| Experiment | Target |
|---|---|
| The effect of tillage methods on the growth and yield of sorghum. | This experiment was conducted to compare different tillage methods, namely zero-tillage, minimum-tillage and the traditional tillage-based methods, in terms of their effects upon the growth and production of sorghum (Wad Ahmed). |
| The effect of tillage methods on the growth and yield of sunflowers | This experiment was conducted to compare different tillage methods, namely zero-tillage, minimum-tillage and the traditional tillage-based methods, in terms of their effects upon the growth and production of sunflowers (Hysun 33). |
