These are implements which are coupled or attached to a tractor in order to enable it to perform its work. Examples of tractor-coupled implements are ploughs, harrows, ridgers, planters, cultivators, harvesters, sprayer, mower, baler, fertilizer applicator and harvester.   A) The Plough The plough is a primary tillage (or soil cultivation) implement. It is the first implement required in land preparation. It is mainly driven by either work animals or tractor. Types of Ploughs There are two main types of ploughs. These are: Disc plough. Mouldboard plough.   Disc Plough The disc plough is a strong implement adapted to tropical environment where the soil contains stones, hard pans, and roots…