Rotavator or rotary tiller- Rotavator is a farming tool that breaks up and churns soil in preparation for planting. It is also referred to as a rotary tiller or rotary hoe. Usually made up of several sets of revolving blades or tines, it breaks up the soil into smaller pieces and incorporates fertilizer or organic matter. In order to create a seedbed with improved soil structure, which encourages better seed germination and plant growth, rotavators are frequently used in agriculture and gardening.