Tillage - definition and Objectives

Physical Manipulation of soil with tools and implements for obtaining conditions ideal for better seed germination, seedling establishment and growth of plants is called tillage.
Objectives of tillage for crop production
  • To facilitate adequate soil aeration for gaseous exchange in the seed and root zone.
  • Adequate seed-soil contact to permit water flow to seed and seedling roots.
  • A non-crusted soil to permit seedling emergence.
  • A low density soil that permits root elongation and proliferation.
  • To create an environment that provides adequate light to the seedling (weed free environment).
  • To create pest and pathogen free environment.
  • To mix the applied manures and fertilizers with the soil.
  • To remove the hardpan, if any to increase the soil depth for water absorption.

Overturning the truth on conservation tillage | Crop Science Society of  America