Tilling is essential for breaking new ground. Tilling also helps to loosen the soil in preparation for planting, eliminate weed, and reduce harmful garden organisms by disrupting their lifecycle. However, frequent tilling is bad for soil because it reduces the compactness of soil and increases the risk of soil erosion and reduces crop residue which shields soil particles from the impact of forceful raindrops. This clogs soil pores and causes ineffective water infiltration.