| Particle Size | Grain yield of Maize | Average | CV (%) | |||||
| (mm) | Mg∙ha−1 | |||||||
| 2009 | 2010 | |||||||
| Control | 4.16 | b1 | A | 5.23 | b | A | 4.69 | 38.38 |
| 0.30 - 0.20 | 8.77 | a | A | 7.45 | a | B | 8.11 | 18.29 |
| 0.20 - 0.10 | 8.44 | ab | A | 8.13 | a | B | 8.31 | 19.35 |
| 0.10 - 0.05 | 8.06 | b | B | 7.39 | a | A | 7.95 | 15.51 |
| 0.05 - 0.01 | 7.55 | b | B | 8.02 | a | A | 7.78 | 14.2 |
| Average | 8.51 | A | 7.33 | A | ||||
| CV(%)2 | 15.8 | 14.7 | ||||||