#agriculture_engineering Classification of Tillage Primar | Agriculture Exams Library
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Classification of Tillage
Primary tillage
It constitutes the initial major soil working operation. It is normally designed to reduce soil strength,
cover plant materials and rearrange aggregates. The operations performed to open up any cultivable land with a view to prepare a seed bed for growing crops is known as primary tillage. Animal drawn implements mostly include indigenous plough and mould-board plough. Tractor drawn implements include mould-board plough,disc plough, subsoil plough, chisel plough and other similar implements.
Secondary tillage,:
Tillage operations following primary tillage those are performed to create proper soil tilth for seeding and planting are secondary tillage. These are lighter and finer operations, performed on the soil after primary tillage operations. Secondary tillage consists of conditioning the soil to meet the different tillage objectives of
the farm. The implements include different types of harrow, cultivators, levellers, clod crushers etc.
Types of Tillage
Minimum Tillage - It is the minimum soil manipulation necessary to meet tillage requirements for crop
production.
Strip Tillage - It is a tillage system in which only isolated bands of soil are tilled.
Rotary Tillage -It is the tillage operations employing rotary action to cut, break and mix the soil.
Mulch Tillage -It is the preparations of soil in such a way that plant residues or other mulching materials are
specially left on or near the surface.
Combined Tillage -Operations simultaneously utilizing two or more different types of tillage tools or implements to simplify, control or reduce the number of operations over a field are called combined tillage.
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