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Agronomy QUESTION #2018
Question 1
Minimum tillage is advocated in modern agronomy primarily because it:
  • Increases soil compaction which improves root anchorage
  • Reduces soil erosion, preserves organic matter, lowers fuel costs, and maintains soil biotic activity✔️
  • Completely eliminates the need for herbicide application
  • Increases soil bulk density to improve water retention
Correct Answer Explanation
Minimum tillage (conservation tillage) reduces the number and intensity of tillage operations. This conserves soil structure, reduces erosion, maintains soil organic matter and microbial activity, and significantly reduces labor and fuel costs — central to sustainable crop production.