Table 5.
Effects of green manure and rates on the severity of gray leaf spot on maize.
| Leaf spot severity |
Leaf spot incidence (%) |
|||||||
|---|---|---|---|---|---|---|---|---|
| Weeks after emergence | Weeks after emergence | |||||||
| Treatments | 4 | 6 | 8 | 10 | 4 | 6 | 8 | 10 |
| CAL 6 t.ha−1 | 3.2 | 3.9 | 4.2 | 4.4 | 100 | 100 | 100 | 100 |
| CAL 3 t.ha−1 | 3.2 | 3.7 | 4.1 | 3.9 | 100 | 100 | 100 | 100 |
| PAN 6 t.ha−1 | 3.3 | 3.7 | 3.9 | 4.2 | 100 | 100 | 100 | 100 |
| PAN 3 t.ha−1 | 3.0 | 3.5 | 4.3 | 4.7 | 100 | 100 | 100 | 100 |
| CONTROL | 2.9 | 3.2 | 3.7 | 4.0 | 100 | 100 | 100 | 100 |
| MEAN | 3.1 | 3.6 | 4.0 | 4.3 | 100 | 100 | 100 | 100 |
| LSD Treat (5%) | 0.3*** | 0.0ns | ||||||
| LSD Samreg (5%) | 0.2*** | 0.0ns | ||||||
| CV (%) | 3.6 | 0.0 | ||||||
LSD Treat = least significant difference between the treatments; LSD Samreg = least significant difference between the sampling regimes; ns = not significant; *** = significant at p < 0.001; CAL (Calopogonium-Pueraria mixture), PAN (Panicum), and Control, amended with NPK 15:15:15 at 200 kg.Nha−1.