20 (24%) | 9.1 (10%) | 3.0 (1.8%) |
| 90 | 27 (16%) | 20 (23%) | 6.7 (7.8%) | 2.0 (1.2%) |
| 120 | 20 (12%) | 16 (19%) | 3.9 (4.5%) | 3.4 (2.0%) |
|
| ||||
| P-Metalaxyl | ||||
|
| ||||
| 0 | 170 (100%) | 87 (100%) | 87 (100%) | < 0.05 (0%) |
| 14 | 100 (60%) | 51(59%) | 51 (58%) | 7.0 (4.1%) |
| 30 | 85 (49%) | 48 (55%) | 38 (43%) | 5.5 (3.2%) |
| 75 | 28 (16%) | 21 (25%) | 6.8 (7.8%) | 2.8 (1.6%) |
| 90 | 25 (14%) | 21 (24%) | 4.7 (5.4%) | 1.6 (0.90%) |
| 120 | 18 (11%) | 16 (1 %) | 2.6 (3.0%) | 1.6 (0.92%) |
|
| ||||
| Mefenoxam | ||||
|
| ||||
| 0 | 86 (100%) | 0.55 (0.64%) | ||
| 14 | 50 (59%) | 5.6 (6.6%) | ||
| 30 | 38 (45%) | 2.5 (2.9%) | ||
| 75 | 14 (16%) | 0.12 (0.14%) | ||
| 90 | 14 (16%) | 0.12 (0.14%) | ||
| 120 | 9.5 (11%) | 0.18 (0.21%) | ||