1. AccessAgriculture Training Video Ploughing breaks the soil and exposes it to erosion by the wind and rain. Sometimes a field can be planted without ploughing it at all, this is called zero or minimum tillage. If you want to break the surface slightly, you can harrow the field before planting it....
  2. This short document contains graphs that show how zero tillage leads to increased water infiltration and increased water retention in soil.